热处理对黑电气石结构的影响  

Effect on Structure of Schorl with Heat Treatment

作　　者：张俊朋[1] 何登良[1] 向洁[1] 吴蔚[1] 宋世洋[1] 

机构地区：[1]绵阳师范学院化学与化学工程学院,四川绵阳621000

出　　处：《绵阳师范学院学报》2013年第11期55-57,共3页Journal of Mianyang Teachers＇ College

基　　金：国家自然科学基金(51004066);绵阳师范学院学科建设项目(2011C03);四川教育厅科研项目(13ZB0118)

摘　　要：该文以广西所产黑色电气石为研究对象,以400℃、500℃、600℃、700℃、800℃、900℃为热处理温度进行焙烧处理,采用X射线衍射法、红外吸收光谱测试了热处理前后电气石的结构变化.实验结果表明:当处理温度在400℃、500℃、600℃时,电气石的物相仍为黑电气石,说明该电气石在600℃下能够稳定存在;当处理温度升高到700℃,电气石的物相转变为布格电气石,同时晶胞体积缩小,可能是由于高温条件下电气石的晶胞产生了收缩;当热处理温度升高到900℃时,电气石结构被破坏,主要物相转变为Fe2O3.In this paper, Schorl from Guangxi were treated with heat at 400 ℃ ,500 ℃ ,600 ℃ ,700 ℃ ℃ ,900 ℃, and the X - ray diffraction, infrared absorption spectra were used to measure structural changes being treated. The experimental results show that： when the treatment temperature at 400 ℃, 500 ℃, 600 the phase of sample remains Schorl tourmaline, indicating that the tourmaline can be stable existing at 600 When the processing temperature was increased to 700 ℃, the phase of sample was changed into Buergerite, ,800 after ℃, ℃; and cell volume of tourmaline is reduced. When the heat treatment temperature at 900 ℃, tourmaline structure is de- stroyed, the main phase of sample was changed into Fe2 03

关 键 词：电气石 热处理 结构 

分 类 号：TQ174.76[化学工程—陶瓷工业] TB321[化学工程—硅酸盐工业]