124 ダイヤモンドが熱力学的に安定ではない条件下でのダイヤモンド分散ジルコニヤ複合体の加圧焼結(O.S. 機械材料・新素材II)(機械材料・新素材)

概要

論文の詳細を見る
Diamond/PSZ composite was tried to be sintered densely by both routes of hot isostatic pressing (HIPing) and hot pressing (HPing). Both sintering conditions are thermodynamically unstable for diamond. When the composites were sintered by the HIPing under 150 MPa, at 1423 K for 10.8 ks and the HPing under 36 MPa at 1673 K for 10.8 ks, no graphitization of the diamond and no reaction products were detected in the composites by an XRD analysis. The relative density was above 97% in the composites containing diamond up to 30 vol% sintered by HIPing and in those up to 10 vol% by HPing. Dispersing diamond was effective to restrain the zirconia grain growth during the sintering in HIPing.
社団法人日本機械学会の論文
2000-10-03