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Simultaneous fabrication of a composite with low thermal expansion and high strength in the eucryptite : yttria-stabilized PSZ system

Low thermal expansion coefficient and high mechanical strength were attained simultaneously in a composite with a microstructure in which the low thermal expansion grains are surrounded by a continuous texture of the grains with high strength. Alloying eucryptite with yttria-stabilised PSZ simultane...

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Bibliographic Details
Published in:Journal of materials science 1996-07, Vol.31 (14), p.3691-3695
Main Authors: SHIMADA, T, MIZUNO, M, KURACHI, K, KATO, N, SAKURADA, O, HASHIBA, M, NURISHI, Y
Format: Article
Language:English
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Summary:Low thermal expansion coefficient and high mechanical strength were attained simultaneously in a composite with a microstructure in which the low thermal expansion grains are surrounded by a continuous texture of the grains with high strength. Alloying eucryptite with yttria-stabilised PSZ simultaneously achieved the low thermal expansion coefficient, 1.45 x 10(-6), and the high bending strength, 220 MPa, by adjusting the composition and controlling the microstructure by changing the starting powders and the milling durations. Grain size and reactions between the coupled materials determined the critical processing conditions. 15 refs.
ISSN:0022-2461
1573-4803
DOI:10.1007/BF00352781