The refractive indices of alkali halide single melts have been measured with high accuracy at the wave length of 470 to 670nm. The electronic polarizabilities of the melts have been determined from the measured refractive indices by Clausius-Mossotti equation. The electronic polarizabilities of the melts have the positive temperature dependence. The relation between the electronic polarizability and the structure of the salts has been examined. Factors which affect the electronic polarizabilities of the melts have been investigated.

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[in Japanese]

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In December 1989, the International Association for the Properties of Water and Steam issued a release on the Pressure along the Melting and the Sublimation Curves of Ordinary Water Substance. This report describes the contents of the release.

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The characteristics of thermal properties were revealed for clothing materials. The roles by the mechanism of heat transfer by radiation and air passage were discussed in detail for proper understanding of thermal properties of clothing materials. This report dealt with dry heat transfer.

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The wettability of solid oxides by liquid metals provides useful information for the fabricationofmetalmatrixcomposites, metalceramic joining and many other metallurgical phenomena. This paper covered several factors affecting the wettability of solid oxides by liquidmetalsandsomerelatedphenomena.
It was described that wettability are significantly affected by the surface structure of solid oxides, stability of oxides, alloying elements in liquid metals, and oxygen in an atmosphere.

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