Powder processing of high temperature ceramic superconductor Tl2Ba2Ca2Cu3O10
| Autor: | K. W. Wong, G. F. Sun, Y. Xin, D. F. Lu, D. Knapp, B. R. Xu, W. S. He, R. Farr |
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| Rok vydání: | 1995 |
| Předmět: |
High-temperature superconductivity
Materials science Superconducting wire Metallurgy Pellets Magnetic separation Mineralogy Sintering engineering.material Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention law visual_art Materials Chemistry visual_art.visual_art_medium engineering Ceramic Electrical and Electronic Engineering Electroceramics Ball mill |
| Zdroj: | Journal of Electronic Materials. 24:1821-1824 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/bf02652990 |
| Popis: | We have developed a technique to produce high quality Tl2Ba2Ca2Cu3O10 powders used for making superconducting wire, tape, lead, shield, and other large scale bulk applications. Starting with T12O3, BaO2, CaO, and CuO, we mix and grind these chemicals with a machine ball mill and then press the ground mixture into pellets. The pellets are sintered at about 895‡C for at least 30 h in an oxygen atmosphere. The sintered material is mainly the Tl2Ba2Ca2Cu3O10 compound. To get more homogeneous superconductor powders, we pulverize the sintered material and use a magnetic superconducting material selector to separate and grade the material. Finally, the top grade material has a phase purity of |
| Databáze: | OpenAIRE |
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