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中文摘要：
基于对人类生存环境的保护和发展环境友好型材料与电子产品的要求,铌酸钾钠（K0．5 Na0．5 NbO 3,简写为 KNN）基无铅压电陶瓷由于其具有优越的电学性能和较高的居里温度而成为目前世界范围内压电铁电材料研究的热点之一.材料制备工艺技术在材料科学技术中占有极其重要的地位.结合国际无铅压电陶瓷的研究情况,综述了近年来铌酸钾钠基无铅压电陶瓷在粉体制备、陶瓷烧结以及陶瓷织构化等制备工艺技术上研究的新进展并展望了其发展趋势.
英文摘要：
Based on the requirements of protecting the environment for human beings and the development of en-vironmentally friendly materials and devices,sodium potassium niobate (K0.5 Na0.5 NbO 3 or KNN)lead-free pie-zoelectric ceramics has become one of the research hot topics worldwide at present for new piezo- and ferroelec-tric materials because of their excellent electrical properties and higher Curie temperatures.Materials fabrication technology plays an extremely important pole in material science and technology.In this paper,the authors re-view the recent research progress and development of the fabrication techniques of potassium sodium niobate based lead-free piezoelectric ceramics worldwide especially in powder preparation,ceramics sintering and ceram-ic texture,and their future perspectives are also given out.
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