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首页> 外文期刊>Journal of the European Ceramic Society >Crystallization pathways in glass-ceramics by sintering cathode ray tube (CRT) glass with kaolin-based precursors
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Crystallization pathways in glass-ceramics by sintering cathode ray tube (CRT) glass with kaolin-based precursors

机译：通过烧结阴极射线管（CRT）玻璃与基于高岭土的前体烧结阴极射线管（CRT）玻璃结晶途径

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摘要

The crystallization mechanisms for the formation of glass-ceramics by sintering CRT glass with kaolin-based precursors were investigated by quantitatively determining the crystalline and amorphous phases in the products. Amorphization of sintered products was observed in CRT/kaolinite and CRT/mullite glass-ceramics systems at 700–900?°C. With the increase of temperature, the crystallochemical formation of lead feldspar and orthoclase was detected. Orthoclase was found to be the major crystalline phase in both CRT/kaolinite and CRT/mullite systems at 1000–1100?°C. When the temperature increased to 1000–1100?°C, lead feldspar was formed as the only crystalline phase to host Pb. The leaching tests suggested that the glass-ceramic product sintered by CRT/kaolin-based precursors has stronger resistance against acid attack because of the incorporation of lead into lead feldspar crystal protected by glass matrix. The incorporation of CRT glass into glass-ceramics provides a promising strategy for reducing the environmental hazard of CRT glass.
机译：通过定量确定产物中的结晶和无定形相，研究了通过烧结基于高岭土的前体的CRT玻璃形成玻璃陶瓷的结晶机制。在CRT /高岭石和CRT / MULLITE玻璃陶瓷系统中观察到烧结产物的杂化在700-900℃。随着温度的增加，检测铅长石和正交酶的结晶形成。发现正交酶是CRT /高岭石和CRT / MULLITE系统中的主要结晶相，在1000-1100Ω℃下。当温度增加到1000-1100°C时，引线长石形成为唯一的晶相对于宿主Pb。浸出试验表明，由于CRT /高岭土的前体烧结的玻璃陶瓷产物由于通过玻璃基质保护的铅长石晶体而掺入耐酸攻击的抗性抗性。将CRT玻璃掺入玻璃陶瓷提供了一种有望的策略，可降低CRT玻璃的环境危害。

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  • 作者

    Xingwen Lu; Jiani Yang; Xun-an Ning; Kaimin Shih; Fei Wang;

  • 作者单位

    School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control Guangdong University of Technology;

    School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control Guangdong University of Technology;

    School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control Guangdong University of Technology;

    Department of Civil Engineering The University of Hong Kong;

    Department of Civil Engineering The University of Hong Kong;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 陶瓷工业;
  • 关键词

    Cathode ray tube; Funnel glass; Kaolin; Hazardous Pb; Quantitative XRD;

    机译：阴极射线管;漏斗玻璃;高岭土;危险的PB;定量XRD;

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