81 results about "Low elastic modulus" patented technology

The invention discloses a high-elastic-modulus and high-ductility cement-based composite material for assembly type component joint connection and a preparation method thereof.According to the scheme, the composite material is prepared from, by mass, 500-700 parts of cement, 360-504 parts of granulated blast furnace slag, 120-168 parts of fly ash, 120-168 parts of silica fume, 323-462 parts of quartz sand and 377-539 parts of iron ore sand. The concrete is prepared from the following components in parts by weight: 176 to 246 parts of water, 14 to 18 parts of composite fiber, 5.5 to 7.5 parts of a water reducing agent, 30 to 42 parts of an expanding agent, 5 to 7 parts of a binder, 0.5 to 0.7 part of a retarder, 1 to 1.4 parts of a deflocculating agent, 0.15 to 0.21 part of a defoaming agent and 0.5 to 0.7 part of a rheological agent. Furthermore, a corresponding step-by-step stirring preparation process is matched, so that the accurate regulation and control of the material performance are effectively realized. According to the invention, the problems of poor working performance, low tensile strength, insufficient elastic modulus and the like of the traditional high-ductility concrete (ECC) in assembly type component node connection can be solved, and the strict requirements of assembly type nodes on strength, construction and deformation performance can be met.

The invention relates to a display module and a display device, and the display module comprises a display panel which is located in a bending region and a non-bending region; the supporting structure is arranged on one side, in the thickness direction, of the display panel, the supporting structure comprises a first supporting layer and a second supporting layer, and the first supporting layer and the second supporting layer are adjacently arranged in the first direction; at least part of the first supporting layer is located in the bending area, and at least part of the second supporting layer is located in the non-bending area. According to the display module, at least part of the first supporting layer with high elastic modulus corresponds to the bending area, so that local reinforced support with high deformation resistance is provided for the bending area which is prone to collapse when the display module is in the unfolded state; and at least part of the second supporting layer with low elastic modulus corresponds to the non-bending area, so that a flexible buffer area easy to compress and deform is provided for the non-bending area needing to absorb material redundancy when the display module is in the bending state.

An optical fiber cable comprises at least one hollow-core fiber having a tight buffer formed around the hollow-core fiber. The tight buffer has a multi-layer construction whereby an inner layer is tightly formed around an outer surface of the hollow-core fiber and an outer layer is tightly formed around the inner layer. The inner layer is formed of a soft material having a low elastic modulus, whereas the outer layer is formed of a material having a higher elastic modulus than the inner layer.

The application discloses a high-elasticity-modulus magnetic memory alloy prepared based on a liquid die forging method and a preparation method thereof, and belongs to the technical field of magnetic memory alloy preparation. 51‑x Ni 25 Ga 24 Gd x , wherein x=0.4-0.6. The preparation method of the high-elasticity-modulus magnetic memory alloy prepared based on the liquid die forging method comprises the following steps: taking nickel powder, manganese powder, gallium powder and gadolinium powder according to atomic percentage, ball-milling and mixing, and then sequentially performing liquid die forging and pressure forming to obtain the high-elasticity-modulus magnetic memory alloy. The application adopts trace rare earth element Gd element to replace Mn element, and adopts a liquid die forging technology to prepare a high-performance magnetic memory alloy. The magnetic memory alloy has the characteristics of high elastic modulus and small brittleness, and solves the problems of large brittleness and low elastic modulus of the existing Mn2NiGa magnetic memory alloy.

The application discloses a stress fatigue resistant titanium alloy for spectacle frame structural members and a preparation method thereof, relates to the technical field of titanium alloy materials, and provides the stress fatigue resistant titanium alloy, which is composed of the following components in mass percentage: Al 5.5-6.5%, V 3.5-4.5%, Ta 0-2.5%, Mg 0.1-0.2%, O 0.06-0.12%, N 0.05-0.1%, Fe 0.02-0.24%, Re 0.15-0.5% and Rh 0.15-0.5%, and the balance is Ti and inevitable impurities. The common action of the added elements Re and Rh restrains the diffusion of Al, Ta and V, and obviously refines the alpha phase, the grain size of which is about 5-20 mu m, the strength of the primary alpha phase and the transformed beta phase is well matched (the difference is 65.76-75.87 HV), and the probability of the fatigue crack along the transformed beta phase is reduced, so that the alloy has good stress fatigue resistance. The stress fatigue resistant (alpha+beta) type dual-phase titanium alloy provided by the application has low elastic modulus, the strength can reach 1098 MPa, the fatigue life can reach 27088 times, and the alloy has good stress fatigue resistance and can be used for the connecting structural members of spectacle frames.

