摘要
研究了碳对ＺｒＯ２相结构的影响．结果表明，在一定条件下碳可以进入到ＺｒＯ２晶格中，对ＺｒＯ２的高温相产生稳定化作用．对纯ｍ－ＺｒＯ２，２Ｙ－ＴＺＰ，３Ｙ－ＴＺＰ材料进行渗碳处理后，其中的ｍ－ＺｒＯ２相不同程度地转变为ｔ－ＺｒＯ２相并能保留到室温．从晶体学角度对比并分析了碳、氮元素在ＺｒＯ２晶格中所处的位置。
The effects of carbon on zirconia phase structure were studied. It is shown that carbon can enter the lattice of zirconia under certain conditions and stabilize the high-temperature polymorph of zirconia. Being carburized, a part of monoclinic phase in pure m-ZrO2, 2Y-TZP and 3Y-TZP materials transforms into tetragonal phase. The sites of carbon and nitrogen particles in zirconia lattice are compared and analyzed by using crystallographic view. Carbon mainly exists in the octahedral interstitials in zirconia lattice as pure atoms.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1998年第2期230-235,共6页
Journal of The Chinese Ceramic Society
关键词
氧化锆
碳
相结构
稳定性
陶瓷
zirconia
carbon
phase structure
stability
