Extension to AC Loss Minimization in High Temperature Superconductors
Abstract
In this period of research we concentrated our efforts on AC loss measurements of YBCO coated conductors on textured metallic substrates made in Cambridge. Several samples were prepared by pulsed laser deposition on two different substrates: NiFe and the recently developed NiCrW. The samples differed in sintering conditions and in buffer structures. The two best samples - with the highest critical temperature - on two different substrates were chosen for the AC loss study. The onset critical temperature of both the samples was 85 K, however zero resistance was at about 20 K, i.e., the transitions were very broad. For this reason we decided to perform loss measurements at 5 K using a SQUID magnetometer, since the high frequency equipment will not go down to this temperature.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 2002
- Accession Number
- ADA405431
Entities
People
- A. M. Campbell
- B. A. Glowacki
- M. Majoros
Organizations
- University of Cambridge