摘要
本文用DTA和XRD法研究了Na_2O-Al_2O_3-WO_3三元系中的Al_2(WO_4)_3-Na_2WO_4截面的相平衡关系。在这截面中发现一新化合物AlNa_3(WO_4)_2。以45mol％Na_2WO_4为助熔剂生长了Cr^(3+):Al_2(WO_4)_3晶体。
Phase equilibrium relationship of the Al_2(WO_4)_3-Na_2WO_4 section in the ternary system Na_2O-Al_2O_3-WO_2 has been studied by means of DTA and XRD. In this section there exists a new compound AINa_2(WO_4)_3. It melts congruently at 720±3℃. AINa_2(WO_4)_(2-) Na_2 WO_4 forms a eutectic system. Its eutectic reaction occurs at 603±3℃ and 92mol%Ha_2 WO_4·Cr^(2+3)Al_2(WO_4)_3 crystal has been grown by use of 45mol%Na_2WO_4 flux. Thecharacteristic of solution has been studied with TG method.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1989年第4期355-358,共4页
Journal of The Chinese Ceramic Society
基金
中国科学院资金
