Zirconyl phosphate ceramics, a process for their production and

Details Zirconyl phosphate ceramics, a process for their production and Zirconyl phosphate ceramics, a process for their production and

1989-06-12

1991-02-05

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

106450, 106455, C04B 3548

Patent

active

049904736

ABSTRACT:
Zirconyl phosphate ceramics having high strength and high heat shock resistance, which consist essentially of at least 99% by weight of zirconyl phosphate, zirconium phosphates or both and no other phase material in quantities of more than 1% by weight are useful in ceramic filters and ceramic internal combustion engine parts and are prepared by mixing zirconyl phosphate or substances which form zirconyl phosphate with an antimony compound, moulding the resulting mixture and then sintering the moulded mixture at temperatures of 1200.degree. to 1700.degree. C.

REFERENCES:
patent: 4703023 (1987-10-01), Yamai
Yamai et al., "Low-Thermal-Expansion Polycrystalline Zirconyl Phosphate Ceramic", J. American Soc. 68 [5] 73-78, 1985.

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