Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/991
Title: Burned rice husk: An effective additive for enhancing the electromagnetic properties of MgB2 superconductor
Authors: Neson Varghese
Vinod, K
Shipra
Sundaresan, A
Syamaprasad, U
Keywords: Burned rice husk
Ultrafine SiO 2
MgB 2 superconductor
Issue Date: 2010
Publisher: Wiley
Citation: Journal of the American Ceramic Society 93(3):732-736; Mar 2010
Abstract: We investigated the effect of doping of burned rice husk which contains ultrafine SiO2 and highly reactive carbon, on the crystal lattice and superconducting properties of MgB2 superconductor prepared by an in situ powder in sealed tube method. XRD, TEM, and magnetic measurements confirm the substitution of carbon atoms at boron sites in the MgB2 lattice and the formation of intragrain nanoinclusions in MgB2. From J(C) (H) characteristics, doped samples show a drastic enhancement of J(C) compared with pure MgB2. The enhancement of in-field J(C) values is due to the flux pinning on lattice defects produced by C substitution and nanoscale inclusions of impurity phases.
URI: http://ir.niist.res.in:8080/jspui/handle/123456789/991
ISSN: 0002-7820
Appears in Collections:2010

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