It provides a preparation method of solid-liquid composite casting in a specific mold to produce the heterostructured metallic bars composed of high elastic modulus metal and low elastic modulus Mg alloy. Subsequently, the microstructure of heterogeneous Mg alloys bars is adjusted by the specific deformation and heat treatment. Heterogeneous Mg alloys bars without oxide inclusions and with good interfacial bonding were prepared through this method. The improvement of elastic modulus is obtained by tailoring the heterogeneous microstructure.

The invention relates to a biomedical zirconium alloy with ultralow elastic modulus and a preparation method thereof. The alloy comprises the following three alloy elements in percentage by mass: 71 to 80 weight percent of Zr, 20 weight percent of Nb, 1 to 9 weight percent of Ta and the balance of inevitable impurities. In the preparation process, by regulating and controlling the Ta content and combining three-stage solid solution-aging quenching heat treatment, the beta-Zr phase is effectively stabilized, and collaborative optimization of the elastic modulus and the strength of the alloy is achieved. According to the alloy obtained through the method, along with the increase of the Ta content, the tensile strength of the alloy is in the trend that the tensile strength is firstly increased and then decreased, and the elastic modulus is firstly decreased and then increased; when the Ta content is optimal, the lowest elasticity modulus of the alloy can reach 15.2 GPa, the tensile strength peak value can reach 861 MPa, the stress shielding effect is remarkably inhibited, and the mechanical matching property with bone tissues and the long-term stability of implants are greatly improved.

To provide an apatite-zirconium oxide composite having high mechanical strength and low elastic modulus, a restorative material, a medical device, and a method for producing a calcium phosphate-carbon atom-zirconium oxide composite.SOLUTION: A calcium phosphate-carbon atom-zirconium oxide composite comprises tricalcium phosphate, apatite represented by formula (1): Cas(PO4)t(X)u, and carbon atoms, and further comprises zirconium oxide, wherein in formula (1), X represents at least one selected from the group consisting of OH and CO3, s represents a number of 8 to 10, t represents a number of 4 to 6, and u represents a number of 1 to 2.SELECTED DRAWING: Figure 1

The invention discloses a high-strength low-elasticity-modulus titanium alloy sheet and a preparation and processing method thereof, and belongs to the technical field of titanium alloy metal processing. The alloy component is TiaZrbVcAld, a is larger than or equal to 46 and smaller than or equal to 55, b is larger than or equal to 26 and smaller than or equal to 32, c is larger than or equal to 3 and smaller than or equal to 8, d is larger than or equal to 12 and smaller than or equal to 20, and a + b + c + d = 100. The method comprises the following steps: 1, melting an alloy raw material by adopting a vacuum consumable arc melting or induction suspension melting method; 2, the obtained cast ingot is subjected to cogging forging and circulating forging; 3, the alloy forged plate is preheated and rolled at the temperature of 1000 DEG C, and a primary rolled plate is obtained; 4, preheating and rolling the primary rolled plate at 900 DEG C to obtain a secondary rolled plate; 5, the secondary rolled plate is preheated and rolled at the temperature of 900 DEG C and then rapidly cooled, and a tertiary rolled plate is obtained; step 6, trimming and descaling the third rolled plate to obtain a semi-finished product with a bright surface and without burrs; and 7, the semi-finished plate is subjected to cold rolling, and the titanium alloy sheet with the ultimate tensile strength higher than 1200 MPa and the elastic modulus lower than 70 GPa is obtained. According to the method, the thin plate with the performance characteristics of high strength and low elastic modulus can be obtained.

