CaltechAUTHORS
Published June 1990 | Version public
Journal Article Metadata-only

Segregant-enhanced fracture in magnesium oxide

Creators

Abstract

The fracture toughness of MgO has been studied as a function of the concentration of an intergranular LiF phase, added to enhance densification. The fracture toughness increases as lithium and fluorine are volatilized from the MgO while the fracture morphology changes from intergranular to transgranular. The data are interpreted with respect to competing embrittlement and crack-deflection toughening mechanisms, and a scheme is proposed for determining conditions for embrittlement and toughening.

Additional Information

© 1990 Chapman and Hall. Received 5 September 1988 and accepted 22 February 1989. This work was sponsored by the National Science Foundation under Grant No. DMR 8351476 and the National Science Foundation Materials Research Laboratory Grant No. DMR 841859.

Additional details

Identifiers

Eprint ID
49444
Resolver ID
CaltechAUTHORS:20140908-181329879

Funding

NSF
DMR 8351476
NSF
DMR 841859

Dates

Created
2014-09-12
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Updated
2021-11-10
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