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Successful Design of New Very Low Thermal Expansion Ceramics

Published online by Cambridge University Press:  22 February 2011

Rustum Roy  and
D. K. Agrawal
Rustum Roy
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
D. K. Agrawal
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
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Abstract

In the last few years we have succeeded in developing three separate groups of near-zero-expansion ceramics. These are based on: (1) Modification by crystalline solution of GeO2 for SiO2 in the well-known cordierite phase. (2) Discovery of a new structural family known as [NZP] or [CTP], many members of which have near-zero values of a and very extensive crystalline solution possibilities permitting continuous control of α. (3) Di- (or multi) pfiasic composites of phases, one with negative and one with positive a to give a net-zero-α ceramic material.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 40: Symposium J – Electronic Packaging Materials Science I , 1984 , 83
Copyright
Copyright © Materials Research Society 1985

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References

1. Hummel, F.A., Foote Prints 20, 3 (1948).Google Scholar
2. Hummel, F.A., J. Am. Ceram. Soc. 34, 235 (1951).Google Scholar
3. Roy, R., Roy, D.M., and Osborn, E.F., J. Am. Ceram. Soc. 33, 152 (1950).Google Scholar
4. Stookey, S.D., “Low Expansion Glass-Ceramic and Method of Making It,” U.S. Patent 3,157,522 (November 17, 1966).Google Scholar
5. “Glass” Britain Patent 1,124,002 (April 14, 1968).Google Scholar
6. Van Uitert, L.G., “Melting Temperature and Periodicity”, J. Appl. Physics, 52 (6), 3738 (1981).CrossRefGoogle Scholar
7. Megaw, H.D., Mat. Res. Bull. 6, 1007 (1971).Google Scholar
8. Agrawal, D.K., Stubican, V.S. and Mehrotra, Y., “Method of Manufacturing Low Thermal Expansion Modified Cordierite Ceramics” (applied for U.S. Patent).Google Scholar
9. Agrawal, D.K., Stubican, V.S. and Mehrotra, Y., “Almost Zero Thermal Expansion Germanium-Cordierite Ceramics,” J. Am. Ceram. Soc. (to be published).Google Scholar
10. Alamo, J. and Roy, R., J. Am. Ceram. Soc. 67, C78 (1984).Google Scholar
11. Roy, R., Agrawal, D.K., Alamo, J. and Roy, R.A., Mat. Res. Bull. 19, 471 (1984).Google Scholar
12. Alamo, J. and Roy, R., Bull. Am. Ceram. Soc. 61, 333 (1982).Google Scholar
13. Agrawal, D.K. and Stubican, V.S., Mat. Res. Bull. (to be published in Feb. 1985).Google Scholar