Title: Critical Current Densities in Superconducting Y–Ba–Cu–O Prepared by Chelating Method
Abstract: The critical current of superconducting Y–Ba–Cu–O (YBCO) compounds prepared by the chelating method was investigated. The chelating agents used for this study were iminodiacetic acid (IDA), nitrilotriacetic acid (NTA), hydroxyethylethylenediaminetriacetic acid (HEDTA), ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA) and triethylenetetraminehexaacetic acid (TTHA). The precursor YBCO obtained from metal complexes heving large stability constants, such as HEDTA, EDTA, DTPA, and TTHA, had very fine and homogeneous particles. The critical current density of YBCO in a block of 1×4×15 mm 3 which was sintered at 880∼910°C for 24 h, and then anealed at 500°C in O 2 flow was estimated to be 500 A/cm 2 at 77 K in zero applied magnetic field.
Publication Year: 1990
Publication Date: 1990-10-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 6
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