{"title":"添加CeO2的(Na0.475K0.475Li0.05)(Nb0.92Ta0.05Sb0.03)O3无铅陶瓷","authors":"T. Lee, K. Kwok, H. Chan","doi":"10.1109/ISAF.2007.4393364","DOIUrl":null,"url":null,"abstract":"Lead-free piezoelectric ceramics (Na<sub>0.475</sub>K<sub>0.475</sub>Li<sub>0.05</sub>)(Nb<sub>0.92</sub>Ta<sub>0.05</sub>Sb<sub>0.03</sub>)O<sub>3</sub> added with different amounts of CeO<sub>2</sub> have been prepared by a conventional mixed-oxide method. After the addition of CeO<sub>2</sub>, the sintering performance of the ceramics is greatly improved. The ceramics can be well-sintered at a higher temperature, and hence have a higher density and better piezoelectric and dielectric properties. For the ceramic added with 0.4 wt% CeO<sub>2</sub>, the piezoelectric and dielectric properties become optimum, giving d<sub>33</sub>=246 pC/N, k<sub>p</sub>=0.50, epsiv<sub>r</sub>=1300 and tandelta=4%.","PeriodicalId":321007,"journal":{"name":"2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"(Na0.475K0.475Li0.05)(Nb0.92Ta0.05Sb0.03)O3 lead-free ceramics with addition of CeO2\",\"authors\":\"T. Lee, K. Kwok, H. Chan\",\"doi\":\"10.1109/ISAF.2007.4393364\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Lead-free piezoelectric ceramics (Na<sub>0.475</sub>K<sub>0.475</sub>Li<sub>0.05</sub>)(Nb<sub>0.92</sub>Ta<sub>0.05</sub>Sb<sub>0.03</sub>)O<sub>3</sub> added with different amounts of CeO<sub>2</sub> have been prepared by a conventional mixed-oxide method. After the addition of CeO<sub>2</sub>, the sintering performance of the ceramics is greatly improved. The ceramics can be well-sintered at a higher temperature, and hence have a higher density and better piezoelectric and dielectric properties. For the ceramic added with 0.4 wt% CeO<sub>2</sub>, the piezoelectric and dielectric properties become optimum, giving d<sub>33</sub>=246 pC/N, k<sub>p</sub>=0.50, epsiv<sub>r</sub>=1300 and tandelta=4%.\",\"PeriodicalId\":321007,\"journal\":{\"name\":\"2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics\",\"volume\":\"55 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-05-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISAF.2007.4393364\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISAF.2007.4393364","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
(Na0.475K0.475Li0.05)(Nb0.92Ta0.05Sb0.03)O3 lead-free ceramics with addition of CeO2
Lead-free piezoelectric ceramics (Na0.475K0.475Li0.05)(Nb0.92Ta0.05Sb0.03)O3 added with different amounts of CeO2 have been prepared by a conventional mixed-oxide method. After the addition of CeO2, the sintering performance of the ceramics is greatly improved. The ceramics can be well-sintered at a higher temperature, and hence have a higher density and better piezoelectric and dielectric properties. For the ceramic added with 0.4 wt% CeO2, the piezoelectric and dielectric properties become optimum, giving d33=246 pC/N, kp=0.50, epsivr=1300 and tandelta=4%.
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