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| 激光烧结锆钛酸钡压电陶瓷 | |
| 引用本文： | 付宗义,季凌飞,蒋毅坚.激光烧结锆钛酸钡压电陶瓷[J].中国激光,2007,34(s1):125-127. |
| 作者姓名： | 付宗义 季凌飞 蒋毅坚 |
| 作者单位： | 付宗义:北京工业大学国家产学研激光技术中心， 北京 100022 季凌飞:北京工业大学国家产学研激光技术中心， 北京 100022 蒋毅坚:北京工业大学国家产学研激光技术中心， 北京 100022 |
| 基金项目： | 国家自然科学基金（10674041）、北京市自然科学基金(2052003)、北京市属市管高等学校人才强教计划、北京市科技新星计划(2006B11)和北京工业大学青年科研基金(2006)资助课题。 |
| 摘 要： | 报道了采用激光烧结技术制备锆钛酸钡(BZT)压电陶瓷的研究。用常规方法制备了锆钛酸钡粉料，采用CO2激光直接烧结锆钛酸钡坯材，最大激光功率150 W，扫描转速1440 rad/min，烧结时间10 min;对陶瓷样品介电频谱与谐振频谱的测量显示了锆钛酸钡的压电特征;比较了传统高温炉烧结与激光烧结陶瓷样品的高温介电谱线，激光烧结陶瓷样品居里温度有所提高;测得介电常数和压电常数分别为1563 pC/N和45pC/N;X射线衍射(XRD)谱图显示(111),(002)衍射峰相对强度增强;陶瓷样品表面的显微照片显示了晶粒生长的形貌。激光烧结可以作为功能陶瓷烧结的方法之一。 |
| 关 键 词： | 激光技术 压电陶瓷 激光烧结 锆钛酸钡 |
Laser Sintering of Ba(Ti0.95Zr0.05)O3Piezoelectric Ceramics |
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| Abstract: | The study on laser sintering of Ba(Ti0.95Zr0.05)O3 (BZT) piezoelectric ceramics was introduced. At first, the powder of BZT was prepared by traditional ways. The green patch was sintered by the CO2 laser which the largest powder was 150W and the rotate speed was 1440 rad/min and the time was 10 min. The piezoelectric ceramics character of BZT ceramic was showed through measuring the dielectric constant-temperature and impedance-frequency data. The ceramic sample by laser sintering had higher courier temperature through comparing the dielectric constant-temperature of two ways which are traditional ways and laser sintering. It was found that ε=1563, d33=45 pC/N. The data of XRD showed that the two peak values ［(111), (002)］ had been enlarged and it was observed that the crystal grain had grew in the ceramic. The measure of laser sintering could be regarded as one of the ways to sinter the functional ceramics. |
| Keywords: | laser technique piezoelectric ceramics laser sintering BZT |