Preparation of high-T c superconducting film in the system of Bi-Sr-Ca-Cu-O from sol-gel process and its properties
| Autor: | Tadanori Sei, Toshio Tsuchiya, Taichi Okano |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
chemistry.chemical_classification
Superconductivity Materials science Mechanical Engineering Transition temperature Analytical chemistry Mineralogy Crystal growth law.invention chemistry Mechanics of Materials law X-ray crystallography General Materials Science Thin film Crystallization Inorganic compound Sol-gel |
| Zdroj: | Journal of Materials Science. 27:4085-4088 |
| ISSN: | 1573-4803 0022-2461 |
| Popis: | High-T c superconducting Bi2Sr2CaCu2Ox films withT c off =80 K were prepared by the dipping method of sol-gel processing using inorganic salts. The influence of the preparation conditions on the superconducting properties of the derived material is reviewed. Bi, Sr, Ca and Cu nitrates were used as raw materials. Glycerol was used as solvent. The thickness of films made by the dip method was about 0.5 μm. The films were crystallized by heat-treatment at 830°C for 10 min.T c off of films was 80 K andJ c at 77 K was more than 8 kA cm−2. Synthesis of high-T c superconducting films was very easy and the crystallization of films was possible with a relatively low heat-treatment temperature. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink