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Ion-Beam-Assisted Deposition of Magnesium Oxide Films for Coated Conductors.

DE200242850

Publication Date	2002
Personal Author	Weber, T. P.; Ma, B.; Balachandran, U.; McNallan, M.
Page Count	12
Abstract	The development of high critical-temperature thin-film superconductors and coated conducting wires is important for electric power applications. To achieve high transport current density, template films are necessary for the successful deposition of biaxially aligned YBa2Cu3O7-x (YBCO) on flexible metal substrates. We grew biaxially aligned magnesium oxide (MgO) template films by ion-beam-assisted deposition with electron-beam evaporation. MgO films of approximately 100 angstroms thickness were deposited on Si3N4-coated Si substrates at a deposition rate of approximately 1.5 angstroms/sec with an ion flux of approximately 110 microA/cm2 bombarding the substrate at a 45 degree angle. To study crystalline structure by X-ray diffraction, we deposited an additional layer of MgO. Good in- and out-of-plane alignment was observed, with (111) -scan full-width half-maximum (FWHM) of 6.2 degrees and (002) micro-scan FWHM of 2.2 degrees.
Keywords	Energy beam deposition Ion beams Laser radiation Yttrium oxides Barium oxides Copper oxides Electric power Supercondutors Coated conductors
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL. Energy Technology Div.; Department of Energy, Washington, DC.; Illinois Univ. at Urbana-Champaign. Dept. of Materials Science and
Supplemental Notes	Prepared in cooperation with Illinois Univ. at Urbana-Champaign. Dept. of Materials Science and Engineering. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200222

Ion-Beam-Assisted Deposition of Magnesium Oxide Films for Coated Conductors.

Ion-Beam-Assisted Deposition of Magnesium Oxide Films for Coated Conductors.
DE200242850

Publication Date	2002
Personal Author	Weber, T. P.; Ma, B.; Balachandran, U.; McNallan, M.
Page Count	12
Abstract	The development of high critical-temperature thin-film superconductors and coated conducting wires is important for electric power applications. To achieve high transport current density, template films are necessary for the successful deposition of biaxially aligned YBa2Cu3O7-x (YBCO) on flexible metal substrates. We grew biaxially aligned magnesium oxide (MgO) template films by ion-beam-assisted deposition with electron-beam evaporation. MgO films of approximately 100 angstroms thickness were deposited on Si3N4-coated Si substrates at a deposition rate of approximately 1.5 angstroms/sec with an ion flux of approximately 110 microA/cm2 bombarding the substrate at a 45 degree angle. To study crystalline structure by X-ray diffraction, we deposited an additional layer of MgO. Good in- and out-of-plane alignment was observed, with (111) -scan full-width half-maximum (FWHM) of 6.2 degrees and (002) micro-scan FWHM of 2.2 degrees.
Keywords	Energy beam deposition Ion beams Laser radiation Yttrium oxides Barium oxides Copper oxides Electric power Supercondutors Coated conductors
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL. Energy Technology Div.; Department of Energy, Washington, DC.; Illinois Univ. at Urbana-Champaign. Dept. of Materials Science and
Supplemental Notes	Prepared in cooperation with Illinois Univ. at Urbana-Champaign. Dept. of Materials Science and Engineering. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200222