R-curve behavior of silicon nitride-titanium nitride composites

Heon Jin Choi; Kyeong Sik Cho; June Gunn Lee; Young Wook Kim

doi:10.1111/j.1151-2916.1997.tb03172.x

R-curve behavior of silicon nitride-titanium nitride composites

Heon Jin Choi, Kyeong Sik Cho, June Gunn Lee, Young Wook Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

The R-curve for Si₃N₄-40 wt% TiN composites was estimated by the indentation-strength method and compared to that of monolithic Si₃N₄ with duplex microstructure. Both materials exhibited rising R-curve behavior. The Si₃N₄-TiN composites, however, displayed better damage tolerance and higher resistance to crack growth. From TEM observation, it was inferred that this superior performance of Si₃N₄-TiN composites can be attributed mainly to stress-induced microcracking at heterophase (Si₃N₄/TiN) boundaries.

Original language	English
Pages (from-to)	2681-2684
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	80
Issue number	10
DOIs	https://doi.org/10.1111/j.1151-2916.1997.tb03172.x
Publication status	Published - 1997 Oct

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1997.tb03172.x

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title = "R-curve behavior of silicon nitride-titanium nitride composites",

abstract = "The R-curve for Si3N4-40 wt% TiN composites was estimated by the indentation-strength method and compared to that of monolithic Si3N4 with duplex microstructure. Both materials exhibited rising R-curve behavior. The Si3N4-TiN composites, however, displayed better damage tolerance and higher resistance to crack growth. From TEM observation, it was inferred that this superior performance of Si3N4-TiN composites can be attributed mainly to stress-induced microcracking at heterophase (Si3N4/TiN) boundaries.",

author = "Choi, {Heon Jin} and Cho, {Kyeong Sik} and Lee, {June Gunn} and Kim, {Young Wook}",

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AU - Choi, Heon Jin

AU - Cho, Kyeong Sik

AU - Lee, June Gunn

AU - Kim, Young Wook

PY - 1997/10

Y1 - 1997/10

N2 - The R-curve for Si3N4-40 wt% TiN composites was estimated by the indentation-strength method and compared to that of monolithic Si3N4 with duplex microstructure. Both materials exhibited rising R-curve behavior. The Si3N4-TiN composites, however, displayed better damage tolerance and higher resistance to crack growth. From TEM observation, it was inferred that this superior performance of Si3N4-TiN composites can be attributed mainly to stress-induced microcracking at heterophase (Si3N4/TiN) boundaries.

AB - The R-curve for Si3N4-40 wt% TiN composites was estimated by the indentation-strength method and compared to that of monolithic Si3N4 with duplex microstructure. Both materials exhibited rising R-curve behavior. The Si3N4-TiN composites, however, displayed better damage tolerance and higher resistance to crack growth. From TEM observation, it was inferred that this superior performance of Si3N4-TiN composites can be attributed mainly to stress-induced microcracking at heterophase (Si3N4/TiN) boundaries.

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R-curve behavior of silicon nitride-titanium nitride composites

Abstract

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