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A novel method for quantitative phase determination of cristobalite in ceramic cores using differential scanning calorimeter    
Yazarlar
R. Naghizadeh
Faramarz Kazemı
Dr. Öğr. Üyesi Farzin ARİANPOUR Dr. Öğr. Üyesi Farzin ARİANPOUR
Kastamonu Üniversitesi, Türkiye
R. Ghaderi
M. Haj Fathalian
M. Taheri
Hamıd Reza Rezaie
Özet
The present research aims at developing a new quantitative thermal analysis method based on differential scanning calorimeter for determination of cristobalite phase content in ceramic cores. For this purpose, various control samples with different amounts of cristobalite phase were made based on the chemical composition of silica-based ceramic cores and analyzed via differential scanning calorimetry (DSC) technique. The surface area under the α → β cristobalite transition peak in the DSC curves was calculated via numerical integral of the peaks area, and the ratio of this area to the samples weight (A/W) was calibrated by cristobalite content of the samples. Afterward, for determining the cristobalite content of some industrial samples, the DSC patterns were plotted, and the A/W ratio of these samples was determined by the same method. Then the A/W ratios of the industrial samples were fitted on the calibration line, and the cristobalite content was derived using the equation of the calibration line. The method showed good accuracy, and the error values of the estimated cristobalite content of the industrial samples were below 2 %.
Anahtar Kelimeler
Ceramic core | Cristobalite | Differential scanning calorimeter | Silica
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Dergi ISSN 1388-6150
Dergi Tarandığı Indeksler SCI
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 01-2015
Cilt No 119
Sayı 1
Sayfalar 191 / 195
Doi Numarası 10.1007/s10973-014-4086-7