Quinn, G.
, Swab, J.
and Motyka, M.
(2003),
Fracture Toughness of Toughened Silicon Nitride by ASTM C 1421, Journal of the American Ceramic Society
(Accessed April 25, 2024)
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Fracture Toughness of Toughened Silicon Nitride by ASTM C 1421
Published
Author(s)
, , M J. Motyka
Abstract
The fracture toughness of a commercial sintered reaction-bonded silicon nitride was measured by the three complementary test methods in ASTM C 1421. Precracks ranged from tiny artificial flaws introduced by Knoop indentation to millimeter long precracks in single-edge precracked beams. Although this material probably has a rising R-curve, the fracture values from the three methods were in good agreement.Citation
Journal of the American Ceramic Society
Volume
86
Issue
No. 6
Pub Type
Journals
Keywords
ASTM C 1421, chevron notch beam, fracture toughness, reference material, silicon nitride, silicon-edge precracked beam, surface crack in flexure
Citation
Created June 1, 2003, Updated February 19, 2017