| 碲及其复合物对BSCCO,V_2O_3和Fe_2O_3的物理性能的影响 |
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| 引用本文： | 曾文光,邓雪儿,林长净.碲及其复合物对BSCCO,V_2O_3和Fe_2O_3的物理性能的影响[J].东莞理工学院学报,1994(1). |
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| 作者姓名： | 曾文光 邓雪儿 林长净 |
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| 作者单位： | 东莞理工学院电子工程系
(曾文光，邓雪儿)，香港城市理工学院(林长净) |
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| 摘 要： | 在高温超导陶瓷、钒氧化物和铁氧体中加入碲或碲与金属的复合氧化物,在恰当的工艺条件下,可以提高试样的硬度、致密度、钇系高Tc超导陶瓷的电流密度,降低铁氧体的居里点,导致铋系高温超导体出现高温亚稳相,在钒氧化物中引起介电常数峰以及使340K相变时电阻率曲线出现奇异。本文用固态相变的观点和元素碲的特性讨论了这些现象。
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| 关 键 词： | 高温超导陶瓷 钒氧化物 铁氧体 碲 固态相变 |
THE EFFECT OF TELLURIUM AND ITS MIXTURE ON THE PHYSICAL PROPERTY OF BSCCO, V_2O_3 AND Fe_2O_3 |
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| Zeng Wenguang Deng Xueer.THE EFFECT OF TELLURIUM AND ITS MIXTURE ON THE PHYSICAL PROPERTY OF BSCCO, V_2O_3 AND Fe_2O_3[J].Journal of Dongguan Institute of Technology,1994(1). |
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| Authors: | Zeng Wenguang Deng Xueer |
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| Institution: | Zeng Wenguang Deng Xueer
(Department of Electronic Engineering)
Lin Changjing
(City Polytechnic of Hong Kong) |
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| Abstract: | The samples of Bi -type high temperature superconductor (BSCCO), vanadium trioxide and ferrite added tellurium - metal complex oxide have been fibricated using the solid state reaction method. It is found that: 1. the hardness and the compactedness is increased for all samples. 2.there is a metastable phase transition of BSCCO sample near 140k/200k.3. there is a NTC transition of vanadium trioxide sample at 340K, 4, there is a sharp change from NTC to PTC transition of vanadium trioxide contained 0.05 mol, tellurium. 5. the cruie -point of ferrite samples is decreased. Using the viewpoint of the solid state phase transition and the characteristic of the element tellurium, these results have been discussed. |
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| Keywords: | high temperature superconductor Vanadium oxide Ferrite Tellurium solid state phase transition |
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