A display device, comprising: a display panel includes a plurality of rigid areas RA, having a first, higher elastic modulus and a malleable area SA having a second, lower elastic modulus, the malleab

The invention discloses a medium-entropy alloy anti-corrosion coating and a preparation method thereof, and belongs to the technical field of anti-corrosion coatings, a Zr transition layer is deposited on a magnesium alloy substrate, and the bonding strength of the medium-entropy alloy coating is improved by establishing a gentle mechanical property gradient. The prepared medium-entropy alloy coating is a solid solution of a single-phase face-centered cubic structure, has good plastic deformation capacity and is not prone to cracking or peeling off from the surface of the magnesium alloy when subjected to large external force. According to the medium-entropy alloy coating prepared through the method, the low-elasticity-modulus element combination in the medium-entropy alloy coating and a magnesium alloy matrix are higher in coordinating deformation capacity, and compared with a unit metal coating, the medium-entropy alloy coating is higher in hardness and better in corrosion resistance.

This invention relates to a breathable lithium-ion battery module structure, including fasteners, front and rear wall panels, a silicon anode lithium-ion battery, a pull rod, and a breathing plate. The silicon anode lithium-ion battery is fixed by the pull rod, fasteners, and front and rear wall panels. The breathing plate is placed between the silicon anode lithium-ion battery and the front wall panel. The breathing plate is a composite material structure, combining metal and polymer materials to achieve a structure with low elastic modulus and high elastic deformation capability. The breathing plate integrates a thermistor for monitoring temperature information at characteristic locations of the battery pack.

This invention discloses a high-precision flow field sensor and measurement method with a multi-stage flagella structure inspired by mosquito antennae. The biomimetic flow field sensor consists of a central rigid rod and two multi-stage cantilever sensors on both sides. The cantilever sensors are composed of a flexible bottom layer, a flexible top layer, and a piezoresistive flexible sensor. The central rigid rod provides fixation and support for the multi-stage cantilever sensors. The flexible bottom layer is made of a high-elastic-modulus material and mainly senses changes in airflow in the surrounding flow field, oscillating with the airflow. The flexible top layer is made of a low-elastic-modulus material and mainly enhances the sensitivity of the rigid front section to changes in airflow. The piezoresistive flexible sensors are distributed on a secondary cantilever beam composed of the flexible bottom and upper layers. The oscillation of the secondary cantilever beam causes deformation of the two layers of piezoresistive flexible sensors, thereby changing the sensor resistance value. By comprehensively evaluating the resistance change of the piezoresistive flexible sensors, information such as the flow direction, flow rate, and velocity of the airflow in the flow field can be accurately measured.

This invention discloses a high-temperature resistant, high-strength, low-elasticity, high-density cementing material, relating to the field of cementing materials technology in oil and gas development. It comprises the following components by weight: 100 parts oil well cement; 35-40 parts strength stabilizing material; 50-300 parts density regulator; 0.3-0.5 parts high-strength toughening material; 0.8-1.5 parts flexible sealant; 0.2-0.4 parts suspension stabilizer; 0.5-0.8 parts dispersant; 2-3 parts fluid loss reducing agent; and 0.8-2.0 parts retarder. The oil well cement is of grade G and grade D. The mixed oil well cement has a cement mass ratio of 8:2. The high-strength toughening material is a mixture of modified carbon fiber, modified polyether ether ketone fiber, modified polyether sulfone fiber, β-type silicon carbide whiskers and potassium hexatitanate whiskers in a mass ratio of 40-60:15-25:15-25:5-8:2-4. The flexible sealant is a mixture of high-temperature resistant modified polycarbonate and sulfonated asphalt in a mass ratio of 8:2. This mixture can achieve self-toughening of the cement stone, so that the prepared cement slurry not only has good construction performance, but also has the characteristics of high strength and low elastic modulus under high temperature conditions.

