Phase equilibria and glass formation studies in the (1 ?#xa0;x)TeO₂?span style='font-style: italic'>xCdO (0.05 ?#xa0;x ?#xa0;0.33 mol) system

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• 作者：G.  ; Karaduman ; A.E.  ; Ersundu ; M.  ; Ç ; elikbilek ; N.  ; Solak ; S.  ; Aydin  ; ;   ; ^{saydin@itu.edu.tr}
• 关键词：TeO₂&ndash ; CdTe₂O₅ ; Glass ; Thermal properties ; Microstructure-final
• 刊名：Journal of the European Ceramic Society
• 出版年：2012
• 出版时间：March 2012
• 年：2012
• 卷：32
• 期：3
• 页码：603-610
• 全文大小：812 K

文摘

Phase equilibria and glass formation studies of the (1 ?x)TeO₂?i xmlns="""">xCdO system (0.05 ?x ?0.33 mol) were realized by using differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The samples were prepared by applying a conventional melt-quenching technique at 800 ¡ãC. The glass formation range of the system was determined as 0.05 ?x < 0.15 and the sample containing 10 mol % CdO showed the highest glass stability. Crystallization behavior of the TeO₂¨CCdO glasses was investigated and formation and/or transformation of different phases were detected for each crystallization reaction. In order to obtain thermal stability of the system, as-cast samples were heat-treated above all crystallization reaction temperatures at 550 ¡ãC for 24 h. A binary eutectic: liquid ?TeO₂ + CdTe₂O₅ was detected at 638 ¡À 4 ¡ãC. Crystallization behavior of the TeO₂¨CCdO glasses and microstructural characterization of the TeO₂¨CCdTe₂O₅ system was realized.