Digitala Vetenskapliga Arkivet

Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Dynamic Thermal Diffusivity Measurements - A Tool for Studying Gas-Solid Reactions
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap.
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap.
2011 (engelsk)Inngår i: DIFFUSION IN SOLIDS AND LIQUIDS VI, PTS 1 AND 2, 2011, s. 217-222Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

In the present work, the thermal diffusivity measurements of uniaxially cold pressed NiWO(4) has been carried out. The measurements were performed isothermally at temperatures between 973 and 1273 K under H(2) gas using the laser flash technique. The experimental thermal diffusivity values were found to increase with the reduction progress as well as with increasing temperature. The calculated activation energy was found to be higher than that for chemically controlled reaction. The difference has been attributed to factors like agglomeration of the product as well as sintering of the precursor along with the chemical reaction. In order to sort out the sintering effect on the thermal diffusivity values, complementary experiments have been done on pressed NiWO(4) and Ni-W, produced by the reduction of NiWO(4) at 1123K, under Argon gas. The porosity change and its effect on thermal diffusivity values have been studied.

sted, utgiver, år, opplag, sider
2011. s. 217-222
Serie
Defect and Diffusion Forum, ISSN 1012-0386 ; 312-315
Emneord [en]
Thermal diffusivity, gas solid reactions, reduction by hydrogen, NiWO(4) and laser flash
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-53410DOI: 10.4028/www.scientific.net/DDF.312-315.217ISI: 000297606300038Scopus ID: 2-s2.0-79955835015OAI: oai:DiVA.org:kth-53410DiVA, id: diva2:470147
Konferanse
6th International Conference on Diffusion in Solids and Liquids JUL 05-07, 2010 Paris, FRANCE
Merknad
QC 20111228Tilgjengelig fra: 2011-12-28 Laget: 2011-12-28 Sist oppdatert: 2011-12-28bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Søk i DiVA

Av forfatter/redaktør
Ahmed, Hesham M.Seetharaman, Seshadri
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 377 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf