SYNTHESIS AND STUDY OF YTTRIALITE
SYNTHESIS AND STUDY OF YTTRIALITE
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发表时间：
2007
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通讯作者：
Jurv Irol;Hanolo JottNsor't
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作者：
Jurv Irol;Hanolo JottNsor't
在900-1600 ℃的温度下，在空气中合成了稀土焦硅酸盐Rg ~（3+）Si_2O_2 ~（1Br+）：Sc，In，RE ~（1+），其中RE为Lu，Yb，Tm，Er，Ho，Y，Dy和Gd。在1300 ℃空气中和700 ℃ 2.5kbar压力下，SczSiOz（钙钛矿）和B-YzSiOz之间存在固溶体系列。在900 - 1500 ℃的温度下研究了YzSiOs-YzSLOz-YzSiaOg的组成范围。通过对天然矿物的重结晶和无钠凝胶在空气和水压下直接合成的结果，确定“高钇铝石”为a-（Y，RE）gSizOz。被描述为"低钇铝石”的相是近似式为R（Y，RE）5Si 6或的复合硅酸盐，其中R包括多种离子，例如H+、Na+、Fe 2+、Mg 2+、Mn 2+、P 2+、Al 3+、Tha+和Zra+。
The rare earth pyrosilicates, Rg3+SizOz 1Br+:Sc,In,REl where RE:Lu,Yb,Tm,Er, Ho,Y,Dy, and Gd) were synthesized at temperatures from 900-1600"c in air. A solid-solution series exists between SczSirOz (thortveitite) and B-YzSizOz at 1300'C in air and at 700oC under 2.5 kbar. The compositional range from YzSiOs-YzSLOz-YzSiaOg was investigated at temperatures from 900 to 1500'c. "High-yttrialite" was identified as a-(Y,RE)gSizOz from the results of recrystallization of the natural minerals and by direct synthesis from sodium-free gels both in air and under water pressure. The phase described as ,,low yttrialite" is a compiex silicate of approximate formula R(Y,RE)5Si6or where R includes ions of great variety, such as H+, Na+, Fe2+, Mg2+, Mn2+, p":+, A13+, Tha+ and Zra+.