A new apparatus for simultaneous measurement of acoustic emission and differential thermal analysis and its application to dehydration, phase transition, and decomposition studies of several inorganic salts.

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概要

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• A new apparatus for simultaneous measurements of acoustic emission (AE) and differential thermal analysis (DTA) is described. Two fused silica cells are used as the sample and reference holders and a fused silica rod, fixed at the bottom of the sample holder, acts as the waveguide for AE signals emitted in the sample. A 140 KHz resonance frequency sensor is attached at the end of the rod to detect the AE signals which are converted by an AE tester to three parameters, the wave form, the event count rate, and the cumulative count. The technique has been successfully utilized to study the dehydration, phase transition, and decomposition of NaN<SUB>3</SUB>, KNO<SUB>3</SUB>, KClO<SUB>4</SUB>, CaCrO<SUB>4</SUB>·0.1H<SUB>2</SUB>O, and MgCl<SUB>2</SUB>· 6H<SUB>2</SUB>O, for which the interesting results are reported.

• 公益社団法人 日本化学会の論文

著者

• Shimada Shiro

  Department of Applied Chemistry, Faculty of Engineering, Hokkaido University

• Furuichit Ryusaburo

  Analytical Chemistry Laboratory, Faculty of Engineering, Hokkaido University

関連論文

• Effect of Additive on Solid State Reaction. II. A Thermoanalytical Study of the Effect of Fluorides on the Formation of MgAl2O4 in Initial Stage
• A new apparatus for simultaneous measurement of acoustic emission and differential thermal analysis and its application to dehydration, phase transition, and decomposition studies of several inorganic salts.
• Effects of Additives on Solid State Reaction. I. A Kinetic Study of the Effects of Halides of the Formation of MgAl2O4
• Effects of additives on solid state reaction. III. Effects of halide additives on the formation of MgFe2O4.

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