68 results about "Diamondoid" patented technology

The invention provides a preparation method for preparing a diamond-like carbon protective film on the surface of glass, the diamond-like carbon protective film and the glass.The preparation method for preparing the diamond-like carbon protective film on the surface of the glass comprises the steps that mixed gas of silane, acetylene and argon with the flow ratio being 10: 5: 1-20: 10: 1 is introduced into a reaction chamber; the pressure intensity in the reaction chamber is adjusted to 0.1-10 Pa; the power of a pulse ionization power supply is set to be 100-2000 W; the plasma auxiliary voltage is set to be 10-1000 V; and depositing the diamond-like carbon protective film with Si-H functional groups on the surface of the glass under the conditions that the deposition temperature is 50-200 DEG C and the deposition time is 10-120 minutes. By applying the technical scheme provided by the invention, the problems of poor hydrophobicity and light transmission of glass in the prior art can be effectively solved.

The invention discloses a hydrophobic diamond-like carbon coating and a preparation method thereof. The hydrophobic diamond-like carbon coating comprises a transition layer and an F-DLC layer. The preparation method comprises the following steps: S1, cleaning the substrate; s2, the coating chamber is vacuumized and heated, and the coating chamber and the base body are baked; s3, carrying out ion etching cleaning on the surface of the substrate; s4, after etching is completed, a Cr layer or a Ti layer is deposited on the surface of the base body in a magnetron sputtering mode to serve as a transition layer; and S5, inert gas and carbon tetrafluoride are introduced, the graphite target is started, and the F-DLC layer is deposited in an arc ion plating mode. Wherein in the step S5, the ratio of the introduced inert gas to the carbon tetrafluoride is 1: 0.3-1: 4, the cavity pressure of the coating cavity is 0.1-5.0 Pa, the bias voltage of the substrate is 20-800 V, and the target current of the graphite target is 20-400 A. The hydrophobic diamond-like coating is prepared in an electric arc ion plating mode, the characteristics that the target material particle energy is improved, the deposition rate is high, and the film layer compactness is good are achieved, and the prepared coating is better in hydrophobic angle and excellent in anti-sticking performance.

The invention discloses a wear-resistant diamond-like carbon composite film on the surface of a rubber material and a preparation method and application of the wear-resistant diamond-like carbon composite film. The abrasion-resistant diamond-like carbon composite film sequentially comprises a Ti transition layer and a DLC functional layer. Wherein the Ti transition layer is sputtered and deposited on the surface of a rubber material through a direct-current magnetic control power supply, so that the bonding strength of the film can be greatly improved; the DLC functional layer is deposited on the Ti transition layer, and the structure of the DLC functional layer can be flexibly regulated and controlled by adjusting on and off of a Ti target power supply, so that the tribological performance and the environmental adaptability of the composite film are optimized. The abrasion-resistant diamond-like composite film has the advantages of being high in bonding strength, low in friction coefficient, high in environmental adaptability and the like, can be used for surface strengthening and service life prolonging of rubber sealing materials in the marine environment, and is suitable for large-scale industrial production.

The invention discloses a novel method for detecting the thickness of a diamond and diamond-like carbon coating layer based on X-rays, which adopts X-ray nondestructive detection and adds an optimization algorithm, can solve the influence of residues on a detection result by an algorithm for single-ray mutual interference of the same element, and can improve the detection accuracy. The optimization algorithm and the method can be applied to the thickness of diamond grown in the surface physical modification direction of chip products, diamond-like carbon (DLC) coatings on the surfaces of hard alloys such as tool steel and structural materials, CVD (chemical vapor deposition) diamond coatings and the like. The method is also applicable to other element thicknesses of which the surfaces are not detected by the energy dispersion X-ray fluorescence spectrometer, such as nitrogen N layers and oxygen O layers, and also comprises cicada wing membranes or biological bionic membranes in the biological direction. In the aspect of chemical industry, the method is suitable for PE polyethylene and epoxy resin.

