Effect of donor concentration on the PTCR behavior of Y-doped BaTiO3–(Bi1/2Na1/2)TiO3 ceramics

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 无机功能材料与器件重点实验室 > 期刊论文

	Effect of donor concentration on the PTCR behavior of Y-doped BaTiO3–(Bi1/2Na1/2)TiO3 ceramics
	Leng SL(冷森林) ; Li GR(李国荣) ; Zheng LY(郑嘹赢) ; WeiShi99 ; YaZhu99
刊名	Journal of Materials Science: Materials in Electronics
	2013
卷号	24 期号:1 页码:431
ISSN号	0957-4522
其他题名	Effect of donor concentration on the PTCR behavior of Y-doped BaTiO3–(Bi1/2Na1/2)TiO3 ceramics
通讯作者	冷森林
中文摘要	Lead-free positive temperature coefficient of resistivity (PTCR) ceramics of 99 mol%BaTiO3–1 mol%(Bi1/2Na1/2)TiO3 (BBNT1) and 90 mol%BaTiO3–10 mol%(Bi1/2Na1/2)TiO3 (BBNT10) were prepared by the conventional solid state reaction method. The effect of donor concentration on the microstructure and PTCR behavior of the BBNT ceramics were investigated. The results show that all BBNT1 and BBNT10 ceramics have formed a single perovskite structure with tetragonal phase when sintered in air or N2. 0.2 mol% Y-doped BBNT1, sintered at 1,330 °C for 30 min in air, has room-temperature resistivity (ρ25) of ~60 Ω cm and resistivity jump [maximum resistivity (ρmax)/minimum resistivity (ρmin)] of ~4.2 orders of magnitude with Tc about 150 °C. 0.4 mol% Y-doped BBNT10, sintered at 1,250 °C for 3 h in N2, has ρ25 of ~100 Ω cm and resistivity jump of ~4.7 orders of magnitude with Tc about 180 °C. The BBNT10 has higher breakdown voltage of 200 V/mm (a.c.) than that of BBNT1, making these BBNT10 ceramics promising candidates for high temperature lead-free PTCR materials.
学科主题	无机非金属材料
语种	中文
公开日期	2014-12-18
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/4960]
专题	上海硅酸盐研究所_无机功能材料与器件重点实验室_期刊论文
推荐引用方式 GB/T 7714	Leng SL,Li GR,Zheng LY,et al. Effect of donor concentration on the PTCR behavior of Y-doped BaTiO3–(Bi1/2Na1/2)TiO3 ceramics[J]. Journal of Materials Science: Materials in Electronics,2013,24(1):431.
APA	冷森林,李国荣,郑嘹赢,WeiShi99,&YaZhu99.(2013).Effect of donor concentration on the PTCR behavior of Y-doped BaTiO3–(Bi1/2Na1/2)TiO3 ceramics.Journal of Materials Science: Materials in Electronics,24(1),431.
MLA	冷森林,et al."Effect of donor concentration on the PTCR behavior of Y-doped BaTiO3–(Bi1/2Na1/2)TiO3 ceramics".Journal of Materials Science: Materials in Electronics 24.1(2013):431.