To provide a copper sintered compact with a low elastic modulus and its manufacturing method.SOLUTION: [1] A copper sintered compact has a tensile elastic modulus of 35 GPa or less. [2] A method for manufacturing a copper sintered compact comprises a step of burning a dispersion D containing copper nanoparticles A and the following polymer B at a burning temperature of 240°C or more and 300°C or less while applying a pressure of 0.1 MPa or more and 40 MPa or less. The polymer B: A polymer comprising constitutional units derived from a monomer (b-1) having carboxyl groups, and constitutional units derived from a monomer (b-2) having polyalkylene glycol segments. [3] A copper sintered compact is obtained by the manufacturing method described in [2]. [4] A conjugate comprises a first member, a second member, and a copper sintered compact described in [1] or [3] for bonding the first member and the second member. [5] A method for manufacturing a conjugate comprising a first member, a second member, and a copper sintered compact joining the first member and second member comprises: a step of applying a dispersion D containing copper nanoparticles A and the following polymer B between the first member and the second member; and a step of burning the dispersion D at a burning temperature of 240°C or more but not exceeding 300°C while applying a pressure of 0.1 MPa or more but not exceeding 40 MPa.SELECTED DRAWING: None

The invention discloses a high-elasticity amorphous alloy for music box tablets and a preparation method of the high-elasticity amorphous alloy. The amorphous alloy comprises Zr, Ti, Cu, Ni and Be elements. The sum of the atomic percent of all the elements is 100%, and the Zr accounts for 38%-55%, the Ti accounts for 8%-20%, the Cu accounts for 7.5%-15%, the Ni accounts for 5%-10%, and the Be accounts for 18%-30%. The Zr-based amorphous alloy prepared through the method has the low elastic modulus and damping ratio, the high elastic limit and the excellent corrosion resistance, when the Zr-based amorphous alloy is used for music box tablets, the sound key oscillation starting force can be reduced, and matched devices are prevented from being damaged; the allowable deformation of the sound key is improved, and the anti-deformation life is prolonged; vibration loss is reduced, pure timbre is ensured, and the service life of the music box is obviously prolonged; during preparation, the vibration frequency of the sound keys is simulated and optimized through finite elements, the sound sheet structure is designed through CAD, rapid solidification forming is achieved in cooperation with a copper mold suction casting process, the process is simple and convenient, and the yield is high.

This invention relates to the field of sensor technology and discloses a strain gauge device that improves the sensitivity and accuracy of strain measurement. The strain gauge device comprises three modules—module A, module B, and module C—stacked vertically. Module B, located in the middle, is the core of the structure and directly contacts the object being measured; module B is made of a low-elastic-modulus intermediate material. Modules A and C are located on either side and symmetrically arranged. The dimensions of module C are the same as those of module A. The strain gauge device provided by this invention reduces the influence of lateral strain through an overhead iron block technology, enhances the detection capability of resistance changes, reduces errors caused by surface unevenness, and maintains high measurement sensitivity. Furthermore, the replaceable intermediate material technology enables the strain gauge to be reused, offering advantages in reducing cost and resource consumption.

To provide a resin composition for forming circuit board by which a cured product having excellent low elastic modulus and low linear expansion coefficient is obtained.SOLUTION: A resin composition for circuit board contains (A) thermosetting resin, (B) stress-reducing agent, and (C) inorganic filler, where the thermosetting resin (A) is one or more kinds of resin selected from the group consisting of epoxy resin and benzoxazine resin, the stress-reducing agent (B) includes one or more kinds selected from the group consisting of (B1) urethane acrylate, (B2) epoxidized polybutadiene, and (B3) silicone particles, and in a cured product obtained by curing the composition, a domain phase of the stress-reducing agent (B) is formed in a continuous phase made of the thermosetting resin (A).SELECTED DRAWING: None

The application provides a phosphorus-containing aromatic polyester and a thermosetting resin composition thereof, and a structural formula of the phosphorus-containing aromatic polyester is shown as formula I. The phosphorus-containing aromatic polyester has good solubility, low dielectric, high flame retardancy, low shrinkage during curing, low elastic modulus at high temperature and other performances.