The invention discloses a workpiece with a diamond-like carbon film. The workpiece comprises a base material, a first diamond-like carbon film layer, a silicon nitride film layer, a second diamond-like carbon film layer and an elastomer layer, the first-type diamond film layer is arranged on the base material, the silicon nitride film layer is arranged on the first-type diamond film layer, the second-type diamond film layer is arranged on the silicon nitride film layer, the first-type diamond film layer, the silicon nitride film layer and the second-type diamond film layer form a diamond-like composite film structure, and the elastomer layer is arranged on the second-type diamond film layer. In addition, the ratio of the total thickness of the first diamond-like carbon film layer, the silicon nitride film layer and the second diamond-like carbon film layer to the thickness of the elastomer layer is 11: 10-29: 15, so that the elastomer layer can play a good role in improving the bending performance of the diamond-like carbon composite film structure.

This invention discloses a DLC diamond coating, its preparation, and its application method, relating to the field of diamond-like carbon coating technology. Specifically, it includes the following steps: Step S1, substrate graded cleaning and ion etching pretreatment; Step S2, in-situ synthesis of a Ti-TiC-SiC gradient transition layer; Step S3, construction of a silicon / boron co-doped nanocomposite functional layer. This invention alleviates interfacial stress by constructing a gradient transition layer, utilizes a periodic modulation process to form a soft-hard alternating nanolayered structure, and combines a silicon-boron co-doping strategy; effectively solving the problems of high internal stress, poor adhesion, and easy high-temperature failure in coatings, achieving a balance between high hardness, high toughness, and excellent high-temperature wear resistance.

The invention provides anti-halation glass and a vehicle. The anti-halation automobile glass comprises a glass plate; an anti-halation film is arranged on the surface of the glass plate, and a transition layer of the anti-halation film is arranged on the surface; the anti-halation film comprises a transition layer, a silicon-doped diamond-like layer and an oleophobic layer which are sequentially arranged, and the oleophobic layer is located in at least part of the area of the surface of the silicon-doped diamond-like layer; and the content of silicon atoms in the silicon-doped diamond-like carbon layer is 15-20 at%. The invention further provides a vehicle provided with the anti-halation glass. The anti-halation film of the anti-halation glass provided by the invention can eliminate halation defects and radial defects generated during imaging.

The present invention provides a diamond-like carbon film chromatographic column, a preparation method thereof and uses thereof. The preparation method of the diamond-like carbon film chromatographic column is as follows: a ternary nano-composite coating formed by a metal element, an N element and a C element is formed on the inner wall of the chromatographic column by using a micro-arc ion plating technique. The chromatographic column of the present invention can effectively reduce the non-specific adsorption of target analytes sensitive to metals, obtain stable, effective and ideal analysis results, and at the same time does not affect the durability and convenience of the chromatographic column.

The application discloses a laparoscope and a preparation method thereof. In order to improve the wear resistance of the surface of the laparoscope, a silicon oxide / diamond-like carbon composite coating is prepared. Research shows that a low content of diamond-like carbon has little influence on the contact angle of the composite coating, and all can meet the demand of the anti-fog of the coating, but when the content of the diamond-like carbon reaches 50%, the contact angle of the composite coating is obviously increased, and at this time, the composite coating is not suitable for being used as the laparoscope material. At the same time, with the increase of the content of the diamond-like carbon in the composite coating, the wear resistance of the composite coating is gradually improved. In consideration of the wear resistance and the anti-fog performance of the material, the carbon content is preferably controlled in a range of 7% to 29%.

The invention discloses an anti-oxidation special steel high-speed wire decarburization prevention material which is prepared from the following components in parts by weight: 30-50 parts of a component A, 30-50 parts of a component B, 10-30 parts of a component C, 10-30 parts of a component D and 5-10 parts of a pigment, the component A is internally provided with boron modified adamantane, epoxy bentonite, silicon phosphate, amino acid potassium and amino modified triazine, and the component D is internally provided with boron modified adamantane, epoxy bentonite, silicon phosphate, amino acid potassium and amino modified triazine. The component B is internally provided with nano graphene, polyvinyl alcohol, a transparent film and benzoic acid, and the component C is internally provided with SiO2, Al2O3, talcum powder and gypsum powder. After the product is brushed, a coating is compact, the texture is hard, no gap or void exists, the oxidation loss of steel and iron during heat treatment and the procedure of removing oxide skin are avoided through coating smearing, and the coating quality is improved. The specification and the size of the workpiece are more accurate; fatigue strength reduction caused by metal decarburization during heat treatment is avoided, surface gas absorption of metal during heat treatment is avoided, and metal embrittlement is prevented.

