Heat-resisting phosphate based compound sintered bodies and prod

Details Heat-resisting phosphate based compound sintered bodies and prod Heat-resisting phosphate based compound sintered bodies and prod

1989-07-10

1990-11-06

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501103, 501102, C04B 3548

Patent

active

049686488

ABSTRACT:
Heat-resisting phosphate based compound sintered bodies are disclosed, which each contain not less than 10% by weight of a crystalline phase of RZr.sub.4 (PO.sub.4).sub.6 in which R is an element in Group IIa of the Periodic Table. A weight-reduced percentage of the sintered body when being thermally treated at 1,400.degree. C. for 100 hours is not more than 10%. A process for producing such phosphate based compound sintered bodies is also disclosed.

REFERENCES:
S. Y. Limaye, D. K. Agrawal and H. A. McKinstry, "Synthesis and Thermal Expansion of MZr.sub.4 P.sub.6 O.sub.24 (M=Mg, Ca, Si, Ba)", Journal of the American Ceramic Society, vol. 70, No. 10, C232-236, (1987).

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