Abstract: A method for fabricating assemblies that includes providing a first component that further includes silicon carbide and that has an upper portion and a tapered lower portion; providing a second component that further includes silicon carbide and that has an upper portion that is adapted to receive the tapered lower portion of the first component; providing a predetermined amount of multiphase Al—Si braze foil; grinding the Al—Si braze foil into a powder; mixing a predetermined amount of braze paste binder with the Al—Si powder to form a slurry; uniformly applying the slurry to the tapered lower portion of the first component; uniformly applying the slurry to the upper portion of the second component and inserting the tapered lower portion of the first component into the upper portion of the second component; and heating the applied slurry to a temperature of 725° C. to 1450° C. for a predetermined period of time.

Abstract: A method for fabricating assemblies that includes providing a first component that further includes silicon carbide and that has an upper portion and a tapered lower portion; providing a second component that further includes silicon carbide and that has an upper portion that is adapted to receive the tapered lower portion of the first component; providing a predetermined amount of multiphase Al—Si braze foil; grinding the Al—Si braze foil into a powder; mixing a predetermined amount of braze paste binder with the Al—Si powder to form a slurry; uniformly applying the slurry to the tapered lower portion of the first component; uniformly applying the slurry to the upper portion of the second component and inserting the tapered lower portion of the first component into the upper portion of the second component; and heating the applied slurry to a temperature of 725° C. to 1450° C. for a predetermined period of time.

Abstract: A method for fabricating assemblies includes providing first and second components that include ceramic, metal, or composite; positioning a multiphase joining interlayer between the first and second components, wherein the joining interlayer includes a first phase that melts at a first temperature and a second phase interspersed throughout the first phase, and wherein the second phase melts at a second temperature that is lower than the melting temperature of the first phase; and heating the joining interlayer to a temperature in the range of 725° C. to 1450° C. for a predetermined period of time to soften the first phase and melt the second phase, wherein the first phase remains in a solid or a semi-solid state, and wherein the second phase segregates to the boundaries of the first phase and transforms the joining interlayer into a substantially porosity-free adherent material that joins the first component to the second component.

Abstract: A method for fabricating assemblies includes providing first and second components that include ceramic, metal, or composite; positioning a multiphase joining interlayer between the first and second components, wherein the joining interlayer includes a first phase that melts at a first temperature and a second phase interspersed throughout the first phase, and wherein the second phase melts at a second temperature that is lower than the melting temperature of the first phase; and heating the joining interlayer to a temperature in the range of 725° C. to 1450° C. for a predetermined period of time to soften the first phase and melt the second phase, wherein the first phase remains in a solid or a semi-solid state, and wherein the second phase segregates to the boundaries of the first phase and transforms the joining interlayer into a substantially porosity-free adherent material that joins the first component to the second component.

Abstract: A system for fabricating silicon carbide assemblies that includes at least two silicon carbide materials; at least one joining interlayer positioned between the at least two silicon carbide materials, wherein the at least one joining interlayer further includes a first material that melts at a first temperature and a second material interspersed throughout the first material, and wherein the second material melts at a temperature that is lower than that of the first material; and at least one apparatus for applying energy to the joining interlayer, wherein applying energy to the joining interlayer is operative to soften the first material and melt the second material, and wherein softening the first material and melting the second material is operative to transform the joining interlayer into a substantially porosity-free adherent material capable of joining together the at least two silicon carbide materials.

Abstract: A scroll machine is provided with wear resistant features to provide the scroll machine with improved operation when processing CO2 refrigerant. In certain aspects, the scroll machine has an Oldham coupling comprising aluminum, where the aluminum has an anodized surface forming a passivation layer thereon. The scroll machine optionally further has a self-lubricating bearing capable of use in the CO2 scroll machine for at least 1,000 hours of operation.

Abstract: A scroll machine is provided with wear resistant features to provide the scroll machine with improved operation when processing CO2 refrigerant. In certain aspects, the scroll machine has an Oldham coupling comprising aluminum, where the aluminum has an anodized surface forming a passivation layer thereon. The scroll machine optionally further has a self-lubricating bearing capable of use in the CO2 scroll machine for at least 1,000 hours of operation.

Abstract: A compressor having a corrosive resistant coating is disclosed. The coating has a first spray coated metallic layer. A sealant layer is disposed over the sprayed metallic coating which has an organic component, a solvent component, and an inorganic phase.

Abstract: A compressor having a corrosive resistant coating is disclosed. The coating has a first spray coated metallic layer. A sealant layer is disposed over the sprayed metallic coating which has an organic component, a solvent component, and an inorganic phase.

Abstract: A compressor having a corrosive resistant coating is disclosed. The coating has a first spray coated metallic layer. A sealant layer is disposed over the sprayed metallic coating which has an organic component, a solvent component, and an inorganic phase.

Abstract: A compressor having a corrosive resistant coating is disclosed. The coating has a first spray coated metallic layer. A sealant layer is disposed over the sprayed metallic coating which has an organic component, a solvent component, and an inorganic phase.