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首页> 外文期刊>Physica, C. Superconductivity and its applications >Development of multi-turn reel-to-reel crystallization large furnace for high production rate of YBa2Cu3Oy coated conductors derived from TFA-MOD process
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Development of multi-turn reel-to-reel crystallization large furnace for high production rate of YBa2Cu3Oy coated conductors derived from TFA-MOD process

机译：开发TFA-MOD工艺获得高生产率YBa2Cu3Oy涂层导体的多匝线对盘结晶大炉

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摘要

YBa2Cu3Oy (YBCO) coated conductors were fabricated by trifluoroacetates (TFA)-metal organic deposition (MOD) previously using a single reel-to-reel (RTR) crystallization furnace with a gas flow system parallel to the tape surface which could realize only a low production rate. In this study, we developed a new muiti-turn (MT) RTR furnace with a vertical gas flow system to increase the production rate of the crystallization step and attained the Uniform reaction in the tapes of the multi-turn system. We fabricated YBCO films with different conditions partial pressure of water vapor, the total pressure and the gas flow volume using the MT-RTR furnace with the vertical gas now system, in order to investigate the influence of the processing parameters on the growth rate and the superconducting properties of the YBCO films. It was found that the growth rate of the YBCO phase film increased under the conditions of the high gas flow rate, the low total pressure and the high water vapor partial pressure. As a result, 21 times higher J(c) value was attained at 17 times faster growth rate than that without controlling the processing parameters in the crystallization step. This is thought to be due to the suppression of coarsening Of Y2Cu2O5 and CuO particles in the precursor film. Consequently, the high I-c,I-end-to-end value of 250 A was achieved in a 5 m long tape fabricated at the production rate of 3 m/h using the only two lanes of the entire MT-RTR crystallization furnace with 10 lanes.
机译：YBa2Cu3Oy（YBCO）涂层导体是由三氟乙酸盐（TFA）-金属有机沉积（MOD）制成的，以前使用单卷对卷（RTR）结晶炉，且气体流动系统与带表面平行，仅能实现低带电生产率。在这项研究中，我们开发了一种带有垂直气流系统的新型多回转（MT）RTR炉，以提高结晶步骤的生产率，并实现了多回转系统带中的均匀反应。为了研究工艺参数对水蒸气分压，总压和气体流量的影响，我们使用MT-RTR炉和立式气体现在系统制造了YBCO薄膜，以研究工艺参数对生长速率和膜厚的影响。 YBCO薄膜的超导性能。发现在高气体流量，低总压力和高水蒸气分压的条件下，YBCO相膜的生长速率增加。结果，与不控制结晶步骤中的加工参数相比，以17倍的生长速度获得了21倍的J（c）值。认为这是由于抑制了前体膜中的Y 2 Cu 2 O 5和CuO颗粒的粗大化。因此，使用整个MT-RTR结晶炉的仅有两个通道，以3 m / h的生产率在5 m长的胶带中以3 m / h的生产率制造出的Ic，I端到端的高值250 A车道。

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