The application discloses an optical film with high stability and low elastic modulus and a preparation method thereof, and relates to the technical field of optical films and preparation. The optical film is an ABA type three-layer co-extrusion polyester film, and the A layer is a surface layer and the B layer is a core layer. The A layer is a low-melting-point polyester blend A, which is composed of high-viscosity polyester PET and low-melting-point polyester PETG in a percentage by weight. The B layer is a low-melting-point polyester blend B, which is composed of low-melting-point polyester PETG, high-viscosity polyester PET and polyester PET in a percentage by weight. The optical film is prepared through the steps of pre-blending, drying and crystallizing, extruding after melt mixing, longitudinal and transverse stretching, and heat setting. The application has the advantages that PETG and PET can be blended to crystallize and reduce the melting point, so that the melting point of the blended system is reduced; the toughness of the optical polyester film is improved, and the optical polyester film has high mechanical properties and good optical properties.

To provide a resin composition for forming circuit board by which a cured product having excellent low elastic modulus and low linear expansion coefficient is obtained.SOLUTION: A resin composition for circuit board contains (A) one or more kinds of component selected from a group consisting of urethane acrylate and phenyl-modified silicone resin powder, and (B) one or more kinds of thermosetting resin selected from a group consisting of epoxy resin, benzoxazine resin, cyanate resin, bismaleimide triazine resin, maleimide resin, phenol resin, polyimide resin, and melamine resin, and in a cured product obtained by curing the resin composition for circuit board, a domain phase of the component (A) is formed in a continuous phase of the thermosetting resin (B).SELECTED DRAWING: None

To provide a propenyl-based resin, resin composition, and cured product thereof that can achieve a high degree of both excellent heat resistance and low modulus of elasticity during curing. [Solution] General formula (1) (where M 1 and M 2 Each of these independently represents a divalent organic group, where n is an integer from 0 to 9, m is an integer from 1 to 10, and n+m is an integer from 1 to 10, R 1 and R 2 Each of these is independently a predetermined aromatic hydrocarbon group having a propenyl group. A propenyl resin containing a propenyl compound represented by ). TIFF2026076048000028.tif40170

The application discloses a kind of high-strength low elastic modulus Ti-Nb-Zr biomedical titanium alloy and preparation method thereof, alloy ingot is prepared using vacuum melting, and solid solution quenching, titanium alloy plate is prepared using cold working large deformation.The biomedical titanium alloy preparation method of the application, control cold working deformation rate reaches more than 90%.The alloy obtained using the method of the application has low modulus, high strength, superelasticity, shape memory, damping characteristics, corrosion resistance and high biocompatibility.The modulus of the titanium alloy obtained by the application is similar to the modulus of human bone, and can be used as a bone graft or medical device.The Ti-Nb-Zr alloy prepared using the method of the application has excellent performance, the tensile strength is not less than 1000MPa, the elastic modulus is not higher than 60GPa, and the superelastic strain is not less than 2.2%.

The invention discloses a self-closing valve, a valve deck and intelligent machining equipment of the valve deck, and relates to the technical field of self-closing valves.The self-closing valve comprises a valve body, a valve rod and a multi-stage elastic adjusting mechanism, and the multi-stage elastic adjusting mechanism is composed of a first-stage elastic unit, a second-stage elastic unit and a third-stage elastic unit which are axially connected in series; the multi-stage elastic adjusting mechanism comprises a hierarchical guide rod assembly, a hierarchical spring system and a laminated connecting piece structure, and full-working-condition pressure self-adaptive regulation and control are achieved through a hierarchical triggering mechanism of the multi-stage elastic adjusting mechanism. The silica gel sealing disc and the valve rod limiting groove are precisely matched to form axial linear constraint, and gradient response characteristics of three-level differential elastic modulus springs are combined, specifically, deformation is dominated by the low-elastic-modulus spring in the low-pressure stage, and a composite rigidity system is formed through intervention of the middle-elastic-modulus spring in the middle-pressure working condition; and in a high-pressure state, rigid protection is provided while the sealing performance is ensured by virtue of a double locking mechanism of a high-elasticity-modulus spring and a guide rod hard limit.

