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。

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.