Effect of Gas Atmosphere on Carbothermal Reduction and Nitridation of Titanium Dioxide
Identifieur interne : 000D43 ( Main/Exploration ); précédent : 000D42; suivant : 000D44Effect of Gas Atmosphere on Carbothermal Reduction and Nitridation of Titanium Dioxide
Auteurs : Sheikh A. Rezan [Australie, Malaisie] ; Guangqing Zhang [Australie] ; Oleg Ostrovski [Australie]Source :
- Metallurgical and Materials Transactions B [ 1073-5615 ] ; 2012-02-01.
Abstract
Abstract: This article examined the reduction/nitridation of rutile in the He-N2, Ar-N2, and He (Ar)-H2-N2 gas mixtures, as well as pure nitrogen, in the temperature-programmed and isothermal experiments in a fixed-bed reactor. The extents of reduction and nitridation were determined from the off gas composition and LECO analysis. The off-gas composition was monitored using the infrared sensor (CO, CO2, and CH4) and dew point analyzer (H2O). The phase composition of the reduced samples was analyzed using X-ray diffraction (XRD). The temperature and gas composition had a strong effect on the rutile reduction. The reduction was the fastest in the H2-N2 gas mixture, followed by a reduction in nitrogen; the rate of reduction/nitridation in the He-N2 gas mixture was marginally higher than in the Ar-N2 gas. The rate of titania reduction/nitridation in the He (Ar)-H2-N2 gas increased with the replacement of He (Ar) with hydrogen. The article also discusses the mechanisms of reduction/nitridation in different gas atmospheres.
Url:
DOI: 10.1007/s11663-011-9574-6
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000506
- to stream Istex, to step Curation: 000506
- to stream Istex, to step Checkpoint: 000164
- to stream Main, to step Merge: 000D48
- to stream Main, to step Curation: 000D43
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Effect of Gas Atmosphere on Carbothermal Reduction and Nitridation of Titanium Dioxide</title>
<author><name sortKey="Rezan, Sheikh A" sort="Rezan, Sheikh A" uniqKey="Rezan S" first="Sheikh A." last="Rezan">Sheikh A. Rezan</name>
</author>
<author><name sortKey="Zhang, Guangqing" sort="Zhang, Guangqing" uniqKey="Zhang G" first="Guangqing" last="Zhang">Guangqing Zhang</name>
</author>
<author><name sortKey="Ostrovski, Oleg" sort="Ostrovski, Oleg" uniqKey="Ostrovski O" first="Oleg" last="Ostrovski">Oleg Ostrovski</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:F23FADA37077F401195041C602486CCAC84CA6C7</idno>
<date when="2011" year="2011">2011</date>
<idno type="doi">10.1007/s11663-011-9574-6</idno>
<idno type="url">https://api.istex.fr/ark:/67375/VQC-2CG2H1NH-5/fulltext.pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000506</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000506</idno>
<idno type="wicri:Area/Istex/Curation">000506</idno>
<idno type="wicri:Area/Istex/Checkpoint">000164</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000164</idno>
<idno type="wicri:doubleKey">1073-5615:2011:Rezan S:effect:of:gas</idno>
<idno type="wicri:Area/Main/Merge">000D48</idno>
<idno type="wicri:Area/Main/Curation">000D43</idno>
<idno type="wicri:Area/Main/Exploration">000D43</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Effect of Gas Atmosphere on Carbothermal Reduction and Nitridation of Titanium Dioxide</title>
<author><name sortKey="Rezan, Sheikh A" sort="Rezan, Sheikh A" uniqKey="Rezan S" first="Sheikh A." last="Rezan">Sheikh A. Rezan</name>
<affiliation wicri:level="1"><country xml:lang="fr">Australie</country>
<wicri:regionArea>School of Materials Science and Engineering, the University of New South Wales, 2052, Sydney, NSW</wicri:regionArea>
<wicri:noRegion>NSW</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Malaisie</country>
<wicri:regionArea>School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Seberang Perai Selatan, 14300, Penang</wicri:regionArea>
