摘要
采用固相反应法制备了掺杂不同量氧化镁(MgO)的钛酸锶钡(BST)微波铁电材料。采用SEM、EPMA、XRD等测试手段,分析研究了烧结产物的微观形貌特征、相组成、微区成分等特点,结果表明:MgO总是以单独相存在,Mg2+没有取代Ba2+(Sr2+)或Ti4+离子而进入BST晶格。
Barium strontium titanate （BST） microwave ferroelectric materials doped with different amounts of magnesia （MgO） were prepared by traditional process-solid phase synthesis. The microscopic structure characteristic, phase distribution, and micro-area ingredient of the composites were investigated by means of SEM, EPMA, XRD. The measurement results showed that MgO always presented in the composites as a separate phase and Mg^2＋ does not appear in the BST crystal domain by substituting the Ba^2＋ , Sr^2＋ or Ti^4＋ .
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2007年第4期17-21,共5页
Journal of Wuhan University of Technology
关键词
微观结构
钛酸锶钡
氧化镁
微波铁电材料
microstructure
barium strontium titanate
magnesia
microwave ferrodectric material
