摘要
ＣａＺｒＯ３在ＣａＯ－ＺｒＯ２体系化合物中ＣａＯ含量最高且最稳定的一种化合物．利用ＣａＣＯ３和ｍ－ＺｒＯ２为原料在１４５０℃预先合成后又于１６００℃重烧，其ＣａＺｒＯ３晶粒发育更加完善．利用这种方法合成的ＣａＺｒＯ３为原料，不添加助烧剂在１７００℃时就可以获得接近理论密度的烧结体，其显微结构特征是ＣａＺｒＯ３颗粒紧密堆积，而且晶形发育极其良好．
CaZrO_3 containing the highest CaO colltellt of compounds in system CaO-ZrO_2 is a potential refractory material. A satisfactory CaZrO_3 raw material as formed from equimolar proportions of CaCO_3 and ZrO_2 subjected to two-stage synthesis : preparing first at 1450℃ and then refiring to 1 600 ℃. A close approach to theoretical density specimen was obtained with finely ground the raw material at 1700 ℃ sintering. By SEM the grains of CaZrO_3 with perfect morphology was found to be linking closely in it.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2000年第1期1-3,共3页
Journal of University of Science and Technology Beijing
基金
"国家九五攻关资助!No 96-522-01-20
关键词
锆酸钙
合成
烧结
显微结构
耐火材料
calcium zirconate
synthesis, sintering, microstructure
