利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN107573067A 锆钛酸铅基压电陶瓷片的低温烧结方法 无效 - 驳回

锆钛酸铅基压电陶瓷片的低温烧结方法
摘要：
本发明提供一种锆钛酸铅基压电陶瓷片的低温烧结方法，包括下述步骤：将PbO原料粉体、ZrO2原料粉体、TiO2原料粉体及Sm2O3原料粉体按Pb1-xSmx(Zr0.52Ti0.48)1-x/4O3化学通式进行配料，获得混合粉体；球磨，烘干，并预烧得到预烧结粉体；用淬火法制备玻璃助烧剂LBBS，将预烧结粉体与玻璃助烧剂混合、球磨、烘干、造粒，并压片得到压电陶瓷生坯；将压电陶瓷生坯进行排胶和烧结，得到压电陶瓷片，本发明将压电陶瓷片的烧结温度从1000℃以上降低至850℃，很大程度上减少了铅(熔点为980℃)的挥发，减轻了对人体的损害及环境的污染，提高了陶瓷烧结的致密化，相对密度达到95％。
摘要（英）：

The invention provides a low-temperature sintering method of a lead zirconate titanate-based piezoelectric ceramic piece. The low-temperature sintering method comprises the following steps: preparingPbO raw material powder, ZrO2 raw material powder, TiO2 raw material powder and Sm2O3 raw material powder according to a chemical formula Pb(1-x)Smx(Zr0.52Ti0.48)(1-x)/4O3 to obtain mixed powder; ball-milling, drying and pre-sintering to obtain pre-sintered powder; preparing a glass sintering aid LBBS according to a quenching method; mixing the pre-sintered powder and the glass sintering aid, andcarrying out ball-milling, drying, granulating and tableting to obtain a piezoelectric ceramic green compact; rubber-discharging and sintering the piezoelectric ceramic green compact to obtain the piezoelectric ceramic piece. The low-temperature sintering method provided by the invention lowers the sintering temperature of the piezoelectric ceramic piece from above 1000 DEG C to below 850 DEG C, greatly reduces volatilization of lead (with a melting point of 980 DEG C), reduces damage to human body and environmental pollution, improves ceramic sintering densification, and enables the relativedensity reach 95%.

0/0