Mass spectrometric study of the evaporation of MgAl₂O₄ spinel

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• 作者：S. I. Shornikov
• 关键词：Knudsen effusion mass spectrometric method ; thermodynamics of evaporation ; magnesia spinel
• 刊名：Russian Journal of Physical Chemistry A
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：91
• 期：1
• 页码：10-16
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Physical Chemistry;
• 出版者：Pleiades Publishing
• ISSN：1531-863X
• 卷排序：91

文摘

The evaporation of MgAl₂O₄ spinel is studied via high-temperature Knudsen effusion mass spectrometry in the temperature range of 1850–2250 K. In the gas phase, molecular components typical of the simple oxides in the spinel and traces of gaseous complex oxide MgAlO are identified above the samples. The resulting values of the partial vapor pressures of the molecular components contained in the gas phase over the spinel are compared with those corresponding to simple oxides for the first time.