Sn-Ni化学镀硅酸钙镁矿物晶须的制备与表征  

PREPARATION AND CHARACTERIZATION OF SN-NI-COATED CALCIUM-MAGNESIUM SILICATE WHISKER

作　　者：管登高[1,2] 孙传敏[2] 林金辉[1] 陈善华[1] 龙剑平[1] 王自友[2] 卢长寿[2] 

机构地区：[1]成都理工大学材料与化学化工学院,四川成都610059 [2]成都理工大学地球科学学院,四川成都610059

出　　处：《矿物岩石》2010年第1期17-21,共5页Mineralogy and Petrology

基　　金：教育部博士点基金联合资助项目(20050616008);矿物学;岩石学;矿床学国家重点(培育)学科建设项目(SZD0407);四川省青年基金项目(09ZQ026-047)

摘　　要：以硅酸钙镁晶须为原料,采用化学镀方法制备一种镀Sn-Ni硅酸钙镁晶须,并用SEM,XRD,EDS和FT-IR对镀Sn-Ni硅酸钙镁晶须进行表征。结果表明:镀Sn-Ni硅酸钙镁晶须是一种针状结构的硅酸盐晶须材料,除有部分聚集增粗外,其形貌几乎没有变化;镀Sn-Ni硅酸钙镁晶须的主要化学组成为:w(O)48.24%,w(Si)10.78%,w(Mg)5.44%,w(Ca)2.26%,w(Sn)22.45%,w(Ni)2.19%,w(Na)4.38%,w(P)2.46%和w(S)1.80%;镀Sn-Ni硅酸钙镁晶须在1100cm-1～850cm-1强吸收区的振动频率的增加值与在750cm-1～600cm-1弱吸收区的振动频率的降低值均为4.98cm-1;镀Sn-Ni硅酸钙镁晶须的主体结构和化学键没有发生根本上改变,Sn-Ni化学镀在本质上是一种物理包覆过程。该研究为提高矿产资源的综合开发和利用水平提供了一种新的思路和方法。A new type of Sn-Ni-coated calcium-magnesium silicate whisker was prepared by using calcium-magnesium silicate whisker as the raw material. The material was characterized by scanning electron microscope （SEM）, energy distribute spectrum （EDS）, X-ray diffraction （XRD） and Fourier transform infrared spectroscopy （FT-IR）. The experiment results showed that the metalized treatment of Sn-Ni-coated calcium-magnesium silicate whisker was silicate mineral whisker with spinal crystal structure and did not lead to the change of whisker surface structure except the aggregation of the minority. The main chemical components of the Sn-Ni-coated whisker was characterized by w（O） 48.24%,w（Si）10.78%,w（Mg） 5.44%,w（Ca） 2.26%,w（Sn） 22. 45% ,w（Ni）2.19% ,w（Na） 4.38%,w（P） 2.46% andw（S） 1.80%. The vibration frequency of the Sn-Ni-coated whisker increased by 4. 98 cm^-1 in the infrared stronger absorption region from 1 100 cm^-1 to 850 cm^-1 ,which was equal to the reduction in the infrared weaker absorption region from 750 cm^-1 to 600 cm^-1. The main structure and chemical bond of the whisker did not fundamentally changed and chemical plating Sn-Ni was physical sedimentary and coating process in itself. This paper proposed a new method about mineral resources to enhance the intensive processing and the comprehensive utilization level.

关 键 词：晶须 硅酸钙镁 化学镀 导电材料 矿产资源 

分 类 号：O641[理学—物理化学]