期刊
CERAMICS INTERNATIONAL
卷 40, 期 4, 页码 5575-5581出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.10.149
关键词
A. Hot isostatic pressing; C. Optical property; C. Mechanical property; D. Spinels
资金
- Naval Materials Research Laboratory, DRDO (Ambernath, India) [NMRL/MMG/0401/04/NMR230/MMT/01/12-13]
Transparent polycrystalline Magnesium Aluminate Spine! (MgAl2O4) specimens were formed by colloidal slip casting (SC) and uniaxial powder compaction (UDP) routes using powder with identical properties. SC and UDP formed specimens which were pressureless sintered and farther subjected to hot isostatic pressing to eliminate the residual porosities and to achieve the transparency. SC samples exhibited better transmission compared to UDP samples. Mechanical properties were found to be lower by 10-15% for UDP samples and are complemented by the total fracture energy release rate (J(c) and J(R)-delta) curves. Finally, the optical and mechanical properties were correlated with the processing routes. (c) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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