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Segregant-enhanced fracture in magnesium oxide

Conner, C. L. and Faber, K. T. (1990) Segregant-enhanced fracture in magnesium oxide. Journal of Materials Science, 25 (6). pp. 2737-2742. ISSN 0022-2461. doi:10.1007/BF00584873.

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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.

Item Type:Article
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Faber, K. T.0000-0001-6585-2536
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.
Funding AgencyGrant Number
NSFDMR 8351476
NSFDMR 841859
Issue or Number:6
Record Number:CaltechAUTHORS:20140908-181329879
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49444
Deposited By: George Porter
Deposited On:12 Sep 2014 23:44
Last Modified:10 Nov 2021 18:44

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