No.5（2002）8.Development of the structure material by the water plasma thermal spraying method which used Miyake-jima volcanic ashes as the main materials

Akio MOTOI, Seiji KATAOKA, Takezo SASAKI, Masaharu NAKAMORI and Sadayose NAKAJIMA

As one of the effective uses in technology of the volcanic ashes which fell in large quantities at the time of the eruption of Miyake-jima volcano, the development of a ceramic tile tone building material product can be considered. The ceramic tile tone sample by water plasma thermal spraying which uses volcanic ashes frem Miyake-jima as the main material was manufactured, and performance evaluation as a building materials was carried out Consequently remelting processing is performed after thermal spraying and it takes on a tile tone appearance. Although it is necessary to use a corrosion-resistant base material in a salt-water environment, corrosion resistance and membranous adhesion nature are excellent in a standard living environment. Moreover, most influences of the mechanical properties on the basis material of the heat by thermal spraying cannot be found, and the product of the ceramic tile tone by thermal spraying is excellent as a building material.

Keywords
volcano ashes, water plasma, thermal sprayingmethod, ceramic tile

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