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fengli110535

[交流] 50金币请教高手指教硅酸盐类物质的晶形及其转变温度

请教高手指教硅酸盐类物质的晶形及其转变温度
有谁知道下列物质有哪几种晶形,其相应的结晶温度(或者转变温度)是多少,谢谢!
Ba2SiO4, Sr2SiO4, Ca2SiO4, Ba3SiO5, Sr3SiO5, Ca3SiO5
最好请注明出处,谢谢!
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fengli110535

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buffaloli(金币-18,VIP+0):应请求扣除!
谢谢提供,请版主转移18金币
5楼2007-11-16 17:47:23
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xxqm

木虫 (著名写手)

催化吸附分离净化问题解决者

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buffaloli(金币+6,VIP+0):谢谢参与!
Strontium Orthosilicate, Sr2SiO4


Subcategory: Oxide, Silicon; Oxide

Material Notes:
CAS Number: 13597-55-2

Physical Form: Orthorhombic Crystals
行善就是积德
2楼2007-11-16 11:28:06
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xxqm

木虫 (著名写手)

催化吸附分离净化问题解决者

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buffaloli(金币+6,VIP+0):谢谢参与!
Phases in the System Ba2SiO4-Ca2SiO4
B. MATKOVIĆ,11Ruder Bošković Institute, 41001 Zagreb, Yugoslavia S. POPOVIĆ11Ruder Bošković Institute, 41001 Zagreb, Yugoslavia, and B. GRŽETA11Ruder Bošković Institute, 41001 Zagreb, YugoslaviaR. HALLE22JUCEMA, The Association of the Yugoslav Cement Producers, 41000 Zagreb, Yugoslavia1Ruder Bošković Institute, 41001 Zagreb, Yugoslavia2JUCEMA, The Association of the Yugoslav Cement Producers, 41000 Zagreb, Yugoslavia
The system Ba2SiO4-Ca2SiO4 was studied by heating mixtures of Ba2SiO4 and Ca2SiO4 at 1723 K. Six distinct phases resulted; they were examined by both X-ray diffraction and differential thermal analysis. The phases β-(Ba0.05Ca1.95)SiO4 and α-(Ba0.15Ca1.85)SiO4 are isostructural with corresponding high-temperature modifications of Ca2SiO4. The X phase (Ba0.48Ca1.52SiO4) is orthorhombic, is a pure phase rather than a solid solution, and is defined for the first time in the present work. The T phase (Ba1.31Ca0.69SiO4) is hexagonal and interpreted in terms of a unit cell with a doubled c parameter, in contrast with literature data.
行善就是积德
3楼2007-11-16 11:28:55
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xxqm

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催化吸附分离净化问题解决者

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buffaloli(金币+6,VIP+0):谢谢参与!
Journal of the American Ceramic Society
Volume 69 Issue 2 Page 132-134, February 1986

To cite this article: B. MATKOVIĆ, S. POPOVIĆ, B. GRŽETA, R. HALLE (1986)
Phases in the System Ba2SiO4-Ca2SiO4
Journal of the American Ceramic Society 69 (2), 132–134.
doi:10.1111/j.1151-2916.1986.tb04716.x
行善就是积德
4楼2007-11-16 11:29:28
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