Biaxially Aligned Template Films Fabricated by Inclined-substrate Deposition for YBCO-coated Conductor Applications PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Biaxially Aligned Template Films Fabricated by Inclined-substrate Deposition for YBCO-coated Conductor Applications PDF full book. Access full book title Biaxially Aligned Template Films Fabricated by Inclined-substrate Deposition for YBCO-coated Conductor Applications by . Download full books in PDF and EPUB format.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Inclined substrate deposition (ISD) has the potential for rapid production of high-quality biaxially textured buffer layers, which are important for YBCO-coated conductor applications. We have grown biaxially textured MgO films by ISD at deposition rates of 20-100[angstrom]/sec. Columnar grains with a roof-tile surface structure were observed in the ISD-MgO films. X-ray pole figure analysis revealed that the (002) planes of the ISD-MgO films are tilted at an angle from the substrate normal. A small[phi]-scan full-width at half maximum (FWHM) of[approx]9[sup o] was observed on MgO films deposited at an inclination angle of 55[sup o]. In-plane texture in the ISD MgO films developed in the first 0.5[micro]m from the interface, then stabilized with further increases in film thickness. YBCO films deposited by pulsed laser deposition on ISD-MgO buffered Hastelloy C276 substrates were biaxially aligned with the c-axis parallel to the substrate normal. T[sub c] of 91 K with a sharp transition and transport J[sub c] of 5.5 x 10[sup 5] A/cm[sup 2] at 77 K in self-field were measured on a YBCO film that was 0.46-[micro]m thick, 4-mm wide, 10-mm long.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Inclined substrate deposition (ISD) has the potential for rapid production of high-quality biaxially textured buffer layers, which are important for YBCO-coated conductor applications. We have grown biaxially textured MgO films by ISD at deposition rates of 20-100[angstrom]/sec. Columnar grains with a roof-tile surface structure were observed in the ISD-MgO films. X-ray pole figure analysis revealed that the (002) planes of the ISD-MgO films are tilted at an angle from the substrate normal. A small[phi]-scan full-width at half maximum (FWHM) of[approx]9[sup o] was observed on MgO films deposited at an inclination angle of 55[sup o]. In-plane texture in the ISD MgO films developed in the first 0.5[micro]m from the interface, then stabilized with further increases in film thickness. YBCO films deposited by pulsed laser deposition on ISD-MgO buffered Hastelloy C276 substrates were biaxially aligned with the c-axis parallel to the substrate normal. T[sub c] of 91 K with a sharp transition and transport J[sub c] of 5.5 x 10[sup 5] A/cm[sup 2] at 77 K in self-field were measured on a YBCO film that was 0.46-[micro]m thick, 4-mm wide, 10-mm long.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Get Book Here
Book Description
Author: Amit Goyal
Publisher: John Wiley & Sons
ISBN: 1118405951
Category : Technology & Engineering
Languages : en
Pages : 402
Get Book Here
Book Description
Included in this volume are papers on biaxial and triaxial crystallographic texturing, epitaxial growth on biaxially textured substrates, melt-processing of YBCO, and basic information about HTS materials concerning phase diagrams, measurement of physical properties, characterization, and effects of various defects including grain boundaries on supercurrent transmission. Proceedings of the symposium held at the 104th Annual Meeting of The American Ceramic Society, April 28-May1, 2002 in Missouri; Ceramic Transactions, Volume 140.
Author: Ruling Meng
Publisher: Wiley-American Ceramic Society
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 204
Get Book Here
Book Description
This comprehensive volume is a good summary of the latest developments in high-temperature superconductor (HTS) research and an excellent resource for researchers and managers working in this field. The book is divided into three chapters: coated conductors; BSCCO-based conductors, MgB2 , and other HTS materials; and control of microstructure. Papers include topics such as long-length flexible wires and tapes, melt-textured YBCO materials, processing of HTS materials, the current status and potential for YBCO-based coated conductors, BSCCO-based conductors, and MgB2 based wires. Proceedings of the symposium held at the 105th Annual Meeting of The American Ceramic Society, April 27-30, in Nashville, Tennessee; Ceramic Transactions, Volume 149.
