Investigation of silicon nitride composites toughened with prenitrided TiB2

Jow Lay Huang; Shih Yih Chen

doi:10.1016/0272-8842(95)95875-I

Investigation of silicon nitride composites toughened with prenitrided TiB₂

Jow Lay Huang, Shih Yih Chen

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

14 Citations (Scopus)

Abstract

Titanium diboride, which was prenitrided in various conditions, was incorporated into Si₃N₄ before hot pressing. The TiN coating substantially reduced the chemical reaction between TiB₂and the Si₃N₄ matrix. The thickness of TiN coating played an important role in the chemical stability of TiB₂ in the Si₃N₄ matrix and the strain compatibility at interfaces. The fracture toughness of Si₃N₄ was enhanced 33% with prenitrided-TiB₂ particles (20% by volume). Crack deflection was the major toughening mechanism, but the microcracking mechanism could also play a role.

Original language	English
Pages (from-to)	77-83
Number of pages	7
Journal	Ceramics International
Volume	21
Issue number	2
DOIs	https://doi.org/10.1016/0272-8842(95)95875-I
Publication status	Published - 1995

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/0272-8842(95)95875-I

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title = "Investigation of silicon nitride composites toughened with prenitrided TiB2",

abstract = "Titanium diboride, which was prenitrided in various conditions, was incorporated into Si3N4 before hot pressing. The TiN coating substantially reduced the chemical reaction between TiB2and the Si3N4 matrix. The thickness of TiN coating played an important role in the chemical stability of TiB2 in the Si3N4 matrix and the strain compatibility at interfaces. The fracture toughness of Si3N4 was enhanced 33% with prenitrided-TiB2 particles (20% by volume). Crack deflection was the major toughening mechanism, but the microcracking mechanism could also play a role.",

author = "Huang, {Jow Lay} and Chen, {Shih Yih}",

note = "Funding Information: The authorsw ould like to thank National Science Council of the R.O.C. for its financial support under the contractn o. 80-0405-E006-49.",

year = "1995",

doi = "10.1016/0272-8842(95)95875-I",

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T1 - Investigation of silicon nitride composites toughened with prenitrided TiB2

AU - Huang, Jow Lay

AU - Chen, Shih Yih

N1 - Funding Information: The authorsw ould like to thank National Science Council of the R.O.C. for its financial support under the contractn o. 80-0405-E006-49.

PY - 1995

Y1 - 1995

N2 - Titanium diboride, which was prenitrided in various conditions, was incorporated into Si3N4 before hot pressing. The TiN coating substantially reduced the chemical reaction between TiB2and the Si3N4 matrix. The thickness of TiN coating played an important role in the chemical stability of TiB2 in the Si3N4 matrix and the strain compatibility at interfaces. The fracture toughness of Si3N4 was enhanced 33% with prenitrided-TiB2 particles (20% by volume). Crack deflection was the major toughening mechanism, but the microcracking mechanism could also play a role.

AB - Titanium diboride, which was prenitrided in various conditions, was incorporated into Si3N4 before hot pressing. The TiN coating substantially reduced the chemical reaction between TiB2and the Si3N4 matrix. The thickness of TiN coating played an important role in the chemical stability of TiB2 in the Si3N4 matrix and the strain compatibility at interfaces. The fracture toughness of Si3N4 was enhanced 33% with prenitrided-TiB2 particles (20% by volume). Crack deflection was the major toughening mechanism, but the microcracking mechanism could also play a role.

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EP - 83

JO - Ceramics International

JF - Ceramics International

IS - 2

ER -

Investigation of silicon nitride composites toughened with prenitrided TiB₂

Abstract

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