Thermal decomposition and electrical conductivity of oxide cathode emission materials

Hdl Handle:
http://hdl.handle.net/10149/98435
Title:
Thermal decomposition and electrical conductivity of oxide cathode emission materials
Authors:
Al-Ajili, A. N. H. (Adwan); Ray, A. K. (Asim Kumar); Travis, J. R. (Jon); Hodgson, S. N. B. (Simon); Baker, A. P.; Goodhand, C. J.
Affiliation:
Loughborough University. Institute of Polymer Technology and Materials Engineering.
Citation:
Al-Ajili, A. N. H. et. al. (2000) 'Thermal decomposition and electrical conductivity of oxide cathode emission materials', Journal of Materials Science: Materials in Electronics, 11 (6), pp.489-495.
Publisher:
Springer Verlag
Journal:
Journal of Materials Science: Materials in Electronics
Issue Date:
Aug-2000
URI:
http://hdl.handle.net/10149/98435
DOI:
10.1023/A:1008916501674
Abstract:
Thermal decomposition and electrical conductivity of oxide cathode emission materials used for cathode ray tubes (CRTs) have been studied under different heat treatment conditions for commercial sprayed cathode systems based on barium-strontium carbonate precursors. Conversion of the carbonate precursor commenced at temperatures above approximately 700 K in vacuum, evidenced by increases in conductivity, however, the rate of the conversion reaction increased dramatically as the temperature was increased. The corresponding chemical and microstructural changes have also been investigated by thermo-gravimetric analysis (TGA) and scanning electron microscopy (SEM), with multiple decomposition stages identified corresponding to the conversion of the carbonate precursor and separate activation steps associated with the reaction of barium oxide with the Mg and Al activating agents in the nickel cathode substrate.
Type:
Article
Language:
en
Keywords:
carbonates; crystal microstructure; electric conductivity; electron emission; heat treatment; oxides; pyrolysis; scanning electron microscopy; substrates; thermal effects; thermogravimetric analysis
ISSN:
0957-4522; 1573-482X
Rights:
Author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 11/05/2010]
Citation Count:
10 [Scopus, 11/05/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorAl-Ajili, A. N. H. (Adwan)en
dc.contributor.authorRay, A. K. (Asim Kumar)en
dc.contributor.authorTravis, J. R. (Jon)en
dc.contributor.authorHodgson, S. N. B. (Simon)en
dc.contributor.authorBaker, A. P.en
dc.contributor.authorGoodhand, C. J.en
dc.date.accessioned2010-05-11T08:32:50Z-
dc.date.available2010-05-11T08:32:50Z-
dc.date.issued2000-08-
dc.identifier.citationJournal of Materials Science: Materials in Electronics; 11(6):489-495en
dc.identifier.issn0957-4522-
dc.identifier.issn1573-482X-
dc.identifier.doi10.1023/A:1008916501674-
dc.identifier.urihttp://hdl.handle.net/10149/98435-
dc.description.abstractThermal decomposition and electrical conductivity of oxide cathode emission materials used for cathode ray tubes (CRTs) have been studied under different heat treatment conditions for commercial sprayed cathode systems based on barium-strontium carbonate precursors. Conversion of the carbonate precursor commenced at temperatures above approximately 700 K in vacuum, evidenced by increases in conductivity, however, the rate of the conversion reaction increased dramatically as the temperature was increased. The corresponding chemical and microstructural changes have also been investigated by thermo-gravimetric analysis (TGA) and scanning electron microscopy (SEM), with multiple decomposition stages identified corresponding to the conversion of the carbonate precursor and separate activation steps associated with the reaction of barium oxide with the Mg and Al activating agents in the nickel cathode substrate.en
dc.language.isoenen
dc.publisherSpringer Verlagen
dc.rightsAuthor can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 11/05/2010]en
dc.subjectcarbonatesen
dc.subjectcrystal microstructureen
dc.subjectelectric conductivityen
dc.subjectelectron emissionen
dc.subjectheat treatmenten
dc.subjectoxidesen
dc.subjectpyrolysisen
dc.subjectscanning electron microscopyen
dc.subjectsubstratesen
dc.subjectthermal effectsen
dc.subjectthermogravimetric analysisen
dc.titleThermal decomposition and electrical conductivity of oxide cathode emission materialsen
dc.typeArticleen
dc.contributor.departmentLoughborough University. Institute of Polymer Technology and Materials Engineering.en
dc.identifier.journalJournal of Materials Science: Materials in Electronicsen
ref.citationcount10 [Scopus, 11/05/2010]en
or.citation.harvardAl-Ajili, A. N. H. et. al. (2000) 'Thermal decomposition and electrical conductivity of oxide cathode emission materials', Journal of Materials Science: Materials in Electronics, 11 (6), pp.489-495.-
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