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Optimization of the processing parameters of high temperature superconducting glass-ceramics: center director's discretionary fund final report
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kaukler, W. F. Ethridge, E. C. |
| Copyright Year | 1993 |
| Description | A number of promising glass forming compositions of high Tc superconducting Ba-Sr-Ca-Cu-O (BSCCO) materials were evaluated for their glass-ceramic crystallization ability. The BSCCO ceramics belonging to the class of superconductors in the Ba-Sr-Ca-Cu-O system were the focus of this study. By first forming the superconducting material as a glass, subsequent devitrification into the crystalline (glass-ceramic) superconductor can be performed by thermal processing of the glass preform body. Glass formability and phase formation were determined by a variety of methods in another related study. This study focused on the nucleation and crystallization of the materials. Thermal analysis during rapid cooling aids in the evaluation of nucleation and crystallization behavior. Melt viscosity is used to predict glass formation ability. |
| File Size | 875940 |
| Page Count | 24 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940009465 |
| Archival Resource Key | ark:/13960/t90916242 |
| Language | English |
| Publisher Date | 1993-09-01 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Viscosity Cooling Preforms Bscco Superconductors Nucleation Crystallization Glass Crystallinity Thermal Analysis Ceramics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
