Watari F, Nishimura F, Nakamura H, Fukumoto R, Morita N
Department of Dental Technology 1, Tokyo Medical and Dental University.
Shika Zairyo Kikai. 1990 Sep;9(5):734-40.
The zirconia investments with calcia were studied of the compressive strength, setting expansion, thermal expansion, total expansion, thermogravitometry, differential thermal analysis on fabrication method, concentration, particle size of zirconia, calcia and mixing liquid. Addition of calcia caused the change from contraction to expansion in setting expansion. The optimum concentration of calcia was determined to be 10 mol% as judged from total expansion, strength and operability.
对含氧化钙的氧化锆包埋材料进行了研究，涉及抗压强度、凝固膨胀、热膨胀、总膨胀、热重分析、差示热分析，研究内容包括制作方法、氧化锆、氧化钙的浓度、粒径以及混合液。氧化钙的添加导致凝固膨胀从收缩变为膨胀。从总膨胀、强度和操作性判断，氧化钙的最佳浓度确定为10摩尔%。
