Fracture toughness of advanced ceramics at room temperature

Quinn, G. D.; Salem, J.; Baron, I.; Cho, K.; Foley, M.; Fang, H.

doi:10.6028/jres.097.026

Fracture toughness of advanced ceramics at room temperature

Journal Article · Tue Sep 01 00:00:00 EDT 1992 · Journal of Research of the National Institute of Standards and Technology

DOI:https://doi.org/10.6028/jres.097.026· OSTI ID:1628726

Quinn, G. D. ^[1]; Salem, J. ^[2]; Baron, I. ^[3]; Cho, K. ^[3]; Foley, M. ^[4]; Fang, H. ^[5]

National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); DOE/OSTI
NASA Lewis Research Center, Cleveland, OH (United States)
Worcester Polytechnic Institute, MA (United States)
St. Gobain, Norton Industrial Ceramics Corp., Northboro, MA (United States)
Allied-Signal, Garrett Auxiliary Power Division, Phoenix, AZ (United States)

This report presents the results obtained by the five U.S. participating laboratories in the Versailles Advanced Materials and Standards (VAMAS) round-robin for fracture toughness of advanced ceramics. Three test methods were used: indentation fracture, indentation strength, and single-edge precracked beam. Two materials were tested: a gas-pressure sintered silicon nitride and a zirconia toughened alumina. Consistent results were obtained with the latter two test methods. Interpretation of fracture toughness in the zirconia alumina composite was complicated by R-curve and environmentally assisted crack growth phenomena.

Research Organization:: Allied-Signal, Garrett Auxiliary Power Division, Phoenix, AZ (United States); NASA Lewis Research Center, Cleveland, OH (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); St. Gobain, Norton Industrial Ceramics Corp., Northboro, MA (United States); Worcester Polytechnic Institute, MA (United States)

Sponsoring Organization:: US Department of Commerce; USDOE Office of Science (SC)

Grant/Contract Number:: AC05-84OR21400

OSTI ID:: 1628726

Journal Information:: Journal of Research of the National Institute of Standards and Technology, Journal Name: Journal of Research of the National Institute of Standards and Technology Journal Issue: 5 Vol. 97; ISSN 1044-677X

Publisher:: National Institute of Standards (NIST)Copyright Statement

Country of Publication:: United States

Language:: English

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Hardness and Fracture Toughness of Pressureless-Sintered Boron Carbide (B4C) Lee, Hyukjae; Speyer, Robert F. Journal of the American Ceramic Society, Vol. 85, Issue 5 https://doi.org/10.1111/j.1151-2916.2002.tb00260.x	journal	May 2002
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47 OTHER INSTRUMENTATION
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
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advanced ceramic
alumina
fracture
fracture toughness
indentation
round-robin
silicon nitride
zirconia

Fracture toughness of advanced ceramics at room temperature

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References (13)

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