| 固溶体KTa1—xNbxO3陶瓷的热释电性质 |
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| 引用本文： | 顾豪爽,顾期斌.固溶体KTa1—xNbxO3陶瓷的热释电性质[J].湖北大学学报(自然科学版),1991,13(4):365-368. |
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| 作者姓名： | 顾豪爽 顾期斌 |
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| 作者单位： | 湖北大学物理系
(顾豪爽，邝安祥)，湖北省建材工业学校(顾期斌) |
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| 摘 要： | 本文首次报道KTN铁电陶瓷的热释电系数λ与温度的依赖关系。测量了极化强度P。结果表明,x=0.5和0.6的样品在25℃时,P=4.6μc/cm~2和5.0μc/cm~2;λ=2.0×10~(-8)c/cm~2K和1.7×10~(-8)c/cm~2K。并讨论了Nb含量对极化强度的影响。
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| 关 键 词： | 固溶体 陶瓷 热释电 钽铌酸钾 极化 |
PYROELECTRIC PROPERTIES OF SOLID-SOLUTION KTa_(1-x)Nb_xO_3 CERAMICS |
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| Gu Haoshuang Kuang Anxiang.PYROELECTRIC PROPERTIES OF SOLID-SOLUTION KTa_(1-x)Nb_xO_3 CERAMICS[J].Journal of Hubei University(Natural Science Edition),1991,13(4):365-368. |
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| Authors: | Gu Haoshuang Kuang Anxiang |
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| Institution: | Gu Haoshuang Kuang Anxiang
(Hubei University)
Gu Qibin
(Industral Colledge of Constructive Material) |
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| Abstract: | The temperature dependence of the pyroelectric coefficient (A) of potassium Niobate-Tantalate ferroelectric ceramics is reported for the frrst time in this paper. The remanent polarization (P)is measured. The ceramics (r=0. 5 and 0. 6) exhibit the remanent polarization P=4. 6x 10-6 coul/cm2 and 5. 0x 10-6coul/cm2t pyroelectric coefficient A=2 X 10-8coul/cm2K and 1. 7x 10-8 coul/cm2K at 25C- The effect of Niobium content (z) on the remanent polarization (P)is discussed. |
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| Keywords: | Potassium Niobate-Tantalate Pyroelectric coefficient Remanent polarization |
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