NDLI: Evaluation of the Effect of Area Factors on the Grain Connectivity of <emphasis emphasistype=italic>Ex-Situ</emphasis> <formula formulatype=inline><tex Notation=TeX>${rm MgB}

Content Provider	IEEE Xplore Digital Library
Author	Nakane, T. Kumakura, H.
Copyright Year	2002
Abstract	The J _c-B performance of ex-situ MgB₂ tape is thought to depend on the grain-boundary coupling between the grains of an ex-situ MgB₂ core and between particles within a grain. This work investigates the influence of these area-dependent factors on the J _c-B performance and the measured grain connectivity of ex-situ MgB₂ cores. While the influence of area factors on the J _c - B performance of ex-situ MgB₂ tapes is small, the effect on measured grain connectivity is larger. Therefore, the relationship between the J _c - B performance of ex-situ MgB₂ tape and grain connectivity should carefully take this phenomenon into account. Moreover, this study reveals that different ways to evaluate the grain connectivity have advantages and disadvantages for detecting the influence of the area factors. We propose an evaluation guideline for the grain connectivity of ex-situ MgB₂ cores in order to analyse the reasons for area-dependent changes. We believe that this work will improve our understanding of grain connectivity and allow it to be used as feedback in investigations of the fabrication of ex-situ MgB₂ tape with high J _c - B performance.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	2793
Ending Page	2796
Page Count	4
File Size	370896
File Format	PDF
ISSN	10518223
Volume Number	19
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting materials Impurities Conducting materials Superconducting films Conductivity Area measurement Fabrication Magnetic materials Powders Materials science and technology impurity addition Area factors conductive capacity ex-situ ${\rm MgB}_{2}$ tape grain connectivity
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Improvement in the $J_{rm c}-B$ Characteristics of Ex-Situ ${rm MgB}_{2}$ Tape With SiC Addition

Fabrication of Ex-Situ ${hbox{MgB}}_{2}/{hbox{Al}}$ Tapes and the Effects of In and SiC Addition

Improved Critical Current Densities in Ex-Situ Processed ${rm MgB}_{2-x}{rm C}_{x}$ Tapes Using Powders Treated in Chemical Solutions

Fabrication of C Doped ${hbox {MgB}}_{2}$ Wire Using a Mixture of In-situ and Ex-situ Powders

Superconducting Properties of Aromatic Hydrocarbon-Added Powder-in-Tube ${rm MgB}_{2}/{rm Fe}$ Tapes

Fabrication of In-Situ ${rm MgB}_{2}$ Films Using Evaporation and Sputtering Simultaneous Deposition Technique

Formation of ${rm MgB}_{2}$ Layer Through the Interface Diffusion Reaction in an ${rm Fe-Mg} {rm alloy}$ / $({rm B}+({rm SiC}))$ Composite Tape

Growth of ${rm MgB}_{2}$ Thin Films In Situ by RF Magnetron Sputtering With a Pocket Heater

Microstructure of the ${rm MgB}_{2}$ Wires Resulting by the Infiltration Process

Evaluation of the Effect of Area Factors on the Grain Connectivity of Ex-Situ ${rm MgB}_{2}$ Cores

Similar Documents

Improvement in the $J_{rm c}-B$ Characteristics of Ex-Situ ${rm MgB}_{2}$ Tape With SiC Addition

Fabrication of Ex-Situ ${hbox{MgB}}_{2}/{hbox{Al}}$ Tapes and the Effects of In and SiC Addition

Improved Critical Current Densities in Ex-Situ Processed ${rm MgB}_{2-x}{rm C}_{x}$ Tapes Using Powders Treated in Chemical Solutions

Fabrication of C Doped ${hbox {MgB}}_{2}$ Wire Using a Mixture of In-situ and Ex-situ Powders

Superconducting Properties of Aromatic Hydrocarbon-Added Powder-in-Tube ${rm MgB}_{2}/{rm Fe}$ Tapes

Fabrication of In-Situ ${rm MgB}_{2}$ Films Using Evaporation and Sputtering Simultaneous Deposition Technique

Formation of ${rm MgB}_{2}$ Layer Through the Interface Diffusion Reaction in an ${rm Fe-Mg} {rm alloy}$ / $({rm B}+({rm SiC}))$ Composite Tape

Growth of ${rm MgB}_{2}$ Thin Films In Situ by RF Magnetron Sputtering With a Pocket Heater

Microstructure of the ${rm MgB}_{2}$ Wires Resulting by the Infiltration Process

Evaluation of the Effect of Area Factors on the Grain Connectivity of Ex-Situ ${rm MgB}_{2}$ Cores