| 聚合物前驱体法制备CTNA陶瓷及其性能 |
| |
| 引用本文： | 张国清,郑兴华,俞建长,汤德平,褚夫同. 聚合物前驱体法制备CTNA陶瓷及其性能[J]. 电子元件与材料, 2008, 27(2): 10-12 |
| |
| 作者姓名： | 张国清 郑兴华 俞建长 汤德平 褚夫同 |
| |
| 作者单位： | 福州大学,材料科学与工程学院,福建,福州,350108;福州大学,材料科学与工程学院,福建,福州,350108;福州大学,材料科学与工程学院,福建,福州,350108;福州大学,材料科学与工程学院,福建,福州,350108;福州大学,材料科学与工程学院,福建,福州,350108 |
| |
| 基金项目： | 福建省先进陶瓷技术重大专项资助项目 , 福州大学校科研和教改项目 , 福建省青年科技人才创新基金 |
| |
| 摘 要： | 采用DSC-TGA、XRD和SEM对聚合物前驱体法制备的0.7CaTiO_3-0.3NdAlO_3(CTNA)陶瓷粉末进行了分析。结果表明:经550℃预烧后的粉末为无定形态;但是当预烧温度提高到600℃时,形成了钙钛矿结构的CTNA单相。这表明CTNA晶相是未经中间相而直接从无定形态的前驱体中结晶形成。与传统固相反应法相比,合成温度从1300℃大幅下降到600℃。经900℃预烧,1375℃烧结的样品,其εr为43.3,Q·f为34862GHz,τf为1.4×10–6℃~(–1)。
|
| 关 键 词： | 无机非金属材料 微波介质陶瓷 聚合物前驱体法 CTNA陶瓷 钙钛矿结构 |
| 文章编号： | 1001-2028（2008）02-0010-03 |
| 收稿时间： | 2007-10-24 |
| 修稿时间： | 2007-10-24 |
Properties of CTNA ceramics prepared by polymeric precursor method |
| |
| ZHANG Guo-qing,ZHENG Xing-hua,YU Jian-chang,TANG De-ping,CHU Fu-tong. Properties of CTNA ceramics prepared by polymeric precursor method[J]. Electronic Components & Materials, 2008, 27(2): 10-12 |
| |
| Authors: | ZHANG Guo-qing ZHENG Xing-hua YU Jian-chang TANG De-ping CHU Fu-tong |
| |
| Affiliation: | ZHANG Guo-qing,ZHENG Xing-hua,YU Jian-chang,TANG De-ping,CHU Fu-tong (College of Materials Science , Engineering,Fuzhou University,Fuzhou 350108,China) |
| |
| Abstract: | 0.7CaTiO_3-0.3NdAlO_3 (CTNA) ceramic powder was synthesized by the polymeric precursor method, which was characterized by DSC-TGA, XRD and SEM. The results indicate that the powder is amorphous phase after calcining at 550 ℃ for 3 h. However, single CTNA phase with perovskite structure is found in the powder when the calcining temperature is raised to 600 ℃. This show that CTNA phase is crystallized directly from an amorphous, without any intermediate phase formation. Compared with the solid-state reaction method, the synthesis temperature is sharply decreased from 1 300 ℃ to 600 ℃. The samples calcined at 900℃ and sintered at 1 375℃,its εr,Q·f and τf are 43.3, 34 862 GHz and 1.4×10–6 ℃~(–1), respectively . |
| |
| Keywords: | non-metallic inorganic material microwave dielectric ceramics polymeric precursor method CTNA ceramics perovskite structure |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
