610 マシナブル・ガラス・マイカ複合材料の機械的特性

概要

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The effects of finer particle size of starting powders, addition of pinning particles, and precipitation strengthening using celsian have been examined to limit the exaggerated growth of mica grains in machineable glass-matrix composites. Grinding the starting powder reduced the large interlocked structure and contributed to the improvement of sinterability and the reduction of grain size and related size of residual pores. The doped TiO_2 acted as the pinning sites to improve sinterability and strength. The doped YTZ was effective pinning sites. The obtained fine grained material showed improved strength, hardness and fracture toughness. Celsians once dissolved into the glass to promote densification below 1080℃ and improved the mechanical properties. Annealing the materials at 1120℃ enabled the precipitation of fine celsian particles.
一般社団法人日本機械学会の論文
2002-08-23