(中南工業(yè)大學(xué)粉末冶金國(guó)家重點(diǎn)實(shí)驗(yàn)室， 長(zhǎng)沙 410083)
摘 要: 通過(guò)實(shí)驗(yàn)設(shè)計(jì)，對(duì)比研究了有、無(wú)表面開(kāi)孔隙的Ni-Mn粉末觸媒在六面頂壓機(jī)上合成金剛石效果的差異。結(jié)果表明：Ni-Mn粉末觸媒表面存在開(kāi)孔隙，能提高合成腔體內(nèi)觸媒和石墨的接觸面積和單位體積中金剛石的形核率，從而有利于高單產(chǎn)金剛石的合成；而粉末觸媒表面的開(kāi)孔隙存在與否，對(duì)合成金剛石的晶形無(wú)明顯影響。
關(guān)鍵字: 金剛石 粉末觸媒 開(kāi)孔隙
（Powder Metallurgical State Key Laboratory, Central South University of Technology, Changsha 410083）
Abstract:The effect of open-pore of Ni-Mn powder catalyst on diamond synthesis was studied. The results showed that open pore can rise the contact area of powder catalyst and graphite powder and increase the diamond nucleation as well, so open pore is useful for the high output of diamond; however open pore in Ni-Mn powder catalyst hasn't influence on the synthetic diamond shape .
Key words: diamond powder catalyst open pore
