激光烧结(Ta_2O_5)_(1-x)(TiO_2)_x陶瓷的拉曼光谱研究  

Raman Spectra of(Ta_2O_5)_(1-x)(TiO_2)_x Ceramics Prepared with Laser Sintering

作　　者：蒋毅坚[1] 季凌飞[1] 

机构地区：[1]北京工业大学国家产学研激光技术中心,北京100022

出　　处：《光散射学报》2006年第2期101-105,共5页The Journal of Light Scattering

基　　金：北京市自然科学基金(2052003);北京市属市管高等学校人才强教计划资助项目

摘　　要：简介了激光快速烧结陶瓷技术;测量了采用激光快速烧结技术和传统电炉烧结技术制备的(Ta2O5)1-x(TiO2)x陶瓷的相对介电常数和介电损耗;分析了这两类试样的激光拉曼光谱和粉末XRD谱;发现:(Ta2O5)1-x(TiO2)x陶瓷经激光快速烧结后产生了新相,从而导致相对介电常数大幅度提高。In this paper, the laser sintering technique was briefly introduced. The dielectric permittivity and dielectric loss were measured on （Ta2O5）1 - x（TiO2）x ceramics prepared with laser sintering and furnace sintering technique, respectively. Raman spectra and powder X - ray diffraction patterns for both samples were recorded and analyzed. It is discovered that new structure phase appear in laser sintered （Ta2O5）1 -x（TiO2）x ceramics, which results in the enhancement of dielectric permittivity.

关 键 词：(Ta2O5)1-x(TiO2)x陶瓷 激光烧结 拉曼光谱 介电常数 

分 类 号：O657.37[理学—分析化学]