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| 溶胶-凝胶法制备Ca_(0.4)Sr_(0.6)Bi_4Ti_4O_(15)细晶陶瓷 | |
| 引用本文： | 冯博楷,武利顺,赵亮培,陈立胜,范素华,李红云.溶胶-凝胶法制备Ca_(0.4)Sr_(0.6)Bi_4Ti_4O_(15)细晶陶瓷[J].人工晶体学报,2010,39(3). |
| 作者姓名： | 冯博楷 武利顺 赵亮培 陈立胜 范素华 李红云 |
| 作者单位： | 1. 莱芜职业技术学院粉末冶金学院,莱芜,271100 2. 菏泽学院化学与化工系,菏泽,274031 3. 山东建筑大学材料科学与工程学院,济南,250101 |
| 摘 要： | 采用凝胶预碳化处理工艺制备了颗粒粒径较小,无硬团聚的Ca0.4Sr0.6Bi4Ti4O15纳米粉体,以Ca0.4Sr0.6Bi4Ti4O15非晶团簇粉体为陶瓷素坯的原料,同组分高浓度的Ca0.4Sr0.6Bi4Ti4O15溶胶为粘结剂,制备了Ca0.4Sr0.6Bi4Ti4O15细晶陶瓷,研究了Ca0.4Sr0.6Bi4Ti4O15粉体的相结构和微观形貌以及陶瓷的显微结构和铁电性能。实验结果表明:700℃焙烧粉体呈现为非晶团簇,800℃焙烧粉体形成了纯层状钙钛矿结构,粒径在100～150nm之间,无硬团聚;950℃烧结的Ca0.4Sr0.6Bi4Ti4O15细晶陶瓷结构致密,晶粒尺寸在0.2～0.5μm之间,其铁电性能优良,剩余极化Pr=12.5μC/cm2,矫顽场强Ec=50kV/cm。 |
| 关 键 词： | 钛酸锶铋钙 细晶陶瓷 凝胶预碳化处理 铁电性能 |
Preparation of Ca_(0.4)Sr_(0.6)Bi_4Ti_4O_(15) Fine-grained Ceramics by Sol-gel Method |
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| FENG Bo-kai,WU Li-shun,ZHAO Liang-pei,CHEN Li-sheng,FAN Su-hua,LI Hong-yun.Preparation of Ca_(0.4)Sr_(0.6)Bi_4Ti_4O_(15) Fine-grained Ceramics by Sol-gel Method[J].Journal of Synthetic Crystals,2010,39(3). | |
| Authors: | FENG Bo-kai WU Li-shun ZHAO Liang-pei CHEN Li-sheng FAN Su-hua LI Hong-yun |
| Institution: | FENG Bo-kai1,WU Li-shun2,ZHAO Liang-pei1,CHEN Li-sheng1,FAN Su-hua3,LI Hong-yun1(1.School of Powder Metallurgy,Laiwu Vocational , Technical College,Laiwu 271100,China,2.Department of Chemistry , Chemical Engineering,Heze University,Heze 274031,3.School of Material Science , Engineering,Sh,ong Jianzhu University,Jinan 250101,China) |
| Abstract: | Calcium strontium bismuth titanate(Ca0.4Sr0.6Bi4Ti4O15 ) nano-crystalline powders with smaller size and good dispersion were prepared by gel pre-carbonization assisting sol-gel route,and Ca0.4Sr0.6Bi4Ti4O15 fine-grained ceramics were fabricated with Ca0.4Sr0.6Bi4Ti4O15 amorphous clusters used as materials of ceramic green bulks and respective sols with high density used as binder.The phase structrue and morphologies of Ca0.4Sr0.6Bi4Ti4O15 powders were characterized,and the microstructures and ferroelectric ... |
| Keywords: | Ca0 4Sr0 6Bi4Ti4O15 fine-grained ceramics gel pre-carbonization ferroelectric properties |
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