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Hafnium lead titanate-based anti-ferroelectric ceramic material and preparation method thereof
A hafnium lead titanate-based anti-ferroelectric ceramic material is characterized in that lead (Pb) in hafnium lead titanate is partially replaced by metal element lanthanum A (La), hafnium (Hf) is partially replaced by tin (Sn), then lead is partially replaced by element B, the chemical formula of the material is [(Pb[1-w]B[w])[1-3z/2]La[z]][(Hf[1-y]Sn[y])[1-x]Ti[x]]O[3], wherein B is at least one of barium (Ba) and strontium (Sr). The prepared hafnium lead titanate-based anti-ferroelectric ceramic block material has the advantages of compact microstructure, few defects, uniform component distribution, no component segregation, excellent energy storage density (up to 5 J/cm<3>), discharge pulse power (up to 1 MW/cm<3>), high breakdown electric field (up to 250-300 kV/cm), small dielectric loss and stable material performance.
一种铪钛酸铅基反铁电陶瓷材料，其特征在于：采用金属元素镧A（La）部分取代铪钛酸铅中的铅（Pb），以锡（Sn）部分取代铪（Hf），元素B再部分取代铅，其化学式为[(Pb1‑wBw)1‑3z/2Laz][(Hf1‑ySny)1‑xTix]O3，其中B为钡（Ba）和锶（Sr）中至少一种。本发明中制备的铪钛酸铅基反铁电陶瓷块状材料，微观组织结构致密、缺陷少，各成分分布均匀、没有成分偏聚，具有优异的储能密度，储能密度达到5J/cm3，放电脉冲功率达到1MW/cm3，高的击穿电场、击穿电场达到250~300kV/cm，介电损耗小，材料性能稳定。
Hafnium lead titanate-based anti-ferroelectric ceramic material and preparation method thereof
A hafnium lead titanate-based anti-ferroelectric ceramic material is characterized in that lead (Pb) in hafnium lead titanate is partially replaced by metal element lanthanum A (La), hafnium (Hf) is partially replaced by tin (Sn), then lead is partially replaced by element B, the chemical formula of the material is [(Pb[1-w]B[w])[1-3z/2]La[z]][(Hf[1-y]Sn[y])[1-x]Ti[x]]O[3], wherein B is at least one of barium (Ba) and strontium (Sr). The prepared hafnium lead titanate-based anti-ferroelectric ceramic block material has the advantages of compact microstructure, few defects, uniform component distribution, no component segregation, excellent energy storage density (up to 5 J/cm<3>), discharge pulse power (up to 1 MW/cm<3>), high breakdown electric field (up to 250-300 kV/cm), small dielectric loss and stable material performance.
一种铪钛酸铅基反铁电陶瓷材料，其特征在于：采用金属元素镧A（La）部分取代铪钛酸铅中的铅（Pb），以锡（Sn）部分取代铪（Hf），元素B再部分取代铅，其化学式为[(Pb1‑wBw)1‑3z/2Laz][(Hf1‑ySny)1‑xTix]O3，其中B为钡（Ba）和锶（Sr）中至少一种。本发明中制备的铪钛酸铅基反铁电陶瓷块状材料，微观组织结构致密、缺陷少，各成分分布均匀、没有成分偏聚，具有优异的储能密度，储能密度达到5J/cm3，放电脉冲功率达到1MW/cm3，高的击穿电场、击穿电场达到250~300kV/cm，介电损耗小，材料性能稳定。
Hafnium lead titanate-based anti-ferroelectric ceramic material and preparation method thereof
一种铪钛酸铅基反铁电陶瓷材料及其制备方法
TANG HUA (Autor:in) / MENG XIANG (Autor:in) / CHENG JIANG (Autor:in) / LI LU (Autor:in)
06.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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