The preparation method of the diamond-like carbon coating comprises the following steps: heating in an octagonal furnace, and introducing nitrogen and hydrogen; the vertical up-down ion bombardment structure is started, the first side edge dip angle ion bombardment structure and the second side edge dip angle ion bombardment structure are started in sequence, and workpiece surface vertical, leftward dip angle and rightward dip angle ion bombardment treatment is conducted in sequence; sawtooth concave grids are formed on the surface of the workpiece and are used as high-quality combination parts of the diamond-like coating; preparing to obtain a basic coating; the first side edge dip angle ion bombardment structure and the second side edge dip angle ion bombardment structure are started at the same time, leftward and rightward dip angle ion bombardment treatment is conducted on the surface of the workpiece, and sawtooth grids on the surface of the basic coating are prepared; preparing a diamond-like reinforced outer layer; and the first side edge dip angle ion bombardment structure, the vertical up-down ion bombardment structure and the second side edge dip angle ion bombardment structure are started at the same time, workpiece surface leftward, workpiece surface vertical and rightward dip angle ion bombardment treatment is conducted, and the diamond-like carbon coating with the small tip or without the tip is obtained.

This application discloses a diamond-like carbon (DLC) crystal material, its preparation method, and its application as an infrared nonlinear optical material, belonging to the field of crystal preparation technology. The DLC crystal material has a triclinic structure with the chemical formula AM5Q8; wherein A is selected from at least one of Na, K, Rb, and Cs; M is selected from at least one of Ga and In; and Q is selected from at least one of S, Se, and Te. This crystal material exhibits a frequency doubling effect 0.5-5 times that of AgGaS2 and a laser damage threshold 1-50 times that of AgGaS2, demonstrating significantly improved performance and making it a potential infrared nonlinear optical material.

The invention provides a seven-layer interpenetrating Zn-MOF material, which has a chemical general formula of [Zn (SDC) (pyan) (H2O)] n, belongs to a monoclinic system, has a space group of C < 2 > / c, and has cell parameters of a = 14.2585, b = 24.0295 (18), c = 9.5895 (6) and V = 3284.5 (4) 3. The component SDC2 <-> is obtained by removing two protons from rigid dicarboxylic acid stilbene diacid, the structure of H2SDC is as shown in a formula I, and the structure of pyan is as shown in a formula II. The prepared seven-layer interpenetrating Zn-MOF material does not contain rare earth elements, and the calculated value of the Zn element content is 9.59%. A metal-organic framework with a diamond-like network structure is adopted, a stable complex network is formed through seven-fold interpenetration, and organic components SDC2-and pyan have a large conjugate pi electronic system. The preparation conditions are mild, the yield is about 67%, and the good thermal stability is achieved; the hybrid light-emitting device HLED made of the new material can emit high-brightness blue-green light during working.

The invention provides a slip sheet and a manufacturing method thereof, a compressor and refrigeration equipment, relates to the technical field of compressors, and aims to solve the problems of poor wear resistance and poor lubricating effect of the slip sheet in the prior art. The sliding vane provided by the invention is applied to the compressor and comprises a sliding vane base body and a plurality of sliding vanes, the diamond-like supporting layer is arranged on one side of the slip sheet base body; and the lubricating layer is arranged on the surface, away from the slip sheet base body, of the diamond-like carbon supporting layer, and the lubricating layer comprises sulfur-molybdenum compounds and graphite. The diamond-like supporting layer and the lubricating layer with specific components are sequentially arranged on the surface of the sliding vane base body, the advantages of high hardness, high abrasion resistance, high corrosion resistance and the like of a diamond-like material are reserved, the friction coefficient is remarkably reduced through the synergistic lubricating effect of the sulfur-molybdenum compound and the graphite, and the super-lubricating effect is achieved.

