Patent ID: 11872628
Assignee: POWDERMET, INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 19:
20. A composite that includes a ceramic phase, a non-solid phase, and a metal phase; said non-solid phase and said ceramic phase are segregated into isolated pockets forming a discontinuous phase in said composite; said metal phase is continuous phase in said composite; said ceramic phase is formed of one or more materials selected from the group consisting of carbon, SiAlON, Si3N4, SiC, SiOC, SiO2, Al2O3, aluminates, zirconates, aluminosilicates, and ZrO2; said metal phase includes niobium, aluminum; said non-solid phase formed of a) a vacuum in one or more cavities in said composite, and wherein said one or cavities is located in said metal phase and/or said ceramic phase, and/or b) a low thermal conductivity gas, and wherein said low thermal conductivity gas includes one or more gases selected from the group of air, one or more noble gasses, and nitrogen; said ceramic phase constitutes 5-35 vol. % of said composite; said non-solid phase constitutes 10-40 vol. % of said composite; a plurality of said ceramic phase is formed of ceramic particles that include one or more cavities that are filled with a portion of said non-solid phase; said metallic phase forms about 1-20 vol. % of the composite; said composite having a compression modulus that is at least 25% less than a compression modulus of said metal forming said metal phase, said composite also having a thermal conductivity that is at least 40% less than a thermal conductivity of said metal that forms said metal phase, said composite having a density that is at least 20% lower than a density of said metal that forms said metal phase.