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Self-seeded melt growth of Au-doped Nd-Ba-Cu-O
| Content Provider | Scilit |
|---|---|
| Author | Smith, Patrick J. Cardwell, David A. Babu, Nadendla Hari Kambara, Makoto Shi, Yun-Hua |
| Copyright Year | 2001 |
| Description | Journal: Superconductor Science and Technology Nd-Ba-Cu-O (NdBCO) precursor powder composed primarily of $NdBa_{2}Cu_{3}O_{7-δ}$ (Nd-123) and 15 mol% $Nd_{4}Ba_{2}Cu_{2}O_{10}$ (Nd-422) containing 0.1 wt% Au has been prepared by spray drying and subsequent calcination for the fabrication of bulk melt-processed ceramics. The addition of Au results in the lowering of key process parameters, such as the peritectic melting point and solidification temperatures by up to 30 °C. Additional doping of Au/NdBCO with 5 wt% $Ag_{2}$O lowers these values further and has enabled the successful nucleation and limited growth of single grains under both air and reduced oxygen atmospheres using undoped NdBCO as a seed. The advantage of this self-seeded melt growth technique is that it avoids the lattice mismatch that results from the conventional use of a MgO seed. |
| Related Links | http://iopscience.iop.org/article/10.1088/0953-2048/14/8/319/pdf |
| Ending Page | 630 |
| Page Count | 7 |
| Starting Page | 624 |
| ISSN | 09532048 |
| e-ISSN | 13616668 |
| DOI | 10.1088/0953-2048/14/8/319 |
| Journal | Superconductor Science and Technology |
| Issue Number | 8 |
| Volume Number | 14 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2001-07-24 |
| Access Restriction | Open |
| Subject Keyword | Journal: Superconductor Science and Technology Metallurgy and Metallurgical Engineering Seeded Melt Ba Cu Melt Growth Limited Growth Spray Drying |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ceramics and Composites Materials Chemistry Metals and Alloys Condensed Matter Physics Electrical and Electronic Engineering |