The present invention relates to a novel sp2-sp3 hybridized Gradia carbon and its preparation method, belonging to the technical field of novel carbon materials. In the present invention, sp2 hybridized carbon is used as a carbon raw material, and under high temperature and high pressure synthesis conditions, a novel sp2-sp3 hybridized crystalline carbon whose basic structural unit is composed of a graphite-like structural unit with sp2 hybridization and a diamond-like structural unit with sp3 hybridization is prepared and named Gradia carbon. The Gradia carbon disclosed in the present invention refers to a novel class of sp2-sp3 hybridized carbon allotropes, and its crystal structure can be changed according to the different widths of the internal sp2 and sp3 structural units.

The application discloses a lock head structure and a preparation method thereof, a lock box mechanism and a container transportation system, and relates to the technical field of transportation. The lock head structure comprises a lock head body and a protective layer arranged on the surface of the lock head body. The protective layer comprises a nitriding layer, a transition layer and a diamond-like layer arranged in sequence from inside to outside. The material of the transition layer comprises at least one of Cr and CrN. The diamond-like layer has the characteristics of high hardness and low friction coefficient. On the one hand, the contact surface strength of the lock head can be strengthened, and the wear caused by long-term friction can be reduced. On the other hand, the friction force can be effectively reduced, so that the external force required for unlocking the lock box is reduced, the excessive contact force on the contact surface caused by local deformation is reduced, and the situation that the unlocking friction torque is too large and the lock box is stuck is avoided. The nitriding layer provides good support for the diamond-like layer, reduces the hardness mutation between the diamond-like layer and the base body, and reduces the probability of collapse of the diamond-like layer under extrusion.

The invention discloses a diamond-like carbon (DLC) coating and a preparation and use method thereof, and relates to the technical field of diamond-like coatings, and the preparation and use method specifically comprises the following steps: step S1, graded cleaning and ion etching pretreatment of a base material; step S2, in-situ synthesis of a Ti-TiC-SiC gradient transition layer is carried out; and S3, constructing the silicon / boron co-doped nano-composite functional layer. According to the invention, the interface stress is relieved by constructing the gradient transition layer, a soft and hard alternate nano layered structure is formed by using a periodic modulation process, and a silicon-boron co-doping strategy is combined; the problems that the coating is large in internal stress, poor in binding force and prone to failure at high temperature are effectively solved, and unification of high hardness, high toughness and excellent high-temperature wear resistance is achieved.

A boron-doped diamond, a preparation method and an application thereof, belong to the technical field of diamond synthesis. The preparation method of boron-doped diamond comprises a synthesis step: synthesizing boron-doped diamond by subjecting a raw material containing a carbon source, a boron source and a germanium-containing catalyst to a preset temperature and a preset pressure. The preset temperature and the preset pressure are both within the stable range of the diamond phase in the phase diagram, and the preset temperature is not lower than the melting point of the germanium-containing catalyst. Using the germanium-containing catalyst, under temperature and pressure conditions not lower than the melting point of the germanium-containing catalyst and satisfying the stable existence of the diamond phase, the germanium-containing catalyst can be used as a solvent catalyst for diamond, and the germanium-containing catalyst has semi-metallic properties and a diamond-like structure, so that the carbon source and the boron source can form boron-doped diamond with a high boron content.

A system may include a substrate and a coating deposited onto a surface of the substrate. The coating includes a carbon rich layer deposited on the substrate. The carbon rich layer is also characterized by a first carbon content including sp2 carbon and sp3 carbon. Further, the carbon rich layer includes one or more treated carbon regions. The one or more treated carbon regions possess an electrically conductive carbon material having a second carbon content including sp2 carbon and sp3 carbon. The second carbon content includes more sp2 carbon than the first carbon content, and may be pre-arranged and interconnected to produce an electrical circuitry with a pluralities of sensing abilities. The formed smart coating may be preferentially produced on a hard diamond-like carbon coating, such as a low friction and anti-scaling coating.

The application discloses a salt-containing chalcogenide crystal material, a preparation method thereof and application thereof as an infrared nonlinear optical material, and belongs to the technical field of crystal preparation. The salt-containing chalcogenide has a diamond-like structure; the chemical formula of the salt-containing chalcogenide is one of [A5X][M 14 Q 23 ], [A5BaX][M 18 Q 30 ], [A 13 BaX5][M 22 Q 38 ], [A 14 LiX5][M 22 Q 38 ]; wherein A is at least one selected from Na, K, Rb and Cs; X is at least one selected from Cl, Br and I; M is at least one selected from Ga and In; and Q is at least one selected from S, Se and Te. The NLO effect of the material is 0.3-10 times that of a commercial AgGaS2, the laser damage threshold is 1-50 times that of AgGaS2, and the comprehensive performance is greatly improved, so that the material is a potential infrared NLO material.

