Grain growth, densification and electrical properties of lead-free piezoelectric ceramics from nanocrystalline (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 powder by sol-gel technique

doi:10.1007/s10854-014-1862-x

	Grain growth, densification and electrical properties of lead-free piezoelectric ceramics from nanocrystalline (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 powder by sol-gel technique
	Yan, Xiaobin 1,2; Gao, Feng 2; Peng, Biaolin 3; Liu, Zhengtang 2
刊名	JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
	2014-05
卷号	25 期号:5 页码:2220-2226
ISSN号	0957-4522
DOI	10.1007/s10854-014-1862-x
英文摘要	The sintering behavior revealed in the sintering processes of the conventional and a two-step process and electrical properties of the (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 ceramics from the nanocrystalline powders synthesized by a sol-gel technique were systematically studied. It was found that the sintering process of the (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 ceramics made from nanocrystalline powders was significantly improved, the sintering temperature was reduced markedly from 1,540 to 1,280 A degrees C, as well as a high relative density (> 97 %) was obtained in the conventional sintering. Under the two-step sintering conditions, the full densification and the most suppression of grain growth was achieved simultaneously. The (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 ceramics from nanocrystalline powders sintered by the two-step sintering technique (sintered at T (1) of 1,300 A degrees C for 1 min and T (2) of 1,150 A degrees C for 20 h) exhibited the optimum average grain size of 700 nm and a high relative density of 98 %. The electrical properties of the (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 ceramics were greatly influenced by the grain size and phase structure formed under the both sintering conditions, with sintering temperature and grain size increased, the electrical properties of the (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 ceramics, which made from nanocrystalline powders, shows an enhancing trend: d (33) similar to 100 pC/N, k (p) similar to 53.3 % for the specimen sintered at 1,300 A degrees C for 1 min and 1,150 A degrees C for 20 h, d (33) similar to 310 pC/N, k (p) similar to 53.3 % for the specimen sintered at 1,350 A degrees C for 2 h respectively.
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000334411100029
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34403]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China; 3.Hong Kong Polytech Univ, Dept Appl Phys, Jiulong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Yan, Xiaobin,Gao, Feng,Peng, Biaolin,et al. Grain growth, densification and electrical properties of lead-free piezoelectric ceramics from nanocrystalline (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 powder by sol-gel technique[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2014,25(5):2220-2226.
APA	Yan, Xiaobin,Gao, Feng,Peng, Biaolin,&Liu, Zhengtang.(2014).Grain growth, densification and electrical properties of lead-free piezoelectric ceramics from nanocrystalline (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 powder by sol-gel technique.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,25(5),2220-2226.
MLA	Yan, Xiaobin,et al."Grain growth, densification and electrical properties of lead-free piezoelectric ceramics from nanocrystalline (Ba0.85Ca0.15)(Ti0.90Zr0.10)O-3 powder by sol-gel technique".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 25.5(2014):2220-2226.