Abstract: A novel silver braze alloy material is provided which exhibits both a low melting temperature and excellent wettability when brazing components of an article, such as a tools that include a polycrystalline diamond compact. For example, the combination of these properties is beneficial in terms of cost (given the lower silver content) as well as for brazing a cutter to a drill bit body by forming a strong bond (via the high wettability property) and reducing potential damage to the drill bit during the brazing operation (via the low melting temperature property of the alloy).

Abstract: Thermal spray coating obtained from a thermal spray powder material containing at least one of Aluminum-containing particles, Magnesium-containing particles, and Titanium-containing particles mechanically alloyed to a transition metal. The coating includes Aluminum, Magnesium, or Titanium alloy portions alloyed to the transition metal. The thermal spray powder is obtained of Aluminum, Magnesium, or Titanium containing particles mechanically alloyed to a transition metal.

Abstract: Disclosed herein are embodiments of iron-based alloys. The alloys can be powders used as a feedstock for plasma or thermal spray processes. In some embodiments, the alloys can have low or no chromium, provided improvements from an environmental and worker health perspective. In some embodiments, the powder can have a generally large particle size.

Abstract: A powder agglomerate for an abradable sealant coating is provided that includes a first powder having a pure metal or a metal alloy; and a second powder including a mineral, in which the powder agglomerate has at least one morphology selected from a porous agglomerate, a hollow agglomerate, a complex agglomerate, and a composite agglomerate. A powder agglomeration method that does not use fugitive phases and porosity formers, such as polymers, is also provided.

Abstract: An alloy for powder-based additive manufacturing is provided that includes a powder having 20-24 wt % of Ni; 20-24 wt % of Cr, 13-16 wt % of W; 0.2-0.50 wt % of Si; 0-3 wt % of Fe; 0-1.25 wt % of Mn; 0-0.015 B; >0 C; >0 La; and a balance of Co, in which a ratio in a content of C to La in the alloy is <1.75.

Abstract: An erosion and CMAS resistant coating arranged on an EBC coated substrate includes at least one porous vertically cracked (PVC) coating layer providing CTE mitigation and being disposed over the EBC coated substrate. At least one dense vertically cracked (DVC) erosion and CMAS resistant coating layer is deposited over the at least one PVC coating layer.

Abstract: A Ni—Cr—W—Mo—La alloy material powder for additive manufacturing has a composition of: 18.0-22.0 wt % Cr; 12.0-15.0 wt % W; 1.0-3.0 wt % Mo; 0.15-0.75 wt % Al; 0.005-0.05 wt % La; 0.001?C?0.045 wt %; and 0.005?Si?0.20 wt %; and remainder Ni and unavoidable residual elements and impurities. The powder has a general size distribution between 10 and 100 ?m.

Abstract: A method of manufacturing a corrosion- and wear-resistant component and a corrosion- and wear-resistant component. The method includes preparing a feedstock powder that includes a stainless steel powder and a ceramic powder, sintering the feedstock powder at a first temperature to form a low porosity free-standing wear body, and bonding the wear body to an aluminum or aluminum alloy substrate at a second temperature lower than the first temperature.

Abstract: Disclosed herein are embodiments of a powder feedstock, such as for bulk welding, which can produce welds. The powder feedstock can include high levels of boron, and may be improved over previously used cored wires. Coatings can be formed from the powder feedstock which may have high hardness in certain embodiments, and low mass loss under ASTM standards.

Abstract: A thermal spray material feedstock is provided that includes an iron-based alloy having 5-12 wt % of Al; 1.8-7.5 wt % of B; 0-2 wt % of C; 0-4.5 wt % of Mo; 0-6.5 wt % of V; and a balance of Fe. The iron-based alloy is substantially free of chromium and nickel.

Abstract: An erosion and CMAS resistant coating arranged on a TBC coated substrate and including at least one porous vertically cracked (PVC) coating layer providing lower thermal conductivity and being disposed over a layer of MCrAlY wherein M represents Ni, Co or their combinations. At least one dense vertically cracked (DVC) erosion and CMAS resistant coating layer is deposited over the at least one PVC coating layer.

Abstract: A thermal spray material feedstock is provided for “flash-carbide” coatings. Flash carbide coatings are thin, dense, and smooth thermal spray coatings that self-activate the substrate. Flash-carbide coatings form and peen the coating to impart compressive stress for good adhesion and corrosion resistance. To achieve this combination of properties and performance, a powder that includes fine, dense, and angular particles is used; however, this powder alone results in a poor deposition efficiency of typically less than 20%. The present disclosure mitigates the poor deposition efficiency of this powder alone by providing a composition having two or more different particles at a specific ratio to improve deposition efficiency with sufficient optimized stress and corrosion properties and, in some cases, an increase in coating performance.

