CaCu3Ti4O12 Ceramics Prepared by Coprecipitation Method
Source abstract
Abstract
为了降低CaCu 3 Ti 4 O 12 陶瓷的介电损耗, 保持高介电常数, 采用共沉淀法制备CaCu 3 Ti 4 O 12 陶瓷. 研究了前驱粉料的热分解过程、煅烧后粉料的物相结构、陶瓷的显微结构和介电性能, 并考察了Ca、Cu混合溶液pH值对CaCu 3 Ti 4 O 12 陶瓷性能的影响. 结果表明: 当Ca、Cu混合溶液pH值为5.1时, 制备的CaCu 3 Ti 4 O 12 陶瓷介电损耗最低, 而且能保持高介电常数. 在室温下, 频率为1kHz时, 介电常数为1.4×10 4 , 介电损耗为0.037. 通过对陶瓷性能对比, 发现共沉淀反应中各元素的沉淀比例, 陶瓷的微观结构和介电性能均受该pH值的影响. 因此, Ca、Cu混合溶液的pH值对降低CaCu 3 Ti 4 O 12 陶瓷介电损耗、保持高介电常数影响很大.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Dielectric properties of ceramics · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
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