Bulk manufacture of YBCO powders by coprecipitation

Bhargava A., Mackinnon I.D.R., Yamashita T. and Page D. (1995) Bulk manufacture of YBCO powders by coprecipitation. Physica C: Superconductivity and its applications, 241 1-2: 53-62. doi:10.1016/0921-4534(94)00638-5


Author Bhargava A.
Mackinnon I.D.R.
Yamashita T.
Page D.
Title Bulk manufacture of YBCO powders by coprecipitation
Journal name Physica C: Superconductivity and its applications   Check publisher's open access policy
ISSN 0921-4534
Publication date 1995-01-01
Sub-type Article (original research)
DOI 10.1016/0921-4534(94)00638-5
Volume 241
Issue 1-2
Start page 53
End page 62
Total pages 10
Subject 2102 Curatorial and Related Studies
2208 Electrical and Electronic Engineering
2504 Electronic, Optical and Magnetic Materials
3104 Condensed Matter Physics
Abstract This work presents an assessment of the coprecipitation technique for the reliable production of high-temperature superconducting (HTS) copper-oxide powders in quantities scaled up to 1 kg. This process affords precise control of cation stoichiometry (< 4% relative), occurs rapidly (almost instantaneously) and can be suitably developed for large-scale (e.g. tonne) manufacture of HTS materials. The process is based upon a simple control of the chemistry of the cation solution and precipitation with oxalic acid. This coprecipitation method is applicable to all copper-oxides and has been demonstrated in this work using over thirty separate experiments for the following compositions: YBa2Cu3O7-δ, Y2BaCuO5 and YBa2Cu4O8. The precursor powders formed via this coprecipitation process are fine-grained (∼ 5-10 nm), chemically homogeneous at the nanometer scale and reactive, Conversion to phase-pure HTS powders can therefore occur in minutes at appropriate firing temperatures.
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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