Abstract: Disclosed herein are embodiments of nickel-based alloys. The nickel-based alloys can be used as feedstock for PTA and laser cladding hardfacing processes, and can be manufactured into cored wires used to form hardfacing layers. The nickel-based alloys can have high corrosion resistance and large numbers of hard phases such as isolated hypereutectic hard phases.

Abstract: Thermal spray gun (1) and/or nozzle (120) includes a nozzle body and a liner material (123) arranged within the nozzle body. A material of the nozzle body has a lower melting temperature than that of the liner material (123). A wall thickness (C) of the liner material (123) has a value determined in relation to or that corresponds to a wall thickness (D) of the nozzle body. Alternatively or additionally, a ratio of a total wall thickness of a portion of a nozzle (120) to that of a wall thickness (C) of the liner material (123) has a value determined in relation to or that corresponds to the wall thickness (C) of liner material (123).

Abstract: An environmental barrier coating topcoat for improved resistance to calcium-magnesium-aluminosilicate (CMAS) degradation is disclosed. The CMAS mitigation compositions are based on spinel-containing materials. A CMAS-resistant multilayer structure on a substrate, the multi-CMAS-resistant topcoat 140 layer structure including a bond coating layer on the substrate; a hermetic EBC layer on the bond coating layer; and a CMAS-resistant topcoat layer including at least one of AB2O4 materials (A=Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe or combinations thereof; and B=Al, Fe, Cr, Co, V or combinations thereof); AB2O4 materials mixture with AxOy (A=Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe); AB2O4 materials mixture with BxOy (B=Al, Fe, Cr Co, V); AB2O4 materials mixture with RE2Si2O7 or RE2SiO5 silicate (RE=rare earth material); AB2O4 with rare earth oxides-stabilized Zirconia; AB2O4 with rare earth oxides-stabilized Hafnia; AB2O4 with aluminosilicates; AB2O4 with rare earth garnets; and MgO, NiO, Co2O3, Al2O3.

Abstract: An electrically conductive composite powder having improved corrosion resistance is provided for microwave shielding applications. The electrically conductive composite powder composition includes a core of particles having a low density and a high dielectric constant; a nickel layer that is coated onto the core of particles; and a corrosion resistant alloy layer that is deposited onto the nickel layer. The electrically conductive composite powder exhibits excellent corrosion resistance performance, while also being substantially lower in cost that conventional Ag/glass shields. The electrically conductive composite powder can be used across a broad frequency range.

Abstract: A mixture for forming a wear resistant layer on a substrate comprises particles of a first wear resistant particle type, particles of a second wear resistant particle type and a wear resistant layer binder for binding the first and the second wear resistant particles in the wear resistant layer when the layer is formed. As well, wear resistant particle size distributions for the first and second wear resistant particle types have a first mode and a second mode. The first particle type is associated with the first mode and the second particle type is associated with the second mode. Moreover, a number of first wear resistant particles associated with the first mode is larger than a number of second wear resistant particles associated with the second mode. Further, the second mode is larger than the first mode.

Abstract: A Si-based composite bond coat for environmental barrier coatings on a Si-based ceramic matrix composite that protects the CMC from an oxidation environment by in-situ modifying a thermally grown oxide (TGO) using a TGO modifier to suppress cristobalite TGO cracking during thermal cycling in a gas turbine engine.

Abstract: An electrically conductive composite powder is provided for microwave shielding applications. The electrically conductive composite powder includes a core of particles formed from a material having a low density of <5 g/cm3 and a high dielectric constant of ?10; an intermediate layer coated onto the core of particles, wherein said intermediate layer has a high electrical conductivity of >5.90×10?8 Ohm*m at 20° C.; and an outer layer that is deposited onto the intermediate layer, said outer layer comprising a material having a high oxidation and corrosion resistance of >?0.2V galvanic potential in seawater as measured via ASTM G82. The electrically conductive composite powder exhibits excellent microwave shielding performance, while also being substantially lower in cost that conventional Ag/Ni shields. The electrically conductive composite powder can be used across a broad microwave frequency range.

Abstract: A method for preparing powders of hard alloys, such as Ti and Ti—Zr alloys, using a hydride-dehydride process, and powders produced by the process, are disclosed. The method can be used to manufacture brazing powders. The method is less hazardous and more cost effective than current methods, such as gas atomization, of preparing such braze materials.