Abstract: A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.

Abstract: A High Entropy Alloy (HEA) anode for a Solid Oxide Fuel Cell (SOFC), in which the HEA anode comprises: approximately ten (˜10) atomic percent (%) to ˜35% Copper (Cu) (preferably ˜23% to ˜27% Cu, and more preferably ˜24% to ˜26% Cu); ˜10% to ˜35% Iron (Fe) (preferably ˜23% to ˜27% Fe, and more preferably ˜24% to ˜26% Fe); ˜10% to ˜35% Cobalt (Co) (preferably ˜23% to ˜27% Co, and more preferably ˜24% to ˜26% Co); ˜5% to ˜25% Nickel (Ni) (preferably ˜13% to ˜17% Ni, and more preferably ˜14% to ˜16% Ni); ˜5% to ˜20% Manganese (Mn) (preferably ˜8% to 13% Mn, and more preferably ˜9% to 11% Mn); and less than a total of ˜2% other elements as impurities (preferably less than ˜1% total of other elements or impurities, and more preferably less than ˜0.5% total of other elements or impurities), with the sum of all of the alloying elements (Cu, Fe, Co, Ni, Mn, and impurities or other elements) totaling 100%.

Abstract: A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.

Abstract: A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.

Abstract: A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.

Abstract: A photoconductive semiconductor switch comprising a photoconductive GaAs substrate having a pair of spaced metal contacts on a surface thereof, the spaced metal contacts opposite ends of a switching gap, the switching gap having a plurality of lateral current flow preventing channels therein, the channels being formed by ion implantation of the GaAs substrate in the channels.

Abstract: Methods of producing CdZnTe (CZT) layers for the epitaxial growth of HgCdTe thereon include implanting ions into a CZT substrate at a low temperature to form a damaged layer underneath a CZT surface layer, bonding a wafer to the CZT substrate about the CZT surface layer using a bonding material, and, annealing the CZT substrate for a time sufficient to facilitate the splitting of the CZT substrate at the damaged layer from the CZT surface layer.

Abstract: The present invention provides a method for applying a tribological coating to a carbon composite substrate. The method includes providing the carbon composite substrate, depositing a layer of carbon on the substrate, applying a layer of aluminum on the layer of carbon, annealing the substrate at a temperature greater than a melting temperature of aluminum, and applying a layer of silver. A layer of mixed aluminum and silver may be substituted for the layer of silver.

Abstract: Methods of producing CdZnTe (CZT) layers for the epitaxial growth of HgCdTe thereon include implanting ions into a CZT substrate at a low temperature to form a damaged layer underneath a CZT surface layer, bonding a wafer to the CZT substrate about the CZT surface layer using a bonding material, and, annealing the CZT substrate for a time sufficient to facilitate the splitting of the CZT substrate at the damaged layer from the CZT surface layer.

Abstract: Embodiments of a method of preparing a coated C/C composite structure comprises the steps of: providing a C/C composite structure; applying a silicon based composition over the C/C composite structure by physical vapor deposition; forming a first layer comprising silicon carbide over the C/C composite by annealing the silicon based composition and the C/C composite at an annealing temperature; and applying a second layer comprising boron over the first layer by physical vapor deposition.

Abstract: Advanced machine tool coatings for Ti machining are presented. The coatings of the present invention provide for protection from chemical reactivity and higher cutting temperatures. In accordance with one embodiment of the present invention, a coated machine tool is provided including a relatively hard underlayer and a chemically inert overlayer. The relatively hard underlayer is formed over the base material of the machine tool. The overlayer is formed over the underlayer, is chemically inert with respect to titanium, and comprises an oxide of yttrium or another metal oxide. In accordance with another embodiment of the present invention, a coated machine tool is provided including an alkaline earth metal fluoride overlayer that is substantially chemically inert with respect to titanium. The overlayer includes a metal intermixed with the metal fluoride. The intermixed metal is softer than the base material.

Abstract: A method of providing corrosion resistant substrates having an amorphous metallic alloy coating thereon. The method comprises depositing refractory and transition elements, such as Ni, Nb, Ti and Cr, onto the substrate to provide a crystalline metallic layer thereon which is then irradiated to convert the layer into an amorphous metallic coating on the substrate. The coated substrate displays a corrosion resistance which is at least about four orders of magnitude greater than for the uncoated substrate in both lN HNO.sub.3 and 0.1 N NaCl aqueous solutions.