Shape-forming and densification of ceramic superconductors
Author(s) -
Om Prakash,
R. M. Anklekar,
Nayna Khosla,
Sunil Kumar,
B. K. Chaudhuri,
Casey A. Thomas,
A P Magadum,
Malotha Ramesh,
B. Tirumala Rao,
T.R. Rama Mohan
Publication year - 1991
Publication title -
bulletin of materials science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.35
H-Index - 72
eISSN - 0973-7669
pISSN - 0250-4707
DOI - 10.1007/bf02747495
Subject(s) - materials science , ceramic , composite material , compaction , sintering , polyvinyl butyral , plasticizer , polyethylene glycol , particle size , particle (ecology) , chemical engineering , oceanography , engineering , geology
Processing studies on varied shape-forming and densification of bulk ceramic superconductor, YBa2Cu3O7-delta, are reported in this paper. Polyvinyl butyral-polyethylene glycol-trichloroethylene has been found to be the best binder-plasticizer-solvent system in plastic shape-forming. The effect of initial particle morphology on final densification has been the most sensitive single parameter as compared to compaction pressure and final sintering durations at approximately 930-degrees-C. 1-2-3 powders of mean particle size approximately 1.94-mu-m have yielded sintered densities approximately 92% T.D. albeit with lower oxygen intake O6.7
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