Polythermal method of Top-Seeded Solution-Growth for large-sized single crystals of REBa2Cu3O7 − δ. (15th April 2016)

• Record Type: Journal Article
• Authors: Xiang, Hui; Guo, Linshan; Li, Haochen; Cui, Xiangxiang; Qian, Jun; Hussain, Ghulam; Liu, Yan; Yao, Xin; Rao, Qunli; Zou, Z.Q.
• Is Part Of: Scripta materialia. Volume 116(2016)
• Page Start: 36
• Page End: 39
• Publication Date: 2016-04-15
• Subjects: Czochralski technique -- High-temperature superconductors -- Crystallization -- Metastable phases -- Polythermal; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2016.01.037
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: To overcome demerits of the low production efficiency in the prior art isothermal method (constant supercooling) of Top-Seeded Solution-Growth (TSSG), we applied the polythermal method (increasing supercooling), and a large YBa2 Cu3 O7 − δ single crystal with a dimension of a × b × c = 13.8 × 13.5 × 12.3 mm was obtained via a cooling rate of 0.5 K/h, gaining a growth rate nearly 2 times faster than that by constant supercooling. The optimal growth mode was proposed for more REBa2 Cu3 O7 − δ (RE = Sm, Nd) materials basing on their characteristics of solubility curves. Graphical abstract: