title: High infrared radiance glass-ceramics obtained from fly ash and titanium slag.
abstract: 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.
authors.affiliation: Laboratory for Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing, PR China. wangshuming03@mails.thu.edu.cn
authors.forename: Shuming
authors.initials: S
authors.lastname: Wang
authors.forename: Kaiming
authors.initials: K
authors.lastname: Liang
mesh_terms: D002244:Carbon / Q000737:chemistry*; D002516:Ceramics / Q000737:chemistry*; D002681:China; D060729:Coal Ash; D003460:Crystallization; D005898:Glass / Q000737:chemistry*; D006358:Hot Temperature; D007220:Industrial Waste / Q000517:prevention & control*; D007259:Infrared Rays; D008274:Magnesium / Q000737:chemistry; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D052638:Particulate Matter / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D060729:Coal Ash; D007220:Industrial Waste; D052638:Particulate Matter; C005479:magnesium carbonate; C009495:titanium dioxide; D002244:Carbon; D014025:Titanium; D008274:Magnesium