An indirect thermodynamic model developed for initial stage sintering of an alumina compacts by using porosity measurements

Basit Öğe Kaydı
dc.contributor.authorSarikaya, Y.
dc.contributor.authorOnal, M.
dc.contributor.authorAda, K.
dc.date.accessioned2020-06-25T18:06:40Z
dc.date.available2020-06-25T18:06:40Z
dc.date.issued2012
dc.departmentKırıkkale Üniversitesi
dc.descriptionOnal, Muserref/0000-0002-1540-8389
dc.description.abstractThe specific micro- and mesopore volumes (V) of alumina compacts fired between 900 and 1250 A degrees C for 2 h were determined from nitrogen adsorption/desorption data. The V value was taken as a sintering equilibrium parameter. An arbitrary sintering equilibrium constant (K (a)) was estimated for each firing temperature by assuming K (a) = (V (i) - V)/V, where V (i) is the largest value at 900 A degrees C before sintering. Also, an arbitrary Gibbs energy (Delta G (a) A degrees) of sintering was calculated for each temperature using the K (a) value. The graph of ln K (a) versus 1/T and Delta G (a) A degrees versus T were plotted, and the real enthalpy (Delta HA degrees) and the real entropy (Delta SA degrees) of sintering were calculated from the slopes of the obtained straight lines, respectively. On the contrary, real Delta GA degrees and K values were calculated using the real Delta HA degrees and Delta SA degrees values in the Delta GA degrees = -RT lnK = 165814 - 124.7T relation in SI units.en_US
dc.description.sponsorshipScientific and Technical Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [TUBITAK-106T056]en_US
dc.description.sponsorshipThe authors are grateful to the Scientific and Technical Research Council of Turkey for supporting this study under the project TUBITAK-106T056.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1007/s10973-011-1922-x
dc.identifier.endpage423en_US
dc.identifier.issn1388-6150
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-84872907371
dc.identifier.scopusqualityQ1
dc.identifier.startpage419en_US
dc.identifier.urihttps://doi.org/10.1007/s10973-011-1922-x
dc.identifier.urihttps://hdl.handle.net/20.500.12587/5307
dc.identifier.volume107en_US
dc.identifier.wosWOS:000299376600001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringeren_US
dc.relation.ispartofJournal Of Thermal Analysis And Calorimetry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdsorptionen_US
dc.subjectAluminaen_US
dc.subjectPorosityen_US
dc.subjectSintering thermodynamicsen_US
dc.titleAn indirect thermodynamic model developed for initial stage sintering of an alumina compacts by using porosity measurementsen_US
dc.typeArticle

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
[ X ]
İsim:
An indirect thermodynamic model developed for initial stage sintering of an alumina compacts by using porosity measurements.pdf
Boyut:
354.36 KB
Biçim:
Adobe Portable Document Format
Açıklama:
Tam Metin/Full Text
İndir

Koleksiyon

WOS İndeksli Yayınlar Koleksiyonu
Makale Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu