A modular ex situ conversion process for thick MOD-fluoride RBCO precursors

Ron Feenstra; Fredrick A. List; Xiaoping Li; Martin W. Rupich; Dean J. Miller; Victor A. Maroni; Yifei Zhang; James R. Thompson; David K. Christen

doi:10.1109/TASC.2009.2019215

A modular ex situ conversion process for thick MOD-fluoride RBCO precursors

Ron Feenstra, Fredrick A. List, Xiaoping Li, Martin W. Rupich, Dean J. Miller, Victor A. Maroni, Yifei Zhang, James R. Thompson, David K. Christen

Deposition Science and Technology

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Following a review of heating induced chemical and structural changes in R.Ba₂Cu₃0₇ (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.

Original language	English
Article number	5067174
Pages (from-to)	3131-3135
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	19
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2009.2019215
State	Published - Jun 2009

Funding

Manuscript received August 26, 2008. First published June 05, 2009; current version published July 15, 2009. This work was supported by the Office of Electricity Delivery and Energy Reliability, Superconductivity Program for Electric Power Systems, U.S. Department of Energy under Contract DE-AC05-00OR22725 with Oak Ridge National Laboratory, managed and operated by UT-Battelle, LLC. The work at Argonne was performed under Contract W-31-109-ENG-38.

Funders	Funder number
Superconductivity Program for Electric Power Systems
U.S. Department of Energy	DE-AC05-00OR22725
Office of Electricity Delivery and Energy Reliability
Oak Ridge National Laboratory	W-31-109-ENG-38

Keywords

Epitaxial growth
Fluorine compounds
High-temperature superconductors
YBCO films

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10.1109/TASC.2009.2019215

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title = "A modular ex situ conversion process for thick MOD-fluoride RBCO precursors",

abstract = "Following a review of heating induced chemical and structural changes in R.Ba2Cu307 (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.",

keywords = "Epitaxial growth, Fluorine compounds, High-temperature superconductors, YBCO films",

author = "Ron Feenstra and List, {Fredrick A.} and Xiaoping Li and Rupich, {Martin W.} and Miller, {Dean J.} and Maroni, {Victor A.} and Yifei Zhang and Thompson, {James R.} and Christen, {David K.}",

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AU - Maroni, Victor A.

AU - Zhang, Yifei

AU - Thompson, James R.

AU - Christen, David K.

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AB - Following a review of heating induced chemical and structural changes in R.Ba2Cu307 (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.

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A modular ex situ conversion process for thick MOD-fluoride RBCO precursors

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