Document Detail

Enhancement in the critical current density of C-doped MgB2 wire using a polyacrylic acid dopant.
MedLine Citation:
PMID:  22629967     Owner:  NLM     Status:  In-Process    
C-doped MgB2 wires were fabricated from a polyacrylic acid (PAA) using a conventional in-situ PIT technique. The effects of the PAA content on the lattice parameter, microstructure, critical temperature (Tc) and critical current density (Jc) were examined. With increasing PAA content, the amount of MgO in the sample increased but the crystallinity, a-axis lattice parameter, and Tc of MgB2 wires decreased, indicating that the C that decomposed from PAA during heat treatment had substituted for B. All doped samples exhibited a higher Jc than the undoped sample at high magnetic field, and the Jc(B) property improved with increasing PAA content: for the 7 wt% doped sample, the Jc was approximately 3-times higher than that of the pristine sample (1.28 kA/cm2 vs. 3.43 kA/cm2) at 5 K and 6.6 T. The improved Jc(B) of the doped sample was attributed to the decreased grain size, enlarged lattice distortion and increased C doping level.
Seung Muk Lee; Soo Min Hwang; Chang Min Lee; Won Kim; Jinho Joo; Jun Hyung Lim; Chan-Joong Kim; Gye-Won Hong
Related Documents :
994747 - Modulation by ketone bodies of the rate of fatty acid synthesis in mammary gland slices...
11764407 - Efficient synthesis of pyrenylalanine.
12968877 - Solid-phase synthesis of alpha-gal epitopes: on-resin analysis of solid-phase oligosacc...
3748807 - Improved synthesis of oligodeoxyribonucleotide using 3-methoxy-4-phenoxybenzoyl group f...
21691117 - Ursodeoxycholic acid for treatment of fatty liver disease and dyslipidemia in morbidly ...
3958107 - Highly sensitive determination of free fatty acids in human serum by high-performance l...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of nanoscience and nanotechnology     Volume:  12     ISSN:  1533-4880     ISO Abbreviation:  J Nanosci Nanotechnol     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-05-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088195     Medline TA:  J Nanosci Nanotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1406-10     Citation Subset:  IM    
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, Korea.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  The effects of graphene doping on the in-field Jc of MgB2 wires.
Next Document:  Effects of reduced chemical vapor deposition environment on growth and optical characteristics of Ti...