Wang Shuming, Liang Kaiming
Laboratory for Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing, PR China.
Chemosphere. 2007 Nov;69(11):1798-801. doi: 10.1016/j.chemosphere.2007.06.016. Epub 2007 Jul 20.
A new glass-ceramic was synthesized by crystal growth from a homogenous glass obtained by melting a mixture of fly ash collected from a power plant in Hebei province of China, titanium slag collected from a titanium factory in Sichuan province of China, and MgCO(3) as an additive. According to the measurement results of differential thermal analysis, a thermal treatment of nucleating at 850 degrees C for 2h and crystallizing at 985 degrees C for 1.5h was used to obtain the crystallized glass. X-ray diffraction and scanning electron microscopy measurements showed that the main crystalline phase of this material was iron-ion substituted cordierite, (Mg,Fe)(2)Al(4)Si(5)O(18), which is homogeneously dispersed within the parent glass matrix. The infrared radiance and thermal expansion coefficient of this material have been examined, and the results demonstrate that this glass-ceramic material has potential for application in a wide range of infrared heating and drying materials.
通过将取自中国河北省某发电厂的粉煤灰、取自中国四川省某钛厂的钛渣以及作为添加剂的碳酸镁混合熔化得到均匀玻璃，再经晶体生长合成了一种新型微晶玻璃。根据差示热分析的测量结果，采用在850℃下成核2小时并在985℃下晶化1.5小时的热处理方法来获得微晶玻璃。X射线衍射和扫描电子显微镜测量表明，该材料的主要晶相是铁离子取代堇青石（Mg,Fe）₂Al₄Si₅O₁₈，其均匀分散在母玻璃基体中。对该材料的红外辐射率和热膨胀系数进行了检测，结果表明这种微晶玻璃材料在广泛的红外加热和干燥材料领域具有应用潜力。
