Erosion response of highly anisotropic silicon nitride

Yu Zhang, Yi Bing Cheng, Srinivasarao Lathabai, Kiyoshi Hirao

Research output: Contribution to journalArticle

Abstract

The erosion rates and impact damage of two sintered Si 3N 4 materials with identical compositions but different microstructures were determined using a gas-blast-type erosion rig. The erodent particles used were SiC grits and the impact angles investigated were 30° and 90°. It was found that the erosion behavior of the two materials could not be related to their mechanical properties, such as hardness and fracture toughness as predicted by the theoretical erosion models. In fact, a close relationship was identified between their microstructure and the erosion mechanism. Microstructures containing evenly dispersed and uniaxially oriented reinforcing whiskers promoted grain-pullout, while the randomly oriented elongated grains hindered it.

Original languageEnglish (US)
Pages (from-to)114-120
Number of pages7
JournalJournal of the American Ceramic Society
Volume88
Issue number1
DOIs
StatePublished - Jan 2005

Fingerprint

Silicon nitride
Erosion
Microstructure
Fracture toughness
Gases
Hardness
silicon nitride
Mechanical properties
Chemical analysis

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Erosion response of highly anisotropic silicon nitride. / Zhang, Yu; Cheng, Yi Bing; Lathabai, Srinivasarao; Hirao, Kiyoshi.

In: Journal of the American Ceramic Society, Vol. 88, No. 1, 01.2005, p. 114-120.

Research output: Contribution to journalArticle

Zhang, Yu ; Cheng, Yi Bing ; Lathabai, Srinivasarao ; Hirao, Kiyoshi. / Erosion response of highly anisotropic silicon nitride. In: Journal of the American Ceramic Society. 2005 ; Vol. 88, No. 1. pp. 114-120.
@article{340f0a243b40489681f16926d75347ce,
title = "Erosion response of highly anisotropic silicon nitride",
abstract = "The erosion rates and impact damage of two sintered Si 3N 4 materials with identical compositions but different microstructures were determined using a gas-blast-type erosion rig. The erodent particles used were SiC grits and the impact angles investigated were 30° and 90°. It was found that the erosion behavior of the two materials could not be related to their mechanical properties, such as hardness and fracture toughness as predicted by the theoretical erosion models. In fact, a close relationship was identified between their microstructure and the erosion mechanism. Microstructures containing evenly dispersed and uniaxially oriented reinforcing whiskers promoted grain-pullout, while the randomly oriented elongated grains hindered it.",
author = "Yu Zhang and Cheng, {Yi Bing} and Srinivasarao Lathabai and Kiyoshi Hirao",
year = "2005",
month = "1",
doi = "10.1111/j.1551-2916.2004.00014.x",
language = "English (US)",
volume = "88",
pages = "114--120",
journal = "Journal of the American Ceramic Society",
issn = "0002-7820",
publisher = "Wiley-Blackwell",
number = "1",

}

TY - JOUR

T1 - Erosion response of highly anisotropic silicon nitride

AU - Zhang, Yu

AU - Cheng, Yi Bing

AU - Lathabai, Srinivasarao

AU - Hirao, Kiyoshi

PY - 2005/1

Y1 - 2005/1

N2 - The erosion rates and impact damage of two sintered Si 3N 4 materials with identical compositions but different microstructures were determined using a gas-blast-type erosion rig. The erodent particles used were SiC grits and the impact angles investigated were 30° and 90°. It was found that the erosion behavior of the two materials could not be related to their mechanical properties, such as hardness and fracture toughness as predicted by the theoretical erosion models. In fact, a close relationship was identified between their microstructure and the erosion mechanism. Microstructures containing evenly dispersed and uniaxially oriented reinforcing whiskers promoted grain-pullout, while the randomly oriented elongated grains hindered it.

AB - The erosion rates and impact damage of two sintered Si 3N 4 materials with identical compositions but different microstructures were determined using a gas-blast-type erosion rig. The erodent particles used were SiC grits and the impact angles investigated were 30° and 90°. It was found that the erosion behavior of the two materials could not be related to their mechanical properties, such as hardness and fracture toughness as predicted by the theoretical erosion models. In fact, a close relationship was identified between their microstructure and the erosion mechanism. Microstructures containing evenly dispersed and uniaxially oriented reinforcing whiskers promoted grain-pullout, while the randomly oriented elongated grains hindered it.

UR - http://www.scopus.com/inward/record.url?scp=27644482450&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27644482450&partnerID=8YFLogxK

U2 - 10.1111/j.1551-2916.2004.00014.x

DO - 10.1111/j.1551-2916.2004.00014.x

M3 - Article

VL - 88

SP - 114

EP - 120

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 1

ER -