42 results about "Low elastic modulus" patented technology

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 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.

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-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.

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 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 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.

This invention relates to a resin composition, a resin film, and their applications. The resin composition comprises the following components in parts by weight: 100 parts epoxy resin, 10-60 parts acrylic resin, 5-40 parts phenoxy resin, 10-40 parts polyester polyol resin, 40-160 parts curing agent, and 300-1000 parts inorganic filler. The resin composition provided by this invention has a low elastic modulus, a low coefficient of thermal expansion, low warpage, and good wafer filling properties. The prepared resin film does not bubble during sealing, baking, and curing, making it particularly suitable for large-size wafer-level advanced packaging.

The invention relates to the technical field of biomedical materials, in particular to a preparation method of a hyperelastic low-modulus antibacterial bone implant, which comprises the following steps: firstly, designing a porous structure model with specific pore parameters based on a three-period minimal curved surface (Gyandroid), then uniformly mixing NiTi alloy powder with a small amount of Ag powder, and preparing a porous structure model; and finally, carrying out integrated forming by adopting optimized laser powder bed melting process parameters under a protective atmosphere. The prepared bone implant has the low elastic modulus of 1.5-3.5 GPa, can be well matched with human bones, and remarkably reduces the stress shielding effect; and meanwhile, the superelasticity of the NiTi alloy is reserved, and the alloy has the capability of recoverable deformation under the strain of 4%. Besides, by adding the Ag element, the antibacterial rates of the implant to staphylococcus aureus and escherichia coli exceed 90%, the material is endowed with excellent antibacterial performance on the premise of not excessively changing the matrix tissue, and the clinical safety and service reliability of the implant are effectively improved.

The present application relates to the technical field of additive manufacturing, and particularly relates to a method for preparing NiTiFe alloy with low elastic modulus based on additive manufacturing. The method is based on the layer-by-layer additive manufacturing principle to perform additive manufacturing on target metal powder, which can not only provide excellent surface quality and geometric precision, but also quickly realize intelligent integrated forming of complex workpieces compared with traditional metallurgical technology; the set raw material ratio can not only meet the critical defect concentration of low elastic modulus in the material, but also Fe atoms can be used as heterogeneous nucleating agents to form unique fine-grained structure in the non-equilibrium solidification process under suitable forming parameters, greatly improving the mechanical properties of the material and achieving the advantages of synergistically considering the material characteristics; the atomic relaxation generated after Fe element is added to NiTi can not only produce point defects required for low elastic modulus, but also produce dislocations and precipitated phases and other multi-dimensional defects at the matrix and grain boundaries.

According to an aspect, a stretchable device includes: a resin base member; an array layer provided to the resin base member; and a pair of resin layers that sandwich the resin base member and the array layer from both sides in a thickness direction in which the resin base member and the array layer are disposed, the resin layers being made of resin having lower elastic modulus than that of the resin base member. The resin base member includes: bodies separated from each other in a direction orthogonal to the thickness direction; and hinges coupling the bodies while meandering. The array layer includes functional elements overlapping the bodies when viewed in the thickness direction. The resin layers are provided with first rigid parts having higher elastic modulus than that of the resin that forms the resin layers. The first rigid parts overlap the bodies when viewed in the thickness direction.

The application provides a heterogeneous alloy rod and a preparation method thereof, and belongs to the technical field of metal materials. The heterogeneous alloy rod is prepared by using a solid-liquid composite casting forming method, casting high-elasticity modulus metal / low-elasticity modulus magnesium alloy in a specific casting mold, and regulating the microstructure by specific deformation and heat treatment. The heterogeneous alloy rod with high-elasticity modulus is prepared. The solid-liquid composite casting can obtain a perfect original interface, has no oxidized inclusion and good interface combination, can prepare a large-size rod, and has simple and easy operation process, and can meet the demand of industrial application.

The present application relates to a multi-material composite layered bead structure and design method, and belongs to the field of tire structure and manufacturing method thereof. The structure comprises a bead body; the bead body is composed of a plurality of composite layers stacked, and the plurality of composite layers contain at least two material layers with different elastic modulus; the plurality of composite layers are stacked at least along one direction of a radial direction of a cross section, a lateral direction parallel to a bottom side of the cross section, or a third direction perpendicular to a circumferential direction and the radial direction; at least one low elastic modulus material layer in the plurality of composite layers is actively arranged in a stress concentration area or a geometric shape mutation area of the cross section of the bead which is identified in advance by finite element simulation analysis. The present application can solve the technical problems of uneven stress distribution, insufficient multidirectional stiffness, large weight and limited fatigue life caused by homogeneous material and simple geometric structure in the prior art.

The invention relates to a storage container for a plate-shaped body. A storage container (11) for storing a plate-like laminate (1) formed by laminating a plurality of glass plates (G) is provided with a placement surface (18) on which the plate-like laminate (1) is placed, and a buffer sheet (17) provided on the placement surface (18). The buffer sheet (17) has, in order from the placement surface (18) side, a hard layer (31), an intermediate elastic layer (33) comprising an elastic material, and a surface elastic layer (35) comprising an elastic material having a lower elastic modulus than the intermediate elastic layer (33).

