Applicability of nitride powders as foaming agents in superplastically foamed ceramics

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概要

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• The applicability of several nitride powders for use as foaming agents in superplastically foaming ceramics was investigated. Ceramic mono-foams were fabricated successfully using AlN and Si3N4 foaming agents. By using BN as a foam agent, on the other hand, we cannot fabricated well developed ceramic foams due to cracking and fracture. When the quantity of foaming agent was increased, the porosity increased to a certain amount, then saturated. With equal amounts of Si3N4, the porosity from the dispersed foaming agent was higher than that obtained from a monolithic compact without mixing, which was similar to the case of SiC foam agent.

著者

• Hayashi Hidetaka

  Division Of Chemistry And Biochemistry Graduate School Of Natural Science And Technology Okayama Uni

• KISHIMOTO Akira

  Division of Chemistry, Graduate School of Science, Hokkaido University

• YAMAOKA Hiroshi

  Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama U

• Kishimoto Akira

  Division Of Chemistry Graduate School Of Science Hokkaido University

• Kishimoto Akira

  Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University

• Yamaoka Hitoshi

  Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University

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