| 辉石相变的矿物物理特征及滑石瓷老化机理的探讨 |
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| 引用本文： | 徐培苍,张晓云,李恩林.辉石相变的矿物物理特征及滑石瓷老化机理的探讨[J].矿物学报,1988(2). |
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| 作者姓名： | 徐培苍 张晓云 李恩林 |
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| 作者单位： | 西安地质矿产研究所 西安
(徐培苍，张晓云)，西安地质矿产研究所 西安(李恩林) |
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| 摘 要： | 本文采用X射线衍射物相定量分析,透射电子显微镜及X射线电子能谱分析研究了原顽辉石→斜顽辉石的相变特征,提出了滑石瓷老化的实质是当原顽辉石Pbcn相向斜顽辉石P2_1/c相转变时,由于体积缩小和钡玻璃相拉应力的减少,导致滑石瓷表面产生微裂缝,从而加剧老化的过程。
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| 关 键 词： | 辉石 陶瓷 X射线物相分析 透射电子衍射术 X射线电子能谱术 |
MINERAL PHYSICAL CHARACTERISTICS OF PYROXENE PHASE TRANSFORMATION AND A PROBE INTO THE MECHANISM OF TALC PORCELAIN AGING |
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| Xu Peicang Zhang Xiaoyun Li Enlin.MINERAL PHYSICAL CHARACTERISTICS OF PYROXENE PHASE TRANSFORMATION AND A PROBE INTO THE MECHANISM OF TALC PORCELAIN AGING[J].Acta Mineralogica Sinica,1988(2). |
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| Authors: | Xu Peicang Zhang Xiaoyun Li Enlin |
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| Abstract: | The characteristics of phase transformation from protoenstatite (Pbcn) into clinoenstatlte(P2_1/c)have been studied by means of X-ray diffractometric-structural phase quantitative analysis, transmission electron microscopy(TEM) and X-ray photoelectron spectroscopy(XPS).The mechanism of talc porcelain aging has been proposed. When phase Pbcn is transformed into phase P2_1/c, the volume of phase P2_1/c will decrease by about 5 % and the pull stress of phase Ba-glass will decrease, too. As a result, microcracks will appear on the talo porcelain, thus promoting the procedure of talc porcelain aging. |
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| Keywords: | pyroxene porcelain X-ray phase analysis transmission electron diffraction technique X-ray photoelectron spectroscopy |
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