ENHANCED DENSIFICATION OF BOEHMITE SOL-GELS BY alpha -ALUMINA SEEDING.

Masato Kumagai, Gary Lynn Messing

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

The seeded gel sintered to 98% of theoretical density after 100 min at 1200 degree C, whereas the unseeded gel had to be sintered at 1600 degree C to reach 94% of theoretical density. This difference results primarily from nucleation by the alpha -alumina seeds and enhanced transformation of the boehmite to alpha -alumina, such that a uniform, well-ordered, fine-grained alpha -alumina microstructure forms prior to densification.

Original languageEnglish (US)
JournalJournal of the American Ceramic Society
Volume67
Issue number11
StatePublished - Nov 1984

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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