Ultra low thermal expansion, highly thermal shock resistant ceramic
Patent
·
OSTI ID:870277
- 1440 Sandpiper Cir. #38, Salt Lake City, UT 84117
Three families of ceramic compositions having the given formula: .phi..sub.1+X Zr.sub.4 P.sub.6-2X Si.sub.2X O.sub.24, .phi..sub.1+X Zr.sub.4-2X Y.sub.2X P.sub.6 O.sub.24 and .phi..sub.1+X Zr.sub.4-X Y.sub.X P.sub.6-2X Si.sub.X O.sub.24 wherein .phi. is either Strontium or Barium and X has a value from about 0.2 to about 0.8 have been disclosed. Ceramics formed from these compositions exhibit very low, generally near neutral, thermal expansion over a wide range of elevated temperatures.
- Research Organization:
- Cerametic Inc
- DOE Contract Number:
- AC05-87ER80502
- Assignee:
- Limaye, Santosh Y. (1440 Sandpiper Cir. #38, Salt Lake City, UT 84117)
- Patent Number(s):
- US 5488018
- OSTI ID:
- 870277
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/501/423/
24
2x
4-2x
4-x
6-2x
barium
ceramic
ceramic composition
ceramic compositions
ceramics
ceramics form
compositions
disclosed
elevated
elevated temperature
elevated temperatures
exhibit
expansion
families
formed
formula
highly
near
neutral
phi
range
resistant
resistant ceramic
shock
shock resistant
strontium
temperatures
thermal
thermal expansion
thermal shock
ultra
value
wide
wide range
zr
24
2x
4-2x
4-x
6-2x
barium
ceramic
ceramic composition
ceramic compositions
ceramics
ceramics form
compositions
disclosed
elevated
elevated temperature
elevated temperatures
exhibit
expansion
families
formed
formula
highly
near
neutral
phi
range
resistant
resistant ceramic
shock
shock resistant
strontium
temperatures
thermal
thermal expansion
thermal shock
ultra
value
wide
wide range
zr