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10-12: ICQMS seminar: 铌酸钾钠无铅陶瓷的掺杂和相界设计

创建日期 2018/10/10 永乐   浏览次数  43   返回    
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报告题目(TitleProgress on the Doping and Phase Boundary Design of Potassium Sodium Niobate Lead-free Ceramics  
铌酸钾钠无铅陶瓷的掺杂和相界设计
 
报 告 人(Speaker): Jianguo Zhu  
College of Materials Science and Engineering, Sichuan University,
Chengdu, 610064, China
四川大学材料学院 朱建国教授 
报告时间(Time20181012日(周五) 10:00 
报告地点(Place:上海大学量子与分子结构国际中心 E106 
报告摘要(Abstract
Progress on the Doping and Phase Boundary Design of Potassium Sodium Niobate Lead-free Ceramics  Jianguo Zhu   College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, China    Potassium sodium niobate (K,Na)NbO3/(KNN) lead-free ceramics  have drawn vast amount of attention as one of the effective alternatives to  lead-based ones. In recent years, the author’s group concentrated their  work on KNN-based ceramics. This talk reviews the main obtained results  in authors’ laboratory on how to enhance the piezoelectric properties of  KNN-based ceramics, including the ions or compounds substitution, the  constructing and types of phase boundaries near room temperature, the  investigation of other tools (sintering aids, synthesis technique, poling  conditions) on properties. All the published papers up to now show the  developing higher performance with maintaining high Curie temperature  of KNN-based ceramics has great potential for the future and is the key to  success for the field.    Keywords: Potassium sodium niobate; lead-free ceramic; doping;  phase boundary; piezoelectric properties 

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