BaTiO3基陶瓷材料的PTCR效应与施受主掺杂密切相关.通过Bi2O3、Sb2O3等蒸汽掺杂,材料的PTCR效应可以得到提高.然而,蒸汽掺杂之后,PTCR效应提高的幅度在含受主Mn的材料中比纯施主掺共的材料中要大得多.这与Bi2O3蒸汽掺杂和Mn的协同作用密切相关.这种协同作用可能进一步形成三价Mn或中性钡缺位相关的更为稳定的复合缺陷,从而增大了电子捕获中心的浓度,使材料PTCR效应大幅度提高.
参考文献
| [1] | Haayman P W;Dam R W;Klasens H A .Method of Producing a Semiconding Materials[P].German Pat 929350,1955. |
| [2] | Ihrig H .[J].Journal of the American Ceramic Society,1981,64(10):617-620. |
| [3] | Heywang W .Electronics[J].Solid-State Electronics,1961,3(03):51-58. |
| [4] | Qi Jiangquan;Li Longtu;Zbu Qing.The Relationship between PTCR Effect and Donor Concent in Yb-doped BaTiO3 Ceramies[A].Kunming,2001 |
| [5] | Qi JQ.;Zhang ZT.;Tang ZL.;Chen WP. .ACCEPTOR COMPENSATION IN (SB,Y)-DOPED SEMICONDUCTING BA1-XSRXTIO3[J].Journal of Materials Science,1997(3):713-717. |
| [6] | Qi JQ.;Wu YJ.;Li LT.;Chen WP. .Improvement of the PTCR effect in Ba1-xSrxTiO3 semiconducting ceramics by doping of Bi2O3 vapor during sintering[J].Journal of the American Ceramic Society,1998(2):437-438. |
| [7] | 齐建全,桂治轮,李龙土.蒸汽掺杂-一种新的钛酸钡基PTCR陶瓷的掺杂方法[J].无机材料学报,1999(03):408-412. |
| [8] | Qi J Q;GuiZ L;Li L T et al.[J].Journal of Materials Research,1999,14(08):3328-3329. |
| [9] | 齐建全;桂治轮;李龙土 等.[J].压电与声光,1998,20(06):408-410. |
| [10] | Kutty T R N;Murugaraj P;Gajbhiye N S .[J].Materials Research Bulletin,1985,20(05):565-574. |
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