403 加熱された焼結体の内部温度モニタリングに関する検討(材料・加工・構造物の信頼性を支える評価・モニタリング技術(1),ものづくりにおける基礎研究と先端技術の融合)

概要

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In the field of material science and engineering, it is often required to measure internal temperature of a material being heated at high temperatures. In particular, in sintering or moulding processes for ceramics as well as metals, not only temperature but also its distribution inside the material is strongly required to be measured because such temperature distribution plays an important role in the processes at high temperature. In this work, an effective ultrasonic technique with transverse wave has been applied to alumina and steel for monitoring the one-dimensional temperature distribution during heating. It is expected that the use of transverse wave provides improvement of the accuracy in determining temperature because of its relatively slower velocity. The temperature distributions and their transient variations determined by the ultrasonic method almost agree with those obtained using thermocouples or an infrared radiation camera. Thus, it is demonstrated that the ultrasonic method with transverse wave is useful for temperature monitoring even for sintered material such as alumina.
一般社団法人日本機械学会の論文
2010-11-27