Influences of thermal treatment temperature on microstructures and properties of glass-ceramics from gold tailings

doi:10.1080/00150193.2021.1903264

	Influences of thermal treatment temperature on microstructures and properties of glass-ceramics from gold tailings
	Chen, Weiqian 1,2; Li, Yuhong 1; La, Peiqing 2; Xue, Yangquan 1; Li, Zengpeng 1,2; Xu, Shipeng 1,2; Sheng, Jie 2
刊名	FERROELECTRICS
	2021-07-27
卷号	579 期号:1 页码:23-32
关键词	Thermal treatment temperature gold tailings glass-ceramics melting method
ISSN号	0015-0193
DOI	10.1080/00150193.2021.1903264
英文摘要	Use CaO-Al2O3-SiO2 glass-ceramics from gold tailings in Hanyin as main raw materials, which were prepared by a melting method. In this paper, the effects of nucleation temperature and crystallization temperature on microstructures and properties of the glass-ceramic specimens were investigated. The thermal property of the glass-ceramics was discussed by differential scanning calorimetry (DSC), and microstructure was characterized by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Methods of a 4-point bending strength test, DIL-402C dilatometer and Archimedes method were used to determine the bending strength, thermal expanding coefficient and density of glass-ceramics. The experiment results indicated that the optimal properties of glass-ceramics were obtained by nucleation at 800 degrees C for 2 h, and then crystalling at 950 degrees C for 3 h. XRD analyses demonstrated that the main phase of gold tailings glass-ceramics was augite and diopside (CaMgSi2O6), and the minor phase was potassium iron silicate (KFeSi2O6). The bending strength, density and thermal expanding coefficient of the glass-ceramics were 128 MPa, 2.840 g/cm(3) and 7.85 x 10(-6)/degrees C, respectively.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000684976200002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148710]
专题	学科建设与学位办公室材料科学与工程学院
作者单位	1.Jiuquan Vocat & Tech Coll, Key Lab Solar Power Syst Engn, Jiuquan, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Chen, Weiqian,Li, Yuhong,La, Peiqing,et al. Influences of thermal treatment temperature on microstructures and properties of glass-ceramics from gold tailings[J]. FERROELECTRICS,2021,579(1):23-32.
APA	Chen, Weiqian.,Li, Yuhong.,La, Peiqing.,Xue, Yangquan.,Li, Zengpeng.,...&Sheng, Jie.(2021).Influences of thermal treatment temperature on microstructures and properties of glass-ceramics from gold tailings.FERROELECTRICS,579(1),23-32.
MLA	Chen, Weiqian,et al."Influences of thermal treatment temperature on microstructures and properties of glass-ceramics from gold tailings".FERROELECTRICS 579.1(2021):23-32.