The application discloses a kind of nitrogen-doped diamond / intrinsic diamond periodic multilayer structure and preparation method thereof, belong to surface treatment technical field.The application includes: bearing matrix surface is polished and polished, and is washed and dried;Using multi-arc ion plating process, carbon target is used as reaction target material, nitrogen is input, and nitrogen-doped diamond layer is deposited on the surface of bearing matrix;Nitrogen is closed, carbon target is used as reaction target material, and intrinsic diamond layer is deposited on the surface of nitrogen-doped diamond layer;The deposition step is repeated, and nitrogen-doped diamond layer and intrinsic diamond layer are alternately stacked in the way of cyclic deposition until reaching the preset total thickness, and nitrogen-doped diamond / intrinsic diamond periodic multilayer structure is formed.By multilayer interface, stress is effectively released, crack is deflected, and the problem of large brittleness and easy peeling of traditional single-layer DLC coating is overcome, and the coating toughness is significantly improved on the basis of maintaining excellent wear-resistant and friction-reducing performance.

The invention discloses a metal-doped diamond-like carbon film on the surface of a magnesium-based material and a preparation method and application of the metal-doped diamond-like carbon film. The preparation method of the metal-doped diamond-like carbon film on the surface of the magnesium-based material comprises the following steps that (1) the magnesium-based material is selected and subjected to forming treatment; (2) carrying out surface pretreatment on the magnesium matrix material; and (3) preparation of the metal-doped diamond-like carbon film: a pulse arc source and plasma immersion ion implantation composite technology is adopted, and the prepared metal-doped, especially copper-doped diamond-like carbon film reduces the corrosion rate of a magnesium-based material in simulated body fluid by more than one order of magnitude; the binding force, antibacterial property and corrosion resistance are comprehensively superior to those of unmodified and conventional diamond-like coatings, and reliable guarantee is provided for safe and long-acting application of the degradable magnesium alloy in the medical fields of orthopedic implantation, cardiovascular stents and the like and in severe service environments of aerospace, ocean engineering and the like.

An apparatus, system, and method to modify the surface of a workpiece having an advanced material coating is provided. The advanced material coating is a diamond-like coating such as, for example, an amorphous carbon coating material. The technology provided includes a surface modification assembly that provides a photonic radiation source, such as a laser, that is tuned to the advance material such that the energy from the laser is absorbed by the surface to modify the bonds in the coating allowing a defined portion of the coating to be photodegraded and removed.

A system may include a substrate and a coating deposited onto a surface of the substrate. The coating includes a carbon rich layer deposited on the substrate. The carbon rich layer is also characterized by a first carbon content including sp2 carbon and sp3 carbon. Further, the carbon rich layer includes one or more treated carbon regions. The one or more treated carbon regions possess an electrically conductive carbon material having a second carbon content including sp2 carbon and sp3 carbon. The second carbon content includes more sp2 carbon than the first carbon content, and may be pre-arranged and interconnected to produce an electrical circuitry with a pluralities of sensing abilities. The formed smart coating may be preferentially produced on a hard diamond-like carbon coating, such as a low friction and anti-scaling coating.

The utility model discloses a diamond-like carbon film low-temperature deposition device which comprises a microwave dissociation chamber and a radio frequency dissociation chamber which are communicated with each other, the microwave dissociation chamber is communicated with a gas tank of process gas through a gas pipeline, and the microwave dissociation chamber is connected with a microwave source through a microwave waveguide. The radio frequency dissociation chamber is connected with a radio frequency port of a radio frequency power supply through a radio frequency column, and a wafer carrying table is arranged in the radio frequency dissociation chamber. According to the low-temperature deposition device for the diamond-like carbon film, dissociation of process gas is more sufficient, the content of SP3 bonds of the deposited diamond-like carbon film is increased, the hardness of the deposited diamond-like carbon film is improved, and the deposition uniformity of the diamond-like carbon film is better.

