Published June 1989 | Version v1
Journal article Metadata-only

Indentation fracture toughness of sintered silicon carbide in the Palmqvist crack regime

Creators

  • 1. Argonne National Lab., IL (United States)
  • 2. Oak Ridge National Lab., High Temperature Materials Lab., Oak Ridge, TN (United States)
  • 3. Washington Univ., Seattle, WA (United States). Coll. of Engineering
  • 4. Nevada Univ., Reno, NV (United States). Mackay School of Mines

Description

This paper reports on the fracture toughness of a sintered dense α-SIC estimated by the Vickers indentation microfracture method in the low-load Palmqvist crack regime. It was observed that the use of simultaneously Vickers hardnesses does not yield reliable fracture toughness values, nor does application of the median-crack -derived equation. It is necessary to utilize a load-independent, crack-free hardness value with this toughness estimation method

Additional details

Publishing Information

Journal Title
Journal of the American Ceramic Society
Journal Volume
72
Journal Issue
6
Series
J. Am. Ceram. Soc.
Journal Page Range
904-911
ISSN
0002-7820
CODEN
JACTA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23018777
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
FRACTURE PROPERTIES; SILICON CARBIDES; SINTERING; VICKERS HARDNESS
Descriptors DEC
CARBIDES; CARBON COMPOUNDS; FABRICATION; MECHANICAL PROPERTIES; SILICON COMPOUNDS