基本信息:
- 专利标题： 一种无铅压电陶瓷的加工方法
- 专利标题（英）：Processing method of leadless piezoelectric ceramic
- 申请号：CN201710848630.8 申请日：2017-09-20
- 公开(公告)号：CN107473733A 公开(公告)日：2017-12-15
- 发明人： 张芝烈
- 申请人： 贵州丛源电子科技有限公司
- 申请人地址： 贵州省黔东南苗族侗族自治州岑巩县经济开发区轻工产业园
- 专利权人： 贵州丛源电子科技有限公司
- 当前专利权人： 贵州丛源电子科技有限公司
- 当前专利权人地址： 贵州省黔东南苗族侗族自治州岑巩县经济开发区轻工产业园
- 主分类号： C04B35/475
- IPC分类号： C04B35/475 ; C04B35/622 ; C04B41/88 ; H01L41/43
The invention belongs to the technical field of ceramic materials and particularly relates to a processing method of leadless piezoelectric ceramic. The processing method comprises the following steps: weighing the raw materials of BI2O3, K2CO3, Na2CO3, TiO2, Li2CO3 and Ba2CO3 according to the chemical ratio of 0.94(Bi0.5Na0.44-xK0.06Lix)TiO3-0.06BaTiO3, uniformly mixing, sequentially carrying out primary grinding, secondary grinding, briquetting, presintering, third grinding, fourth grinding, granulation, formation, plastic removal, sintering, shape processing, silver plating, polarization and marking on the raw materials, so as to obtain the leadless piezoelectric ceramic, wherein x is equal to 0.007-0.081. By carrying out four grinding processes and controlling the particle sizes of the materials in the processing process, the dielectric and piezoelectric coefficients, beating resistance frequency, d33 value and epsilon value of the processed leadless piezoelectric ceramic are remarkably increased.