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ZIRCONIA TOUGHENED ALUMINA CERAMIC SINTERED BODIES
A sintered ceramic body having at least one surface, the sintered ceramic body having a first crystalline phase comprising Al2O3 and from 8 vol. % to 20 vol. % of a second crystalline phase comprising ZrO2, wherein the first crystalline phase is a continuous matrix and the second crystalline phase is dispersed in the continuous matrix, wherein the sintered ceramic body has pores wherein the pores have a maximum pore size of from 0.1 to 5 μm as measured by SEM, wherein sintered ceramic body exhibits a coefficient of thermal expansion of from 6.899 to 9.630×106/° C. across a temperature range of from 25-200° C. to 25-1400° C. as measured in accordance with ASTM E228-17, wherein the sintered ceramic body has a relative density of from 99% to 100% and has a density variation of from 0.2 to less than 5% across a greatest dimension.
ZIRCONIA TOUGHENED ALUMINA CERAMIC SINTERED BODIES
A sintered ceramic body having at least one surface, the sintered ceramic body having a first crystalline phase comprising Al2O3 and from 8 vol. % to 20 vol. % of a second crystalline phase comprising ZrO2, wherein the first crystalline phase is a continuous matrix and the second crystalline phase is dispersed in the continuous matrix, wherein the sintered ceramic body has pores wherein the pores have a maximum pore size of from 0.1 to 5 μm as measured by SEM, wherein sintered ceramic body exhibits a coefficient of thermal expansion of from 6.899 to 9.630×106/° C. across a temperature range of from 25-200° C. to 25-1400° C. as measured in accordance with ASTM E228-17, wherein the sintered ceramic body has a relative density of from 99% to 100% and has a density variation of from 0.2 to less than 5% across a greatest dimension.
ZIRCONIA TOUGHENED ALUMINA CERAMIC SINTERED BODIES
ZIRKONIUMGEHÄRTETE KERAMISCHE SINTERKÖRPER AUS ALUMINIUMOXID
CORPS FRITTÉS EN CÉRAMIQUE D'ALUMINE RENFORCÉE PAR DE LA ZIRCONE
WALKER LUKE (author) / DONELON MATTHEW JOSEPH (author)
2023-08-23
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Preparation method of nano-zirconia toughened nano-alumina ceramic
| European Patent Office | 2024