The utility model discloses the spinal interbody fusion cage of adjustable elastic modulus relates to the orthopedics equipment field, including roof and bottom plate, the roof corresponds with bottom plate, the bottom plate upside fixedly connected with installation component, the roof is installed with a plurality of high elastic modulus pad and low elastic modulus pad through installation component between bottom plate, the installation component includes the locating plate of vertical fixed connection in the bottom plate upside, is established in a plurality of vertical locating slot on the locating plate. Advantageous effects lie in: through the quantity of adjusting high elastic modulus pad and low elastic modulus pad can adjust the elastic modulus of this fusion ware, increase the quantity of high elastic modulus pad, reduce the quantity of low elastic modulus pad, can increase the elastic modulus of this fusion ware, if reduce the quantity of high elastic modulus pad, increase the quantity of low elastic modulus pad, can reduce the elastic modulus of this fusion ware, make this fusion ware can satisfy different patient demand.

A foldable electronic device may include a flexible display panel and a display cover layer that fold along a bend axis. The display cover layer may be formed from one or more glass layers. For example, a thin glass layer may form an outer surface of the display and may extend across the bend axis. A non-Newtonian material may be interposed between the glass layer and the display panel to help protect the display panel from damage when the glass layer is impacted by an external object or a drop event. The non-Newtonian layer may have a low modulus of elasticity at low strain rates (e.g., during folding and unfolding) and a high modulus of elasticity at high strain rates (e.g., when an object impacts the display) to prevent the cover glass from puncturing the underlying display layers.

The invention discloses a titanium-zirconium-niobium-based alloy with an antibacterial function as well as a preparation method and application of the titanium-zirconium-niobium-based alloy. The titanium-zirconium-niobium-based alloy comprises the following chemical components in percentage by atom: 33.5-39.5% of zirconium, 33.5-39.5% of niobium and the balance of titanium. 15 to 25% of niobium; 1-2% of iron; the doping element is a mixture of copper and gallium, and the balance is titanium and inevitable impurities. According to the invention, a middle-entropy alloy system taking Ti-Zr-Nb as a core is taken as a design basis, and beta-phase stability and an antibacterial function are optimized by accurately regulating and controlling the chemical proportion of Nb and Fe and synergistically adding Cu / Ga. In addition, the alloy provided by the invention is an alloy material with a single centered cubic (BCC) beta phase structure, and good matching of low elastic modulus (less than or equal to 60 GPa) and high yield strength (more than or equal to 650 MPa) is realized.

A pressure vessel configured to store fluid is provided. The pressure vessel includes a liner for the pressure vessel. The liner includes a plurality of body portions and a plurality of connection portions. Each of the body portions is in the form of an elongated tubular body. Each of the connection portions connects two adjacent ones of the body portions in series, and is configured to be bent to fold the body portions. The connection portions include at least one low-elastic-modulus connection portion that is separate from the adjacent body portions and that has a lower elastic modulus than the adjacent body portions.

This invention relates to the field of heavy-duty bearing design and application technology, specifically to a bearing creep control method and device based on variable interface performance. The device comprises an annular multifunctional variable interface layer between the bearing outer ring and the bearing housing. This interface layer is composed of stable anchoring units with high elastic modulus and high friction coefficient, and directional slip triggering units with low elastic modulus and low friction coefficient, periodically and alternately distributed along the circumference. The number of circumferential partitions is coprime to the number of bearing rollers, enabling directional, step-like triggering of controlled micro-creep. The surface of the interface layer is provided with a checkerboard or spiral groove network filled with a functional medium to achieve damping dissipation, lubrication protection, and stiffness regulation. An integrated grating displacement monitoring component is also included for graded judgment of creep state.

A deployable reflector system comprising a support structure and a reflector surface connected to the support structure. The reflector surface comprised of a carbon nanotube elastomer composite with high bending flexibility out-of-plane and a low modulus of elasticity. The support structure configured to transition from a compact stowed configuration to a larger deployed configuration.