Energy dispersive X-ray analysis of a Y2BaCuO5 grain inside a typical melt-textured growth YBa2Cu3Oy superconductor

✍ Scribed by J.C.L. Chow; P.C.W. Fung

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 884 KB
• Volume: 223
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(94)00446-3

✦ Synopsis

Y-deficient phase' has been found around the non-superconducting Y2BaCuOS (Y-2 11) grains in the melt-textured growth ( MTG) YBazCusO,, (Y-l 23 ) superconductor using energy dispersive X-ray analysis (EDX ) . This result shows that the effective volume of non-Y-123 Brain (which might act as magnetic flux pinning centre) should be greater than that of the visible one. According to the MTG crystal growth concept developed recently, the formation of such a 'Y-deficient phase' may be due to the crystallization of umeacted Ba and Cu rich liquids near the boundary of the Y-2 11 Brain during the crystal growth process.