<wicri:noRegion>Penang</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Zhang, Guangqing" sort="Zhang, Guangqing" uniqKey="Zhang G" first="Guangqing" last="Zhang">Guangqing Zhang</name>
<affiliation wicri:level="1"><country xml:lang="fr">Australie</country>
<wicri:regionArea>School of Materials Science and Engineering, the University of New South Wales, 2052, Sydney, NSW</wicri:regionArea>
<wicri:noRegion>NSW</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Ostrovski, Oleg" sort="Ostrovski, Oleg" uniqKey="Ostrovski O" first="Oleg" last="Ostrovski">Oleg Ostrovski</name>
<affiliation wicri:level="1"><country xml:lang="fr">Australie</country>
<wicri:regionArea>School of Materials Science and Engineering, the University of New South Wales, 2052, Sydney, NSW</wicri:regionArea>
<wicri:noRegion>NSW</wicri:noRegion>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Metallurgical and Materials Transactions B</title>
<title level="j" type="abbrev">Metall and Materi Trans B</title>
<idno type="ISSN">1073-5615</idno>
<idno type="eISSN">1543-1916</idno>
<imprint><publisher>Springer US; http://www.springer-ny.com</publisher>
<pubPlace>Boston</pubPlace>
<date type="published" when="2012-02-01">2012-02-01</date>
<biblScope unit="volume">43</biblScope>
<biblScope unit="issue">1</biblScope>
<biblScope unit="page" from="73">73</biblScope>
<biblScope unit="page" to="81">81</biblScope>
</imprint>
<idno type="ISSN">1073-5615</idno>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">1073-5615</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass></textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Abstract: This article examined the reduction/nitridation of rutile in the He-N2, Ar-N2, and He (Ar)-H2-N2 gas mixtures, as well as pure nitrogen, in the temperature-programmed and isothermal experiments in a fixed-bed reactor. The extents of reduction and nitridation were determined from the off gas composition and LECO analysis. The off-gas composition was monitored using the infrared sensor (CO, CO2, and CH4) and dew point analyzer (H2O). The phase composition of the reduced samples was analyzed using X-ray diffraction (XRD). The temperature and gas composition had a strong effect on the rutile reduction. The reduction was the fastest in the H2-N2 gas mixture, followed by a reduction in nitrogen; the rate of reduction/nitridation in the He-N2 gas mixture was marginally higher than in the Ar-N2 gas. The rate of titania reduction/nitridation in the He (Ar)-H2-N2 gas increased with the replacement of He (Ar) with hydrogen. The article also discusses the mechanisms of reduction/nitridation in different gas atmospheres.</div>
</front>
</TEI>
<affiliations><list><country><li>Australie</li>
<li>Malaisie</li>
</country>
</list>
<tree><country name="Australie"><noRegion><name sortKey="Rezan, Sheikh A" sort="Rezan, Sheikh A" uniqKey="Rezan S" first="Sheikh A." last="Rezan">Sheikh A. Rezan</name>
</noRegion>
<name sortKey="Ostrovski, Oleg" sort="Ostrovski, Oleg" uniqKey="Ostrovski O" first="Oleg" last="Ostrovski">Oleg Ostrovski</name>
<name sortKey="Zhang, Guangqing" sort="Zhang, Guangqing" uniqKey="Zhang G" first="Guangqing" last="Zhang">Guangqing Zhang</name>
<name sortKey="Zhang, Guangqing" sort="Zhang, Guangqing" uniqKey="Zhang G" first="Guangqing" last="Zhang">Guangqing Zhang</name>
</country>
<country name="Malaisie"><noRegion><name sortKey="Rezan, Sheikh A" sort="Rezan, Sheikh A" uniqKey="Rezan S" first="Sheikh A." last="Rezan">Sheikh A. Rezan</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Sante/explor/H2N2V1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000D43 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000D43 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Sante |area= H2N2V1 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:F23FADA37077F401195041C602486CCAC84CA6C7 |texte= Effect of Gas Atmosphere on Carbothermal Reduction and Nitridation of Titanium Dioxide }}
This area was generated with Dilib version V0.6.33. |