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Lead-free pyroelectric composite ceramic material and preparation method thereof
The invention belongs to the field of pyroelectric energy collection, and particularly relates to a lead-free pyroelectric composite ceramic material with improved energy density and temperature stability and a preparation method thereof. SiO2 nanoparticles are introduced into a ceramic material 0.94Na[0.5]Bi[0.5]Ti[3]-0.06BaZr[x]Ti[1-x]O[3], wherein x is an atomic ratio, and x is more than or equal to 0 and less than or equal to 0.25; and the mass percentage of the SiO2 nanoparticles in the ceramic material 0.94Na[0.5]Bi[0.5]Ti[3]-0.06BaZr[x]Ti[1-x]O[3] is not greater than 0.2%. The SiO2 nanoparticles are introduced into the grain boundary position of the pyroelectric ceramic, so that a SiO2 three-dimensional network structure is formed, the heat transfer of the composite ceramic is accelerated, and the energy density and the temperature stability of the composite ceramic are improved.
本发明属于热释电能量收集领域，更具体地，涉及一种能量密度及温度稳定性提高的无铅热释电复合陶瓷材料及其制备方法。其为在陶瓷材料0.94NaBiTiO‑0.06BaZrTiO中引入SiO纳米颗粒后获得，其中x为原子比，0≤x≤0.25；且SiO纳米颗粒占陶瓷材料0.94NaBiTiO‑0.06BaZrTiO的质量百分数不大于0.2％。在热释电陶瓷晶界位置中引入SiO纳米颗粒，使其形成SiO三维网络结构，加快复合陶瓷的热传递，从而提升了复合陶瓷的能量密度及其温度稳定性。
Lead-free pyroelectric composite ceramic material and preparation method thereof
The invention belongs to the field of pyroelectric energy collection, and particularly relates to a lead-free pyroelectric composite ceramic material with improved energy density and temperature stability and a preparation method thereof. SiO2 nanoparticles are introduced into a ceramic material 0.94Na[0.5]Bi[0.5]Ti[3]-0.06BaZr[x]Ti[1-x]O[3], wherein x is an atomic ratio, and x is more than or equal to 0 and less than or equal to 0.25; and the mass percentage of the SiO2 nanoparticles in the ceramic material 0.94Na[0.5]Bi[0.5]Ti[3]-0.06BaZr[x]Ti[1-x]O[3] is not greater than 0.2%. The SiO2 nanoparticles are introduced into the grain boundary position of the pyroelectric ceramic, so that a SiO2 three-dimensional network structure is formed, the heat transfer of the composite ceramic is accelerated, and the energy density and the temperature stability of the composite ceramic are improved.
本发明属于热释电能量收集领域，更具体地，涉及一种能量密度及温度稳定性提高的无铅热释电复合陶瓷材料及其制备方法。其为在陶瓷材料0.94NaBiTiO‑0.06BaZrTiO中引入SiO纳米颗粒后获得，其中x为原子比，0≤x≤0.25；且SiO纳米颗粒占陶瓷材料0.94NaBiTiO‑0.06BaZrTiO的质量百分数不大于0.2％。在热释电陶瓷晶界位置中引入SiO纳米颗粒，使其形成SiO三维网络结构，加快复合陶瓷的热传递，从而提升了复合陶瓷的能量密度及其温度稳定性。
Lead-free pyroelectric composite ceramic material and preparation method thereof
一种无铅热释电复合陶瓷材料及其制备方法
JIANG SHENGLIN (Autor:in) / SHEN MENG (Autor:in) / ZHANG GUANGZU (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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