ジルコニウム合金上に化学級密化法によって形成した酸化クロムコーティング膜の機械的特性

概要

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Tritium, a fusion reactor fuel, is produced by neutron- irradiation of Li-containing ceramics. The container for Li-containing ceramics is made of zirconium alloys, which are embrittled by tritium. Ceramic coating was applied to the zirconium alloy to prevent the hydrogen embrittlement, and the tension and collapse tests, and the acoustic emission measurement during these tests were conducted to understand the mechanical properties of the ceramic coating film and the underlying zirconium alloys. Results of these tests revealed that the coated zirconium alloys have a sufficiently high strength for the container. Furthermore, the acoustic emission signal and the stress change were observed and associated with the peeling and cracking of the ceramic coating film.
社団法人日本セラミックス協会の論文
1990-07-01