Processing and characterisation of sol-gel glasses and powders in the system TeO2-TiO2

Hdl Handle:
http://hdl.handle.net/10149/98315
Title:
Processing and characterisation of sol-gel glasses and powders in the system TeO2-TiO2
Authors:
Hodgson, S. N. B. (Simon); Weng, L. T. (Luqian)
Affiliation:
Loughborough University. Institute of Polymer Technology and Materials Engineering.
Citation:
Hodgson, S. N. B. and Weng, L. Q. (2002) 'Processing and characterisation of sol-gel glasses and powders in the system TeO2-TiO2', Journal of Materials Science, 37 (14), pp.3059-3066.
Publisher:
Springer Verlag
Journal:
Journal of Materials Science
Issue Date:
15-Jul-2002
URI:
http://hdl.handle.net/10149/98315
DOI:
10.1023/A:1016093719807
Abstract:
Sol-gel processing routes have been developed for the production of thin films and powders in the system TeO2-TiO2 from tellurium and titanium alkoxides. The structure and properties of the resultant materials have been characterized as a function of heat treatment temperature. Pure sol-gel derived TeO2 thin films are difficult to prepare with good optical transparency due to the presence of organic impurities and/or a highly dispersed metallic tellurium phase when heated at temperatures up to approximately 340°C, with crystallization to α-TeO2 occurring when the heat treatment temperature is further increased. Additions of TiO2 were found to retard the crystallisation of the α-TeO2 but promote the formation of other TiO2 or TiTe3O8 phases. However, an optimum composition in the range 0.9TeO2 0.1TiO2 was identified, which allows optically transparent thin films to be prepared with high refractive index and offers the potential for practical device manufacture.
Type:
Article
Language:
en
Keywords:
addition reactions; crystal structure; crystallization; film preparation; glass; heat treatment; phase composition; powders; Tellurium compounds; thermal effects; titanium dioxide; transparency
ISSN:
0022-2461; 1573-4803
Rights:
Author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 10/05/2010]
Citation Count:
3 [Scopus, 10/05/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorHodgson, S. N. B. (Simon)en
dc.contributor.authorWeng, L. T. (Luqian)en
dc.date.accessioned2010-05-10T12:57:54Z-
dc.date.available2010-05-10T12:57:54Z-
dc.date.issued2002-07-15-
dc.identifier.citationJournal of Materials Science; 37(14):3059-3066en
dc.identifier.issn0022-2461-
dc.identifier.issn1573-4803-
dc.identifier.doi10.1023/A:1016093719807-
dc.identifier.urihttp://hdl.handle.net/10149/98315-
dc.description.abstractSol-gel processing routes have been developed for the production of thin films and powders in the system TeO2-TiO2 from tellurium and titanium alkoxides. The structure and properties of the resultant materials have been characterized as a function of heat treatment temperature. Pure sol-gel derived TeO2 thin films are difficult to prepare with good optical transparency due to the presence of organic impurities and/or a highly dispersed metallic tellurium phase when heated at temperatures up to approximately 340°C, with crystallization to α-TeO2 occurring when the heat treatment temperature is further increased. Additions of TiO2 were found to retard the crystallisation of the α-TeO2 but promote the formation of other TiO2 or TiTe3O8 phases. However, an optimum composition in the range 0.9TeO2 0.1TiO2 was identified, which allows optically transparent thin films to be prepared with high refractive index and offers the potential for practical device manufacture.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 10/05/2010]en
dc.subjectaddition reactionsen
dc.subjectcrystal structureen
dc.subjectcrystallizationen
dc.subjectfilm preparationen
dc.subjectglassen
dc.subjectheat treatmenten
dc.subjectphase compositionen
dc.subjectpowdersen
dc.subjectTellurium compoundsen
dc.subjectthermal effectsen
dc.subjecttitanium dioxideen
dc.subjecttransparencyen
dc.titleProcessing and characterisation of sol-gel glasses and powders in the system TeO2-TiO2en
dc.typeArticleen
dc.contributor.departmentLoughborough University. Institute of Polymer Technology and Materials Engineering.en
dc.identifier.journalJournal of Materials Scienceen
ref.citationcount3 [Scopus, 10/05/2010]en
or.citation.harvardHodgson, S. N. B. and Weng, L. Q. (2002) 'Processing and characterisation of sol-gel glasses and powders in the system TeO2-TiO2', Journal of Materials Science, 37 (14), pp.3059-3066.-
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