A Modular Ex Situ Conversion Process for Thick MOD-Fluoride RBCO Precursors
A Modular Ex Situ Conversion Process for Thick MOD-Fluoride RBCO Precursors
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DOI：
10.1109/tasc.2009.2019215
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发表时间：
2009-06
影响因子：
1.8
通讯作者：
R. Feenstra;F. List;Xiaoping Li;M. Rupich;D.J. Miller;V. Maroni;Yifei Zhang;J. R. Thompson;D. Christen
中科院分区：
文献类型：
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作者：
R. Feenstra;F. List;Xiaoping Li;M. Rupich;D.J. Miller;V. Maroni;Yifei Zhang;J. R. Thompson;D. Christen
在回顾了通过金属有机沉积 (MOD) 和物理气相沉积 (PVD) 沉积的 RBa2Cu3O7 (RBCO) 氟化物前体（R = Y 稀土）中加热引起的化学和结构变化后，介绍了一种由连续的、功能不同的、简短的退火步骤（模块）组成的模块化工艺。通过解耦同时发生的事件，模块化工艺提供了一个框架，用于解决与异位转换退火的温度斜坡相关的复杂动力学。描述了用于修改 F 浓度、孔隙率和微观结构以及 RBCO 成核的模块。
Following a review of heating induced chemical and structural changes in RBa2Cu3O7 (RBCO) fluoride precursors (R = rare earth of Y) deposited by metalorganic deposition (MOD) and physical vapor deposition (PVD), a modular process comprising successive, functionally distinct, brief annealing steps (modules) is introduced. By decoupling events that otherwise occur simultaneously, the modular process provides a framework for addressing the complex kinetics associated with the temperature ramp of the ex situ conversion anneal. Modules for modifying the F concentration, porosity and microstructure, and RBCO nucleation are described.