8题 电气石的性质及应用展望.pdfVIP

矿 业 快 报 Serial N o. 4 55 总第4 55 期 EX PRESS IN FORM AT ION M arch . 2007 OF M IN IN G IN DU ST RY 2007 年3 月第3 期 李芳芳 中国地质大学材料科学与化学工程学院) : 电气石族矿物化学成分高 多样化, 因其本身具有热电性, 压电性及自发极化性, 不仅 可以做为珍贵的宝石, 而且在科学技术环保等领域有着广泛的用途和应用前景文中主要对电气 石的颜色多样性机理, 性质, 粉体的制备及应用现状进行了综述, 并指出了存在问题和发展趋势 : 电气石; 性质; 制备; 应用 : T D878+ 1 : A : 2007) Property of Tourmaline and Appl ication Prospect L i Fangf ang School of Material Science and Chem ical Eng ineering , China U niversity of Geosciences) Abstract: Chemical composit ion of t he tourmaline group has diversif icat ion . T ourmaline has t he propert ies of pyroelect ricit y, piezoelect ricit y and spont aneous polariz at ion. T herefore, it may be used as gemstone and has m any uses and w ide applicat ion prospect in t he fields of science, technolog y and environment prot ection. T he color diversification mechanism, propert y, preparat ion of pow der and present sit uation of applicat ion of t he tourmaline are mainly review ed. T he problems and development trend of t he t ourmaline are point ed out . Keywords:T ourmaline; Propert y; P reparat ion; Applicat ion 1 , : , X Y3Z6 Si6 O 18 BO3) 3V 3W , [ 1] , , , X = N a+ , Ca2+ , K+ , ) ; Y = M g2+ , , 7 ~ 7 . 5, 3. 02~ 2+ 2+ 3+ 3+ 3+ 3+ + 4 3 F e , Mn , A l , F e , Mn , Cr , Li , T i + ; Z 3. 25/ cm , , = A l3+ , Mg2+ , Cr3+ , V 3+ ; V = O2- , OH- ; W = 1. 1 O2- , OH- , F- . Y Z ,