Preliminary Study of the Phase Equilibria Diagram of Tho2‐SiO2
Preliminary Study of the Phase Equilibria Diagram of Tho2‐SiO2
复制标题
Tho2-SiO2相平衡图的初步研究
DOI：
10.1111/j.1151-2916.1959.tb14069.x
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发表时间：
1959
影响因子：
3.9
通讯作者：
L. A. Harris
中科院分区：
文献类型：
--
作者：
L. A. Harris
对THO_2-SiO_2体系的初步研究支持CaF_2-BeF_2体系是该硅酸盐体系的模型这一前提。唯一存在的化合物是单斜晶型的ThSiO4(绿柱石)，它在1975°F 50°C的温度下不一致地熔化为Tho2和液体，从一系列粉末X射线光谱分析中确定。初步测定的共晶温度为1700°±10°C，SiO_2含量大于95%。没有观察到固溶体区域。淬火样品在改进的氧气-乙炔炉中烧制，该炉的开发是为了确保准确的温度读数，并保留在空气中加热样品的效果。
A preliminary study of the system Tho2-SiO2 supported the premise that the system CaF2 BeF2 is a model for this silicate system. The only compound present was the monoclinic form of ThSiO4 (huttonite), which melted incongruently to Tho2 and liquid at 1975° f 50° C. as determined from a series of powder X-ray spectrometer patterns. The eutectic temperature as tentatively determined is 1700°± 10°C. at a composition of greater than 95% by weight of Sio2. No solid-solution areas were observed. The quenching samples were fired in a modified oxygen-acetylene furnace which was developed to insure accurate temperature readings and to retain the effects of heating the samples in air.