Effect of TiO2 doping on microstructural properties of Al2O3-based single crystal ceramics
Yükleniyor...
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Korean Assoc Crystal Growth, Inc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Powders of Al2O3-TiO2 containing, 48 and 40% TiO2 by weight were formed into single crystals with a Verneuil furnace at 2088 K. Raman spectroscopy was used to determine the phase composition of the samples solidified from the Al2O3-TiO2 powder. The resulting beta-Al2TiO5-Al6Ti2O13, beta-Al2TiO5-Al2O3 single crystals were probed with micro hardness assays, scratch test analyses, atomic force microscopy (AFM), scanning electron microscopy (SEM), thermal expansion and four-point bending tests. It was observed that the alumina-tialite single crystal retained a composition of Al2O3-TiO2 containing 60% Al2O3 by weight and displayed optimum properties.
Açıklama
Anahtar Kelimeler
Alumina, Alumina-tialite, Single crystal, Microstructure
Kaynak
Journal of Ceramic Processing Research
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
12
Sayı
1
