中文摘要：

以熔盐法制备的片状Bi4Ti3O12作为种晶，通过流延工艺，采用反应模晶生长法（RTGG）制备了具有〈001〉择优取向的Bi0．5（Na0.8K0.2）0．5TiO3（BNKT）陶瓷。研究了流延工艺和烧结工艺参数对织构化程度的影响，XRD测试结果表明，这种方法得到的BNKT陶瓷具有f≥0．9的织构度，其压电性能也有了很大提高，与传统方法相比，d33增长了32％。

英文摘要：

The 〈001〉 fiber-textured Bi0.5 （Na0.8K0.2）0.5 TiO3 （BNKT） ceramics were fabricated by reactive templated grain growth （RTGG） method, using plate-like Bi4Ti3O14 （BIT） particles prepared by a molten salt method as the templates. Through the analysis of XRD and SEM, crystal structure and microstructure were investigated. The high textured BNKT ceramics with high lotgering factor（ ≥ 0.9） and good piezoelectric performance with high piezoelectric coefficient d33=165 Pc/N were obtained at 1200 ℃ for 10 h.