Phase diagram studies in the SrO-CuO-Ti02 system: applications to YBCO coated conductors.

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SrTiO3 (STO) is a potential buffer layer material for use in YBa2Cu3Oy (YBCO) coated conductors based on the IBAD MgO process. However, the interactions with YBCO are not yet fully understood and little information exists in the way of phase diagrams. With this in mind, the tie-line between STO and SrCuO2 in the pseudo-ternary system SrO-CuO-TiO2 was investigated. Phase assemblages and compositions were determined by x-ray diffraction and electron microscopy in the temperature range of 1000oC to 1100oC in oxygen partial pressures of 1%, 10%, and 100%. Preliminary results showed that an appreciable amount of copper substitutes into the STO ... continued below

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6 p.

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Ayala, A. (Alicia); Holesinger, T. G. (Terry G.); Peterson, E. J. (Eric J.) & Archuleta, M. C. (Milena C.) January 1, 2001.

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SrTiO3 (STO) is a potential buffer layer material for use in YBa2Cu3Oy (YBCO) coated conductors based on the IBAD MgO process. However, the interactions with YBCO are not yet fully understood and little information exists in the way of phase diagrams. With this in mind, the tie-line between STO and SrCuO2 in the pseudo-ternary system SrO-CuO-TiO2 was investigated. Phase assemblages and compositions were determined by x-ray diffraction and electron microscopy in the temperature range of 1000oC to 1100oC in oxygen partial pressures of 1%, 10%, and 100%. Preliminary results showed that an appreciable amount of copper substitutes into the STO crystal structure. Conversely, Ti substitution into the SrCuO2 phase was not detected.

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6 p.

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  • Submitted to: MRS 2001 Fall Meeting, Boston, MA November 26-30, 2001

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  • Report No.: LA-UR-01-6735
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975904
  • Archival Resource Key: ark:/67531/metadc929152

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  • January 1, 2001

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 6:49 p.m.

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Ayala, A. (Alicia); Holesinger, T. G. (Terry G.); Peterson, E. J. (Eric J.) & Archuleta, M. C. (Milena C.). Phase diagram studies in the SrO-CuO-Ti02 system: applications to YBCO coated conductors., article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc929152/: accessed June 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.