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Solubility of YBa2Cu3O7−δ and Nd1+xBa2−xCu3O7±δ in the BaO/CuO flux by C. Klemenz; H.J. Scheel is a Engineering article available to read on EtoBox.
What is Solubility of YBa2Cu3O7−δ and Nd1+xBa2−xCu3O7±δ in the BaO/CuO flux about?
The knowledge of the phase relations and solubilities in the Y-Ba-Cu-O and Nd-Ba-Cu-O systems are of fundamental importance for crystal growth and liquid-phase epitaxy of YBa Cu O \B (YBCO) and NdBCO). The determination of the solubility curve of YBCO and NdBCO in a BaO/CuO flux containing 31 mol% BaO was done by observation of the formation and dissolution of crystals on the surface of the high-temperature solution. The heat of the solution of YBCO at 1000°C was found to be 34.7 kcal/mol, and for NdBCO at 1060°C, it was found to be 28.1 kcal/mol. The determination of the solubility curves requires special care, and the problems of the time-dependent shift of the solution composition due to the corrosion of the crucible is discussed. The scatter of the solubility data published by different authors could be due to the use of solutions with different Ba : Cu ratios, different determination methods, i.e. different crystallization mechanisms, different crucibles and starting chemicals.
Who reads Solubility of YBa2Cu3O7−δ and Nd1+xBa2−xCu3O7±δ in the BaO/CuO flux?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- C. Klemenz; H.J. Scheel
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-0248)
- Published
- 1999
- Language
- EN
- Field
- Engineering (Physical Sciences)