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Report No.
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Trial fabrication of beryllide using plasma sintering method

Nakamichi, Masaru; Shibayama, Tamaki*; Tatenuma, Katsuyoshi*; Yonehara, Kazuo

Beryllium intermetallic compounds (beryllides) are the most promising advanced neutron multipliers. In this study, it reports on the preliminary results of beryllide synthetic using a plasma sintering method. The plasma sintering results in starting powder particle surface activation that enhances powder particle sinterability and reduces high temperature exposure. Trial fabrication test of TiAl intermetallic as an alternative material of beryllide was carried out using mixed with Ti and Al powder particles. The formations of TiAl and Ti$$_{3}$$Al intermetallics were identified at 1223 K for 5 min under 34 MPa pressure using starting mixed powder particles of Ti and Al. From the result of this trial fabrication, it is assumed that the intermetallic compound as beryllide could be directly synthesized by the plasma sintering method from mixed powder particles of Be and Ti at a lower temperature than melting point. In this report, trial synthetic results of beryllide will be also present.

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