Author: N. Koshizuka
Publisher: Springer Science & Business Media
ISBN: 4431668748
Category : Technology & Engineering
Languages : en
Pages : 1566
Get Book Here
Book Description
The 11th International Symposium on Superconductivity was held November 16-19, 1998, in Fukuoka, Japan. Convened annually since 1988, the symposium covers the whole field of superconductivity from fundamental physics and chemistry to new applications. At the 11th Symposium, there was increased interest reported in the development of trial devices using bismuth wires and yttrium-based bulk materials. Among the presentations were those that clearly defined the development targets for next-generation yttrium-based wires and bulk materials and single-flux quantum (SFQ) circuits. Other popular topics were high-temperature superconductivity applications such as SQUIDs, microwave filters, and cryocooler-cooled magnets. With more than 600 participants from 18 countries, the symposium provided an excellent forum for exchanges of the most recent information in the field of superconductivity.
Author: M. P. Paranthaman
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 416
Get Book Here
Book Description
Major advances in the years leading up to publication of this 2002 book in high-temperature superconductor (HTS) research resulted in the increased use of HTS materials in commercial and precommercial applications. These materials have in common the complexity of their multicomponent chemistry. Consequently, it is not surprising that many aspects of the interplay among microscopic structure, macroscopic properties and processing are still not fully understood. This book offers a comprehensive status review of high-temperature superconductors from the near-term commercialization of the first-generation BSCCO tapes, to the continuing advancement of the second-generation YBCO-coated conductors, to the development of the new MgB2 material. Fundamental material properties studies, new growth methods, device and materials integration research, and developments in designing and growing new materials, all involving epitaxial superconducting thin films, are featured.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Get Book Here
Book Description
![Structural and Electrical Properties of Biaxially Textured YBa[sub 2]Cu[sub 3]O[sub 7-x] Thin Films on Buffered Ni-based Alloy Substrates PDF](https://books.google.com/books/content/images/frontcover/CpGcDAEACAAJ?fife=w80-h100)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Oxide high-T[sub c] superconducting wires and tapes with high critical current density (J[sub c]) are essential in future electrical power applications. Recently, YBa[sub 2]Cu[sub 3]O[sub 7[minus]x] (YBCO) thin films grown on Ni-based alloy tapes have attracted intense interest because of their promise for these applications. In order to achieve high J[sub c], buffer layers are necessary for fabricating biaxially aligned YBCO thin films. In our studies, yttria-stabilized zirconia (YSZ) layers were deposited on Ni-based alloy substrate by ion-beam assisted deposition, and CeO[sub 2] buffer layers were subsequently deposited on the YSZ layer by pulsed laser deposition (PLD) or electron beam evaporation. In addition, MgO layers were deposited on Ni-based alloy substrates by inclined substrate deposition. Finally, biaxially textured YBCO thin films were deposited on these buffered metallic substrates by PLD under optimized conditions. The orientation and in-plane textures of YBCO and the buffer layers were characterized by X-ray diffraction[Theta]/2[Theta] scan, [phi]-scan, and pole figure analysis. The superconductive transition features were examined by measuring inductive T[sub c] and transport J[sub c].
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Get Book Here
Book Description
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 YBa2Cu3O{sub 7-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 ≈100 Å thickness were deposited on Si3N4-coated Si substrates at a deposition rate of ≈1.5 Å/sec with an ion flux of ≈110 [mu]A/cm2 bombarding the substrate at a 45{sup o} 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) [phi]-scan full-width half-maximum (FWHM) of 6.2{sup o} and (002) [omega]-scan FWHM of 2.2{sup o}.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Get Book Here
Book Description
Oxide high-T{sub c} superconducting wires and tapes with high critical current density (J{sub c}) are essential in future electrical power applications. Recently, YBa2Cu3O{sub 7-x} (YBCO) thin films grown on Ni-based alloy tapes have attracted intense interest because of their promise for these applications. In order to achieve high J{sub c}, buffer layers are necessary for fabricating biaxially aligned YBCO thin films. In our studies, yttria-stabilized zirconia (YSZ) layers were deposited on Ni-based alloy substrate by ion-beam assisted deposition, and CeO2 buffer layers were subsequently deposited on the YSZ layer by pulsed laser deposition (PLD) or electron beam evaporation. In addition, MgO layers were deposited on Ni-based alloy substrates by inclined substrate deposition. Finally, biaxially textured YBCO thin films were deposited on these buffered metallic substrates by PLD under optimized conditions. The orientation and in-plane textures of YBCO and the buffer layers were characterized by X-ray diffraction [Theta]/2[Theta] scan, [phi]-scan, and pole figure analysis. The superconductive transition features were examined by measuring inductive T{sub c} and transport J{sub c}.
