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首页> 外文期刊>Physica, C. Superconductivity and its applications >High speed production of YBCO precursor films by advanced TFA-MOD process
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High speed production of YBCO precursor films by advanced TFA-MOD process

机译：通过先进的TFA-MOD工艺高速生产YBCO前体薄膜

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摘要

YBa2Cu3O7-y (YBCO) long tapes derived from the metal-organic deposition (MOD) method using the starting solution containing trifluoroacetate (TFA) have been developed with high critical currents (I-c) over 200 A/cm-width. However, high speed production of YBCO films is simultaneously necessary to satisfy the requirements of electric power device applications in terms of cost and the amounts of the tapes. In this work, we developed a new TFA-MOD starting solution using F-free salt of Y, TEA salt of Ba and Cu-Octylate for application to the coating/calcination process and discussed several issues by using the Multi-turn (MT) Reel-to-Reel (RTR) system calcination furnace for the purpose of high throughput without degradation of the properties. The coating system was improved for uniform deposition qualities in both longitudinal and transversal directions. YBCO films using the new starting solution at the traveling rate of 10 m/h in coating/calcination by the MT-RTR calcination furnace showed the values of the critical current density of 1.6 MA/cm(2) as thick as 1.5 mu m at 77 K under the self fields after firing at the high heating rate in the crystallization.
机译：使用含三氟乙酸盐（TFA）的起始溶液通过金属有机沉积（MOD）方法获得的YBa2Cu3O7-y（YBCO）长带已开发出了超过200 A / cm宽的高临界电流（I-c）。然而，就成本和带的数量而言，为了满足电力设备应用的要求，同时需要高速生产YBCO膜。在这项工作中，我们开发了一种新的TFA-MOD起始溶液，该溶液使用Y的无氟盐，Ba的TEA盐和邻苯二甲酸铜盐应用于涂层/煅烧过程，并通过使用多匝（MT）讨论了几个问题卷到卷（RTR）系统煅烧炉的目的是实现高产量而不降低性能。改进了涂层系统，使其在纵向和横向方向上的沉积质量均一。 YBCO膜在MT-RTR煅烧炉的涂覆/煅烧过程中使用新的起始溶液以10 m / h的行进速度进行涂覆/煅烧时，其临界电流密度1.6 MA / cm（2）的值在1.5微米时为1.5微米。在结晶中以高加热速率烧结后在自电场下达到77K。

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