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MPMG 공정을 이용한 입자크기별 고온초전도 후막의 특성분석
최명호,조동언,조병서,한병성 전북대학교 공업기술연구소 1997 工學硏究 Vol.28 No.-
YBCO thick films using the melt-powder-melt-growth(MPMG) method were fabricated to achieve high critical current density. The ratio of mixed powders is YBa_2Cu_3O : Y_2BaCuO = 1 : 0.4. The highest critical temperature showed 87 K in a particle size of 63μm. Also, we have fabricated the painted Y-Ba-Cu-O thick films on the alumina oxide substrates by the same process dependent on size of particles. The sizes and the number of voids increased with increasing that of particles.