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Multilayer high-temperature piezoelectric ceramic slurry and preparation method thereof
The invention discloses a multilayer high-temperature piezoelectric ceramic slurry and a preparation method thereof, the multilayer high-temperature piezoelectric ceramic slurry comprises the following components in parts by weight: 40-50 parts of high-temperature ceramic powder, 10-20 parts of a solvent, 10-20 parts of a dispersant, 10-20 parts of a binder and 10-20 parts of a thickener; 35 to 45 parts of a solvent; 2-8 parts of a dispersant; 6 to 10 parts of a binder; the chemical formula of the high-temperature ceramic powder is (Na < 0.5 > Bi < 0.45 > M < 0.05 >) Bi < 2 > Nb < 1.98 > N < 0.02 > O < 9 > + x wt.% V < 2 > O < 5 > + y wt.% Bi < 2 > O < 3 >, M is any one of Ce, Y, La or Pr, and N is any one or more of Zn, Ni, W, Zr or Sc. The film tape prepared through tape casting has the characteristics of good uniformity, excellent toughness and strength and the like, and the multilayer high-temperature piezoelectric ceramic obtained after the film tape is subjected to the working procedures of external electrode printing, lamination, lamination, cutting, grease discharging, sintering, external electrode plating, polarization and the like has good piezoelectric performance and is stable in piezoelectric performance after being subjected to long-time heat preservation at the high temperature of 482 DEG C; and the use requirements in a high-temperature environment are met.
本发明公开了一种多层高温压电陶瓷浆料及其制备方法，多层高温压电陶瓷浆料由高温陶瓷粉体、溶剂、分散剂、粘结剂和增稠剂组成，其重量份数的组分为：高温陶瓷粉体40‑50份；溶剂35‑45份；分散剂2‑8份；粘结剂6‑10份；增稠剂6‑10份，所述高温陶瓷粉体的化学式为（Na0.5Bi0.45M0.05）Bi2Nb1.98N0.02O9+xwt.%V2O5+ywt.%Bi2O3，其中M为Ce、Y、La或Pr中的任意一种，且N为Zn、Ni、W、Zr或Sc中的任意一种或多种。本发明通过流延成型制备的膜带具有均匀性好、韧性和强度优良等特点，且膜带通过印刷外电极、叠层、层压、切割、排脂、烧结、镀外电极、极化等工序后得到的多层高温压电陶瓷具有压电性能好、在高温482℃长时间保温后压电性能稳定，满足高温环境的使用要求。
Multilayer high-temperature piezoelectric ceramic slurry and preparation method thereof
The invention discloses a multilayer high-temperature piezoelectric ceramic slurry and a preparation method thereof, the multilayer high-temperature piezoelectric ceramic slurry comprises the following components in parts by weight: 40-50 parts of high-temperature ceramic powder, 10-20 parts of a solvent, 10-20 parts of a dispersant, 10-20 parts of a binder and 10-20 parts of a thickener; 35 to 45 parts of a solvent; 2-8 parts of a dispersant; 6 to 10 parts of a binder; the chemical formula of the high-temperature ceramic powder is (Na < 0.5 > Bi < 0.45 > M < 0.05 >) Bi < 2 > Nb < 1.98 > N < 0.02 > O < 9 > + x wt.% V < 2 > O < 5 > + y wt.% Bi < 2 > O < 3 >, M is any one of Ce, Y, La or Pr, and N is any one or more of Zn, Ni, W, Zr or Sc. The film tape prepared through tape casting has the characteristics of good uniformity, excellent toughness and strength and the like, and the multilayer high-temperature piezoelectric ceramic obtained after the film tape is subjected to the working procedures of external electrode printing, lamination, lamination, cutting, grease discharging, sintering, external electrode plating, polarization and the like has good piezoelectric performance and is stable in piezoelectric performance after being subjected to long-time heat preservation at the high temperature of 482 DEG C; and the use requirements in a high-temperature environment are met.
本发明公开了一种多层高温压电陶瓷浆料及其制备方法，多层高温压电陶瓷浆料由高温陶瓷粉体、溶剂、分散剂、粘结剂和增稠剂组成，其重量份数的组分为：高温陶瓷粉体40‑50份；溶剂35‑45份；分散剂2‑8份；粘结剂6‑10份；增稠剂6‑10份，所述高温陶瓷粉体的化学式为（Na0.5Bi0.45M0.05）Bi2Nb1.98N0.02O9+xwt.%V2O5+ywt.%Bi2O3，其中M为Ce、Y、La或Pr中的任意一种，且N为Zn、Ni、W、Zr或Sc中的任意一种或多种。本发明通过流延成型制备的膜带具有均匀性好、韧性和强度优良等特点，且膜带通过印刷外电极、叠层、层压、切割、排脂、烧结、镀外电极、极化等工序后得到的多层高温压电陶瓷具有压电性能好、在高温482℃长时间保温后压电性能稳定，满足高温环境的使用要求。
Multilayer high-temperature piezoelectric ceramic slurry and preparation method thereof
一种多层高温压电陶瓷浆料及其制备方法
YAO FANGZHOU (Autor:in) / LI JIAJIU (Autor:in) / YANG WANRONG (Autor:in)
15.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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