A sol-gel route to prepare TlCaBaCuO superconductor with Tc above 120 K

✍ Scribed by R.S. Liu; W.N. Wang; P.T. Wu; C.T. Chang

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 112 KB
• Volume: 162-164
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(89)90943-x

✦ Synopsis

The preparation of TI-Ca-Ba-Cu-O superconductor with Tc above 120 K from Ca-Ba-Cu-O precursor mixed with thallium oxide was obtained. The Ca-Ba-Cu-O precursor was prepared by sol-gel method from the proper complexation and polymerzation of the metal nitrates by citric acid and ethylene diamine. The excellent homogeneity and small particle size make the sol-gel precursor a potential candidate for Tl-Ca-Ba-Cu-O film preparation by screen-printing or spin-coating and thallium vapor diffusion.