Influences of Ba/Ti Ratios on the Positive Temperature Coefficient of Resistivity Effect of Y-Doped BaTiO3–(Bi1/2Na1/2)TiO3 Ceramics
文献类型：期刊论文
| 作者 | Leng SL(冷森林) ; Li GR(李国荣) ; Zheng LY(郑嘹赢) ; Cheng LH(程丽红) ; Ceng JT(曾江涛) |
| 刊名 | Journal of the American Ceramic Society
 |
| 出版日期 | 2011-02-07 |
| 卷号 | 94期号:5页码:1340-1342 |
| ISSN号 | 0002-7820 |
| 其他题名 | Influences of Ba/Ti Ratios on the Positive Temperature Coefficient of Resistivity Effect of Y-Doped BaTiO3–(Bi1/2Na1/2)TiO3 Ceramics |
| 通讯作者 | 李国荣 |
| 中文摘要 | Y-doped (1 x mol%)BaTiO3–x mol%(Bi1/2Na1/2)TiO3 (BBNTx) lead-free positive temperature coefficient of resistivity (PTCR) ceramics were prepared using a conventional solid sintering method. The Ba/Ti ratio was adjusted to obtain the optimized PTCR property. The results show that all 0.2 mol% Y-doped BBNT15 samples with various Ba/Ti ratios have formed a single tetragonal perovskite phase by sintering in an N2 atmosphere. The sample with 5 mol% (Bi1/2Na1/2)TiO3 has only a minor PTCR effect (maximum resistivity [qmax]/minimum resistivity [qmin]) when sintered in N2. However, the PTCR effect is enhanced over 3.0 orders of magnitude when the (Bi1/2Na1/2)TiO3 content is 48 mol%. The PTCR characteristics of the samples with Ti excess are superior to those with Ba excess. The optimum composition of 0.2 mol% Y-doped BBNT15 with Ba/Ti50.99, sintered at 1250oC for 3 h in an N2 atmosphere, has a low room-temperature resistivity (q25) of B100 X. cm and a high PTCR effect of 4.8 orders of magnitude with Tc around 190oC. |
| 学科主题 | 无机非金属材料 |
| 收录类别 | SCI收录 ; EI收录 |
| 语种 | 英语 |
| 公开日期 | 2012-07-05 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/1250]  |
| 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. Influences of Ba/Ti Ratios on the Positive Temperature Coefficient of Resistivity Effect of Y-Doped BaTiO3–(Bi1/2Na1/2)TiO3 Ceramics[J]. Journal of the American Ceramic Society,2011,94(5):1340-1342. |
| APA | 冷森林,李国荣,郑嘹赢,程丽红,&曾江涛.(2011).Influences of Ba/Ti Ratios on the Positive Temperature Coefficient of Resistivity Effect of Y-Doped BaTiO3–(Bi1/2Na1/2)TiO3 Ceramics.Journal of the American Ceramic Society,94(5),1340-1342. |
| MLA | 冷森林,et al."Influences of Ba/Ti Ratios on the Positive Temperature Coefficient of Resistivity Effect of Y-Doped BaTiO3–(Bi1/2Na1/2)TiO3 Ceramics".Journal of the American Ceramic Society 94.5(2011):1340-1342. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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