C22C32/0031

ALLOY WIRE ROD AND PREPARATION METHOD AND APPLICATION THEREOF

The present disclosure relates to an alloy wire rod and a preparation method and application thereof. The alloy wire rod is made of a tungsten alloy, and the tungsten alloy contains tungsten and an oxide of cerium. The alloy wire rod has a wire diameter of equal to or less than 100 m; and the alloy wire rod has a tensile strength of greater than 3,800 MPa. The wire diameter of the alloy wire rod is equal to or less than 60 m; the diameter of a push-pull core wire of the alloy wire rod is less than 350 m; the elastic ultimate strength of the alloy wire rod is greater than 2,500 MPa; and the tensile strength of the alloy wire is greater than 4,200 MPa. In the present disclosure, the alloy wire rod having ultra-high strength and good toughness is obtained by doping an oxide of cerium.

Cesium tungsten bronze-based self-cleaning nano heat-insulation coating material and preparation method thereof

The present disclosure provides a cesium tungsten bronze-based self-cleaning nano heat-insulation coating material, and method of preparing the same. Cesium tungsten bronze nanoparticles are prepared by hydrothermal method using WCl.sub.6 and CsOH.5H.sub.2O as raw materials, PVP as a surfactant and acetic acid as an acid catalyst. TiO.sub.2 nanoparticles are prepared from TiCl.sub.4. Subsequently ball milling and dispersing of the cesium tungsten bronze nanoparticles, the TiO.sub.2 nanoparticles, and a silane coupling agent with water to obtain an aqueous slurry containing cesium tungsten bronze/TiO.sub.2 composite particles is performed. The concentration of the aqueous slurry containing cesium tungsten bronze/TiO.sub.2 composite particles is adjusted to obtain a self-cleaning nano heat-insulation coating material.

Uniformly controlled nanoscale oxide dispersion strengthened alloys

A process of forming an oxide dispersion strengthened alloy, comprises distributing an alloy powder on a platform; applying a uniform nanometer-scale metal oxide onto the alloy powder; applying an energy beam onto the alloy powder and the uniform nanometer-scale metal oxide; and forming an oxide dispersion strengthened alloy.

COMPOSITE POWDER AND METHODS THEREOF

The present disclosure relates to composite powders and methods for forming said composite powders thereof. In particular, the present disclosure relates to composite powder comprising nanoparticles on a surface of a metal particle and methods for forming said composite powders. The present disclosure also relates to composites obtained according to methods as defined herein and a method of forming said composite.

Methods of making metal bond abrasive articles and metal bond abrasive articles

Methods of making metal bond abrasive articles via powder bed jetting are disclosed. Metal bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.

Machinable metal matrix composite and method for making the same

A metal matrix composite comprises and/or consists of a uniform distribution of calcined ceramic particles having an average particle size of between 0.30 and 0.900 microns and a metal or alloy uniformly distributed with the ceramic particles and wherein the ceramic particles include oxides of two separate metals selected from the group consisting of Al, Li, Be, Pb, Fe, Ag, Au, Sn, Mg, Ti, Cu, and Zn, and in which said ceramic particles comprise at least 15 volume percent of the metal matrix sintered together and wherein said metal-matrix being machinable with a high speed steel (HSS) bit for greater than about one minute without excessive wear to the bit.

Low Thermal Stress Engineered Metal Structures
20200331064 · 2020-10-22 ·

A structured multi-phase composite which include a metal phase, and a low stiffness, high thermal conductivity phase or encapsulated phase change material, that are arranged to create a composite having high thermal conductivity, having reduced/controlled stiffness, and a low CTE to reduce thermal stresses in the composite when exposed to cyclic thermal loads. The structured multi-phase composite is useful for use in structures such as, but not limited to, high speed engine ducts, exhaust-impinged structures, heat exchangers, electrical boxes, heat sinks, and heat spreaders.

COMPOSITE CONTAINING HOLLOW CERAMIC SPHERES AND PREPARATION METHOD OF COMPOSITE

A composite containing hollow ceramic spheres and a preparation method are provided. The composite includes an impact-resistant gradient complex part containing a hollow ceramic sphere complex, prepared by using a 3D printing method and a hollow ceramic sphere-high polymer complex dielectric material obtained in a blending and fusing way. The obtained composite has the characteristics of relatively low density and high strength. The impact-resistant gradient complex part is a layered complex, the composition and properties of the complex may be regulated in a direction vertical to a layer according to a design, for example, mechanical properties of the complex are transitioned from soft to hard to form gradient change by regulating the change of the composition, and meanwhile, the thickness among layers with different properties is accurately controlled as required. The dielectric, heat conducting and mechanical properties of the hollow ceramic sphere-high polymer complex dielectric material are greatly improved.

Component with a ceramic base body having a conduit and a fastening element and method

One aspect relates to a component comprising i. a base body having a first component surface and a further component surface, the base body comprising a ceramic at least to an extent of 50 wt %, based on the total weight of the base body; ii. at least one electrical conduction element, the at least one electrical conduction element comprising a metal at least to an extent of 51 wt %, based on the electrical conduction element, and the at least one electrical conduction element passing through the entire base body from the first component surface to the further component surface; iii. at least one fastening element having a contact area, the at least one fastening element comprising a metal at least to an extent of 51 wt %, based on the fastening element, and the fastening element being surrounded at least in part by the base body.

METAL MATRIX COMPOSITE MATERIAL AND METHOD OF MANUFACTURING SAME

A composite material having a grainy appearance, this composite material including a metal matrix which represents, in terms of volume fraction, between 50 and 95% of the grainy composite material, the ceramic particles having a diameter that lies in the range 0.1 to 2 mm and which represent, in terms of volume fraction, between 50 and 5% of the composite material are dispersed in the metal matrix and form the remainder of this grainy composite material. A method for manufacturing a grainy synthetic material.