Fabrication of translucent magnesium aluminum spinel ceramics

Ji Guang Li, Takayasu Ikegami, Jong Heun Lee, Toshiyuki Mori

Research output: Contribution to journalArticle

102 Citations (Scopus)

Abstract

A precursor for magnesium aluminum spinel powder, composed of crystalline ammonium dawsonite hydrate (NH4Al(OH)2CO3·H2O) and hydrotalcite (Mg6Al2(CO3)(OH)16·4H2O) phases, was synthesized via precipitation, using ammonium bicarbonate as the precipitant. The precursor was characterized by differential thermal analysis/thermogravimetry, X-ray diffractometry, and scanning electron microscopy. Reactive spinel powder, which could be densified to translucency under vacuum at 1750 °C in 2 h without additives, was obtained by calcining the precursor at 1100 °C for 2 h.

Original languageEnglish
Pages (from-to)2866-2868
Number of pages3
JournalJournal of the American Ceramic Society
Volume83
Issue number11
Publication statusPublished - 2000 Nov 1
Externally publishedYes

Fingerprint

hydrotalcite
Aluminum
ceramics
Powders
spinel
Magnesium
magnesium
ammonium
Ammonium bicarbonate
aluminum
dawsonite
Fabrication
differential thermal analysis
thermogravimetry
Hydrates
Ammonium Compounds
bicarbonate
Differential thermal analysis
X ray diffraction analysis
Thermogravimetric analysis

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Fabrication of translucent magnesium aluminum spinel ceramics. / Li, Ji Guang; Ikegami, Takayasu; Lee, Jong Heun; Mori, Toshiyuki.

In: Journal of the American Ceramic Society, Vol. 83, No. 11, 01.11.2000, p. 2866-2868.

Research output: Contribution to journalArticle

Li, Ji Guang ; Ikegami, Takayasu ; Lee, Jong Heun ; Mori, Toshiyuki. / Fabrication of translucent magnesium aluminum spinel ceramics. In: Journal of the American Ceramic Society. 2000 ; Vol. 83, No. 11. pp. 2866-2868.
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