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Novel photochromic piezoelectric ceramic and preparation method thereof
The preparation method comprises the following steps: S1, weighing: respectively weighing precursor raw materials of potassium salt, sodium salt, lithium salt, niobium salt, antimony salt and tantalum salt and copper oxide according to a stoichiometric formula [(K < 0.43 > Na < 0.57 >) < 0.94 > Li < 0.06 >] [(Nb < 0.94 > Sb < 0.06 >) < 0.95 > Ta < 0.05 >] O < 3 + x mol% CuO for later use; s2, primary ball milling: mixing the precursor raw materials, and then carrying out ball milling; s3, pre-sintering: pre-sintering the slurry subjected to ball milling; s4, secondary ball milling: carrying out ball milling on the pre-sintered raw materials again, and drying to obtain pre-sintered ceramic powder; s5, molding: adding a binder into the pre-sintered ceramic powder, and then carrying out compression molding to obtain a ceramic blank; s6, glue discharging and sintering: heating the ceramic green body, and then carrying out heat preservation treatment to obtain a glue-discharged green body; and then, sintering the green body subjected to glue removal, so as to obtain the photochromic piezoelectric ceramic. The prepared ceramic material does not contain rare earth elements, is low in cost, and has excellent visible light photochromic property, fluorescence luminescence property and piezoelectric response property.
本发明公开了一种新型光致变色压电陶瓷及其制备方法，包括如下步骤：S1、称量：按化学计量式[(K0.43Na0.57)0.94Li0.06][(Nb0.94Sb0.06)0.95Ta0.05]O3+x mol％CuO分别称取钾盐、钠盐、锂盐、铌盐、锑盐、钽盐的前驱体原料及氧化铜，备用；S2、一次球磨：将各前驱体原料混合后进行球磨；S3、预烧：将球磨后的浆料进行预烧；S4、二次球磨：将预烧后的原料再次进行球磨，烘干后得预烧陶瓷粉体；S5、成型：向预烧陶瓷粉体中加入粘结剂，随后进行压制成型，得陶瓷胚体；S6、排胶与烧结：对陶瓷胚体加热后进行保温处理，得排胶生胚；随后对所述排胶生胚进行烧结，即得光致变色压电陶瓷。本发明所制得的陶瓷材料中不含稀土元素，成本低，且同时具有优异的可见光光致变色性能、荧光发光特性和压电响应性能。
Novel photochromic piezoelectric ceramic and preparation method thereof
The preparation method comprises the following steps: S1, weighing: respectively weighing precursor raw materials of potassium salt, sodium salt, lithium salt, niobium salt, antimony salt and tantalum salt and copper oxide according to a stoichiometric formula [(K < 0.43 > Na < 0.57 >) < 0.94 > Li < 0.06 >] [(Nb < 0.94 > Sb < 0.06 >) < 0.95 > Ta < 0.05 >] O < 3 + x mol% CuO for later use; s2, primary ball milling: mixing the precursor raw materials, and then carrying out ball milling; s3, pre-sintering: pre-sintering the slurry subjected to ball milling; s4, secondary ball milling: carrying out ball milling on the pre-sintered raw materials again, and drying to obtain pre-sintered ceramic powder; s5, molding: adding a binder into the pre-sintered ceramic powder, and then carrying out compression molding to obtain a ceramic blank; s6, glue discharging and sintering: heating the ceramic green body, and then carrying out heat preservation treatment to obtain a glue-discharged green body; and then, sintering the green body subjected to glue removal, so as to obtain the photochromic piezoelectric ceramic. The prepared ceramic material does not contain rare earth elements, is low in cost, and has excellent visible light photochromic property, fluorescence luminescence property and piezoelectric response property.
本发明公开了一种新型光致变色压电陶瓷及其制备方法，包括如下步骤：S1、称量：按化学计量式[(K0.43Na0.57)0.94Li0.06][(Nb0.94Sb0.06)0.95Ta0.05]O3+x mol％CuO分别称取钾盐、钠盐、锂盐、铌盐、锑盐、钽盐的前驱体原料及氧化铜，备用；S2、一次球磨：将各前驱体原料混合后进行球磨；S3、预烧：将球磨后的浆料进行预烧；S4、二次球磨：将预烧后的原料再次进行球磨，烘干后得预烧陶瓷粉体；S5、成型：向预烧陶瓷粉体中加入粘结剂，随后进行压制成型，得陶瓷胚体；S6、排胶与烧结：对陶瓷胚体加热后进行保温处理，得排胶生胚；随后对所述排胶生胚进行烧结，即得光致变色压电陶瓷。本发明所制得的陶瓷材料中不含稀土元素，成本低，且同时具有优异的可见光光致变色性能、荧光发光特性和压电响应性能。
Novel photochromic piezoelectric ceramic and preparation method thereof
一种新型光致变色压电陶瓷及其制备方法
GUO JINMING (Autor:in) / YANG BIN (Autor:in) / ZHANG HAO (Autor:in)
13.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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