The invention discloses a high-hardness wear-resistant bearing and a machining process thereof, and relates to the technical field of bearings. The high-hardness wear-resistant bearing comprises a bearing base body, wherein the high-entropy alloy coating and the alloy-doped diamond-like carbon film are sequentially deposited on the surface of the bearing base body; the preparation method comprises the specific preparation steps that after ion etching cleaning is conducted on a bearing base body, deposition is conducted under the argon atmosphere to obtain a high-entropy alloy composite coating, and laser remelting is conducted after deposition is completed; and after the remelted bearing base body is ground and polished, an alloy doped diamond-like carbon film is deposited, and the high-hardness wear-resistant bearing is obtained. Wherein the bearing base body comprises the following chemical components in percentage by mass: 0.90 to 1.02 percent of C, 1.50 to 1.59 percent of Cr, 0.24 to 0.28 percent of Si, 0.30 to 0.38 percent of Mn, 0.04 to 0.08 percent of Ni, 0.05 to 0.10 percent of Nb, 0.05 to 0.15 percent of V and the balance of Fe and inevitable impurities.

The invention relates to the field of medical instruments, in particular to a nano diamond-like film intravascular stent and a preparation method thereof.The preparation method comprises the following steps that firstly, a base material is pretreated, then the nano diamond-like film stent is prepared through a plasma enhanced chemical vapor deposition technology, and after an equipment reaction chamber is adjusted to be in a vacuum state, the nano diamond-like film intravascular stent is prepared under argon protection; the method comprises the following steps: inputting benzene into a vacuum reaction chamber of direct-current arc discharge plasma, introducing silane gas at the same time, bombarding the generated plasma to a negative voltage cathode, and forming a diamond-like carbon film containing a silicon element on the surface when the plasma passes through a substrate material support sample, the silicon element content in the diamond-like carbon film being 15-45%; the silicon element is mainly added to form the elastic concentration gradient type diamond-like carbon film stent, so that the adhesive force, toughness, tensile strength and other physical properties of the coating are improved, the stent has good biocompatibility, and later thrombosis and restenosis after stent implantation are avoided.

The application discloses a super-thick diamond-like carbon film prepared by a double-pulse technology, and the method comprises the following steps: forming an amorphous carbon film by treating with a pulse magnetic field and a pulse electric field during carbon atom deposition on a sample surface. The amorphous carbon film prepared by the method can keep high hardness, reduce internal stress, and prevent the film layer from falling off at a large thickness.

The application discloses a color decoration method for an outer surface of an intelligent ring and a titanium alloy intelligent ring, and the method comprises the following steps: after cleaning and activating a ring shell, a titanium transition layer is deposited, and a high-hardness diamond-like carbon film bottom layer is magnetron sputtered; the carbon film bottom layer is activated by oxygen plasma, oxygen-containing functional groups are introduced, and the water contact angle is reduced to the hydrophilic range; ultraviolet curing ink containing nano alumina oxide particles and inorganic coloring pigments is coated, and a nano ceramic color layer is obtained through ultraviolet curing. Oxygen plasma activation is used to introduce oxygen-containing functional groups on the surface of the diamond-like carbon film to form a chemical bonding interface, so that the problem that the surface of the diamond-like carbon film layer is difficult to color is solved, and color diversification decoration and diamond-like abrasion resistance protection are simultaneously realized.

The application relates to the technical field of diamond-like thin films, in particular to a high-hardness diamond-like thin film coating method. The high-hardness diamond-like thin film coating method comprises the following steps: polishing, cleaning, drying, heat treatment and reducing to room temperature of a metal base material; feeding into a vacuum coating device, passing in argon through an ion source, and starting ion source etching of the base material; respectively taking titanium and titanium carbide as target materials to perform sputtering deposition to form a deposition layer with a thickness of 200-400 nm; passing in a mixed gas of argon and acetylene, and adopting a bipolar pulse bias mode to form a first coating layer with a thickness of 0.5-1.5 microns; passing in a mixed gas of argon, acetylene and silane, the flow ratio of the argon, acetylene and silane being 1-2:1-2:0.1-1, and adopting a bipolar pulse bias mode to form a second coating layer with a thickness of 1-2 microns; and naturally cooling to room temperature after heat treatment under the protection of argon.