マイクロ波加熱法によるアルミナの接合

概要

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Joining of alumina ceramics was studeid by the microwave heating method.Samples were the sintered 99% alumina rods,6 mm in diameter. The results are summarized as follows: (1)The joining was carried out easily by covering the joining part with mullite insulating fire brick during application of microwave at the surface temperature on the joining part of higher than 1400℃ and under the pressure at joining plane of 0.13-0.5 MPa. (2)There was peak in the bending strength-heating time curve. The maximal value increased and the time to give the maximum decreased with increasing joining temperature. (3)The hardness value of joined part was larger than that of the others. The grain size at the joined part increased during microwave heating. (4) Joining was so good that the joined interface was hard to distinguish from other part by SEM observation of cross section of the joined part.
社団法人日本セラミックス協会の論文
1989-06-01