The invention discloses a construction method and application of a calculation model of varus knee joint contact stress, and the method comprises the steps: setting a femur and femur cartilage of a knee joint as first elastomers, setting a tibia and tibia cartilage as second elastomers, respectively setting a high-elasticity-modulus layer and a low-elasticity-modulus layer, applying a normal force to the high-elasticity-modulus layer and introducing a modification coefficient, obtaining the corrected contact radius and peak pressure, and constructing a dynamic equilibrium equation of the introversion knee joint; adding meniscus parameters, and constructing a peak contact stress model of double contact areas of the introversion knee joint; constructing a strain function for the low-elastic-modulus layer by adopting a Yeoh model to obtain the elastic modulus of the meniscus material during large strain; inputting the image data, the introversion angle and the load parameters of the subject into the mathematical model of the peak contact stress of the knee joint, comparing the obtained analytical solution with the numerical solution of the finite element model, and if the analytical solution is within a preset range, proving that the mathematical model is correct, and applying the mathematical model to the optimization application of the artificial meniscus and the knee joint prosthesis.

To provide a curable composition or the like capable of obtaining a cured product having high thermal conductivity and low elastic modulus.SOLUTION: A curable composition containing (A) a thermally conductive filler, (B) a silsesquioxane compound, and (C) a liquid polythiol compound, wherein when the component (B) does not contain an epoxy group-containing silsesquioxane compound having an epoxy group, the curable composition further contains (D) an epoxy resin, and when the component (B) contains an epoxy group-containing silsesquioxane compound, the curable composition contains or does not contain (D) an epoxy resin.SELECTED DRAWING: None

The present disclosure addresses the problem of providing a resin composition which gives cured objects having high thermal conductivity, lower elastic modulus, and high adhesiveness to metals. The resin composition comprises an epoxy resin (A), a hardener (B), a polyisoprene compound (C), and inorganic fillers (D). The polyisoprene compound (C) has at least one functional group selected from the group consisting of acid anhydride groups and a carboxy group. The inorganic fillers (D) comprise a silica filler (D-2) and a thermally conductive filler (D-1) having a higher thermal conductivity than the silica filler (D-2). The content of the thermally conductive filler (D-1) is 60 mass% or higher but less than 100 mass% with respect to the sum of the silica filler (D-2) and the thermally conductive filler (D-1).

This invention claims protection for a novel gradient artificial vertebra and its design method, belonging to the technical field of medical devices. It mainly includes a biomimetic porous structure design method, an axial gradient design method, and a radial gradient design method. First, simulating the in vivo loading conditions of a spinal vertebra, a density gradient design is performed along the axial direction. This reduces the relative density of the bone contact surfaces at both ends to lower the elastic modulus, weaken the stress shielding effect, and promote bone ingrowth. Simultaneously, the relative density of the middle portion is increased to reduce stress concentration and improve specific strength. Then, a radial gradient design is performed, increasing the relative density on the inner side to enhance central mechanical properties. Finally, the gradient designs in both directions are integrated into the final artificial vertebra, resulting in an artificial vertebra with reduced stress concentration, increased specific strength, reduced stress shielding at the bone contact surfaces, promoted bone ingrowth, and enhanced fatigue performance. This method is applicable to most devices requiring reduced stress concentration and enhanced fatigue performance.

An embodiment of a conveyor belt is disclosed. In one embodiment, the conveyor belt comprises: a middle region having embedded steel cords extending along a longitudinal direction of the conveyor belt; and side regions disposed laterally on either side of the middle region. Each side region has embedded non-steel reinforcing members extending along a longitudinal direction of the conveyor belt. The non-steel reinforcing members have a lower elastic modulus than the steel cords to allow the side regions to absorb in-use stress(es) induced by edge tension through elastic deformation. Related methods of forming a conveyor belt and use of same are also disclosed. A related conveyor belt system is also disclosed.

The invention discloses a high-strength low-modulus biomedical titanium alloy and a preparation method thereof.The titanium alloy is prepared from, by mass, 10%-25% of Zr, 8%-16% of Mo, 1%-4% of Sn, 0.5%-2% of Fe, 0.01%-0.2% of C and the balance Ti, and the titanium alloy contains precipitated phase titanium carbide. By optimizing the proportion of zirconium, molybdenum, tin and iron elements, the beta titanium alloy with the low elastic modulus is obtained, meanwhile, the characteristic that the solubility of carbon in a matrix can be reduced through the molybdenum element is utilized, a heat treatment process is matched with aging strengthening to regulate and control separation of TiCx, precipitation strengthening is achieved, and the strength and hardness of the material are further improved while plasticity is maintained. Compared with a traditional material, the prepared biomedical titanium alloy better meets the performance requirements of clinical implants in the aspects of modulus, strength and ductility.

The invention relates to a cement composition, and belongs to the technical field of oil and gas reservoir well cementation. The cement composition comprises the following components in parts by mass: 100 parts of oil well cement, 5-8 parts of a tough material, 8-15 parts of a flexible sealant and 0.4-0.8 part of a viscosity reducer, the tough material is composed of nano latex powder, linear fibers, carbon nanotubes and calcium sulfate whiskers; the flexible sealant is prepared from a vinyl chloride copolymer, nano silicon dioxide and water; the viscosity reducer is a polycarboxylic acid water reducer. According to the cement composition, by adopting the tough material and the flexible sealant, the sedimentation stability and the mechanical property of set cement are remarkably improved, and by adopting the viscosity reducer, the flowability and the viscosity of cement paste can be improved, so that the prepared cement paste not only has good construction performance, but also has the characteristics of high strength and low elastic modulus.