| ZnO和CuO烧结助剂对KNN压电陶瓷性能的影响 |
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| 引用本文： | 李月明,刘虎,沈宗洋,洪燕,王竹梅,李润润.ZnO和CuO烧结助剂对KNN压电陶瓷性能的影响[J].中国陶瓷,2011(10). |
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| 作者姓名： | 李月明 刘虎 沈宗洋 洪燕 王竹梅 李润润 |
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| 作者单位： | 景德镇陶瓷学院材料科学与工程学院江西省先进陶瓷材料重点实验室; |
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| 基金项目： | 国家自然科学基金(50962007); 江西省主要学科学术和技术带头人培养计划项目(2010DD0110); 江西省自然科学基金(2009GZ0063); 江西省教育厅青年科技基金(GJJ095333)资助项目 |
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| 摘 要： | 以微波水热法制备的KNN粉体为原料,添加1mol%ZnO、1mol%CuO烧结助剂,采用传统电子陶瓷制备方法,研究了烧结助剂对KNN陶瓷的陶瓷体积密度、显微结构和电性能的影响,结果表明:添加烧结助剂ZnO和CuO可以降低KNN陶瓷的烧结温度,提高KNN陶瓷的体积密度;与此同时,ZnO和CuO添加后降低了KNN无铅压电陶瓷的压电常数d33、介电常数ε33T/ε0,但机械品质因数Qm得到很大的提高,介电损耗tanδ明显降低。其中CuO烧结助剂可以使KNN陶瓷的d33由142 pC/N降低至118 pC/N,Qm值由82提高至427,tanδ由2.46%降低至0.64%。
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| 关 键 词： | 铌酸钾钠 无铅压电陶瓷 烧结助剂 ZnO CuO |
EFFECT OF ZnO AND CuO SINTERING ADDITIVES ON THE PROPERTIES OF KNN PIEZOELECTRIC CERAMIC |
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| Li Yueming,Liu Hu,Shen Zongyang,Hong Yan,Wang Zhumei,Li Runrun.EFFECT OF ZnO AND CuO SINTERING ADDITIVES ON THE PROPERTIES OF KNN PIEZOELECTRIC CERAMIC[J].China Ceramics,2011(10). |
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| Authors: | Li Yueming Liu Hu Shen Zongyang Hong Yan Wang Zhumei Li Runrun |
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| Affiliation: | Li Yueming,Liu Hu,Shen Zongyang,Hong Yan,Wang Zhumei,Li Runrun(School of Materials Science and Engineering,Jingdezhen Ceramic Institute,Jiangxi Key Laboratory of Advanced Ceramic Materials,Jingdezhen 333403) |
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| Abstract: | Using KNN powder prepared by microwave-hydrothermal method as raw material,traditional ceramic method was employed to prepare the KNN based lead-free piezoelectric ceramic with 1mol% ZnO or 1mol% CuO sintering additives.The effect of sintering additives on the bulk density,microstructure and electric properties of the ceramic was investigated.The results indicate that ZnO and CuO additives can lower the sintering temperature and enhance the bulk density of KNN ceramic.Furthermore,when ZnO and CuO additives ... |
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| Keywords: | (Na0 5K0 5)NbO3 Lead-free Piezoelectric Ceramic Sintering Additive ZnO CuO |
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