Characterization and formation process of spinel (MgAl2O4) prepared by alkoxide (MgAl2(i-OC3H7)8) method.

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  • 複合アルコキシド (MgAl<sub>2</sub>(<i>i</i>-OC<sub>3</sub>H<sub>7</sub>)<sub>8</sub>) からのスピネル (MgAl<sub>2</sub>O<sub>4</sub>) の生成過程とその特性
  • 複合アルコキシド(MgAl2(i-OC3H7)8)からのスピネル(MgAl2O4)の生成過程とその特性〔英文〕
  • フクゴウ アルコキシド MgAl2 i OC3H7 8 カラ ノ スピネル M

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Abstract

Multiorganometallic compounds made by modifying the synthetic method studied by Thomas were used to prepare high purity submicron-size MgAl2O4 powders. Hydrolytic decomposition of MgAl2(i-OC3H7)8 and the subsequent calcination process produced submicron powders of MgAl2O4 of more than 99.98+% purity: 50Å to 100Å at 800°C and about 0.1μm at 1200°C, and with purity of 99.98+% The major contaminant was Si from silicon grease. Homogeneity and stoichiometry of the powders after calcination were studied by transmission electron microscopy and chemical analysis. X-ray and infrared analyses indicated that the formation process of MgAl2O4 from MgAl2(i-OC3H7)8 depends strongly on the atmosphere in hydrolysis of MgAl2(i-OC3H7)8 and the subsequent calcination temperature.

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