A study on wear and erosion of sialon-Si3N4 whisker ceramic composites

Dong Soo Park, Byung Dong Han, Dae-Soon Lim, In Woong Yeo

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Sialon-based ceramic composite materials containing 0-20 wt.% Si3N4 whiskers were hot pressed and their mechanical properties and microstructural characterization were investigated. The specimens were subjected to ball-on-reciprocating plate type wear tests at temperatures between room temperature and 1073 K. A gas blast type erosion tester was employed to examine erosion behavior of the composite at room temperature and 773 K. Si3N4 whiskers caused formation of large elongated grains in the microstructure. The specimen with the higher content of Si3N4 whiskers exhibited higher fracture toughness and lower flexural strength resulting from the larger grain size. Wear test results showed that a higher wear rate was obtained as whisker content and test temperature increased. Scanning electron microscopy observation on the wear track of specimens containing O and 20 wt.% Si3N4 whiskers tested at 1073 K revealed that the one with 20 wt.% of Si3N4 whiskers had deeper grooves inside the track than that with O wt.% Si3N4 whiskers. Erosion test results showed a tendency similar to that of the wear test results. The higher the test temperature and the more whiskers the specimen contained, the higher the erosion rate.

Original languageEnglish
Pages (from-to)284-290
Number of pages7
JournalWear
Volume203-204
Publication statusPublished - 1997 Mar 1

Fingerprint

sialon
erosion
wear tests
Erosion
Wear of materials
ceramics
composite materials
Composite materials
Temperature
flexural strength
room temperature
blasts
fracture strength
test equipment
grooves
temperature
balls
Ceramic materials
tendencies
Bending strength

Keywords

  • Ceramic composite
  • Erosion
  • High temperature
  • Sialon
  • Wear
  • Whisker

ASJC Scopus subject areas

  • Engineering(all)
  • Mechanical Engineering
  • Surfaces, Coatings and Films

Cite this

Park, D. S., Han, B. D., Lim, D-S., & Yeo, I. W. (1997). A study on wear and erosion of sialon-Si3N4 whisker ceramic composites. Wear, 203-204, 284-290.

A study on wear and erosion of sialon-Si3N4 whisker ceramic composites. / Park, Dong Soo; Han, Byung Dong; Lim, Dae-Soon; Yeo, In Woong.

In: Wear, Vol. 203-204, 01.03.1997, p. 284-290.

Research output: Contribution to journalArticle

Park, DS, Han, BD, Lim, D-S & Yeo, IW 1997, 'A study on wear and erosion of sialon-Si3N4 whisker ceramic composites', Wear, vol. 203-204, pp. 284-290.
Park DS, Han BD, Lim D-S, Yeo IW. A study on wear and erosion of sialon-Si3N4 whisker ceramic composites. Wear. 1997 Mar 1;203-204:284-290.
Park, Dong Soo ; Han, Byung Dong ; Lim, Dae-Soon ; Yeo, In Woong. / A study on wear and erosion of sialon-Si3N4 whisker ceramic composites. In: Wear. 1997 ; Vol. 203-204. pp. 284-290.
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