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Microstructure and magnetization of y-ba-cu-o prepared by melt quenching, partial melting and doping
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Michael, Karen A. Hu, Shouxiang Hojaji, Hamid Barkatt, Aaron Alterescu, Sidney Thorpe, Arthur N. |
| Copyright Year | 1991 |
| Description | Y-Ba-Cu-O samples prepared by means of a variety of melt-based techniques exhibit high values for their magnetic properties compared with those of samples prepared by solid state sintering. These techniques include single-stage partial melting as well as melt quenching followed by a second heat treatment stage, and they have been applied to the stoichiometric 123 composition as well as to formulations containing excess yttrium or other dopants. The structure of these melt-based samples is highly aligned, and the magnetization readings exhibit large anisotropy. At 77 K and magnetic field intensities of about 2 kOe, diamagnetic susceptibilities as high as -14 x 10(exp -3) emu/g were obtained in the cases of melt-quenched samples and remanent magnetization values as high as 10 emu/g for samples prepared by partial melting. |
| File Size | 418131 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920012364 |
| Archival Resource Key | ark:/13960/t77t2m77w |
| Language | English |
| Publisher Date | 1991-01-01 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Magnetic Flux Stoichiometry Additives Melting Magnetization High Temperature Superconductors Quenching Solid State Flux Pinning Anisotropy Magnetic Permeability Sintering Barium Oxides Microstructure Copper Oxides Yttrium Oxides Diamagnetism Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
