Controlled growth and critical currents of bi-textured YBa2Cu3O7−δ films on yttria stabilized zirconia substrate
✍ Scribed by S.Y. Dong; D.H. Kim; H.S. Kwok
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 636 KB
- Volume
- 212
- Category
- Article
- ISSN
- 0921-4534
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Thick films of YBa2Cu307.O (YBCO) have been fabricated on Y203 substrates by reaction between a mixture of BaCuO 2 and Cut. It is necessary to fire films above the binary eutectic temperature in order for adequate reaction to take place. Films fired at 950°C and 1000°C are polycrystalline in nature
Thin films of YBa2Cu307\_S were prepared in-situ on SrTi0 3 , Zr02, LaGa03, Ah03 and (for the first time) NdAlCa04 substrates by dc-sputtering and laser ablation using stoichiometric ceramic targets. In case of SrTi0 3 single crystalline films with narrow transitions to superconductivity (boTe ~0.5K