A strong and damage-tolerant oxide laminate

Dong Hau Kuo; Waltraud M. Kriven

A strong and damage-tolerant oxide laminate

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Abstract

A novel laminar oxide composite was developed. This oxide laminate, which was fabricated by hot pressing, consisted of three types of layers, which were stacked in a repeating sequence of YPO ₄, yttria-stabilized ZrO ₂, 30 vol% yttria-stabilized ZrO ₂-70 vol% Al ₂O ₃, and yttria-stabilized ZrO ₂. The behavior of the oxide laminate was evaluated by four-point flexural testing and the indentation technique. The flexural strength from one test was 358 MPa, and the load-displacement curve of this test displayed a graceful failure. Pronounced interfacial delamination contributed to a high work of fracture and damage tolerance. These properties have rarely been observed in oxide composites and are comparable to those of non-oxide composites, such as SiC/graphite, SiC/BN, and Si ₃N ₄/BN laminates.

Original language	English (US)
Pages (from-to)	2421-2424
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	80
Issue number	9
State	Published - Sep 1 1997

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ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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Kuo, D. H., & Kriven, W. M. (1997). A strong and damage-tolerant oxide laminate. Journal of the American Ceramic Society, 80(9), 2421-2424.

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A strong and damage-tolerant oxide laminate

Abstract

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