Investigation on Sintering Behaviour of Sol Gel Coated Seydişehir Alumina with TiO2
Abstract
In this study, we report the sinterability of Seydişehir α-Al2O3 by coating TiO2 colloidal particles by sol-gel method. In this context, efforts have been made to decrease the amount of impurities with washing process, to stabilize transformation with calcination and to reduce grain size by jet-mill grinding. It is aimed to increase the density of Al2O3 by coating TiO2 by sol-gel method. The ceramic powders were dry-pressed, they were sintered at 15800C for different hours(1h, 3h and 6h). The role of TiO2 content and sintering time on the microstructural properties and density of final products were investigated.
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References
- [1] Yong, Y., You, W., Zheng, W., Gang L. and Wei, T. (2008). Preparation and sintering behaviour of nanostructured alumina/titania composite powders modified with nano-dopants. Mater. Sci. Eng. A., 490, 457-464.
- [2] Erten, R., Emrullahoğlu, C.B., Yazıcı, Z.O. and Emrullahoğlu, Ö.F. (2004). An investigation on injection moulding of Seydişehir alumina. Key Eng. Mater., Vols. 264-268, 2523-2526.
- [3] Palacı, Y.(2001). Alüminanın özelliklerine, şekillendirme yönteminin, katkılarının ve sinterleme sıcaklığının etkisi. Doktora Tezi, İstanbul Teknik Üniversitesi, Türkiye, p. 8-10.
- [4] Engürlü, S., Taşlıçukur Öztürk, Z. and Kuşkonmaz, N. (2017). Investigation of the production of β-Al2O3 solid electrolyte from Seydişehir α-Al2O3. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt 21 (3),816-819.
- [5] Jayasankar, M., Ananthakumar, S., Mukundan, P., Wunderlich, W. and Warrier, K.G.K.(2008). Al2O3 @ TiO2-A simple sol–gel strategy to the synthesis of low temperature sintered alumina–aluminium titanate composites through a core–shell approach. J. Sol. St. Chem., 181,2748–2754.
- [6] Avcı, G.G., Mısırlı, Z. and Günay, V. (1996). Processing and characterization of microfiltration supports prepared from alumina powders. Cer. Inter., 22, 23-26.
- [7] Ahmed, M.A., Abdel-Messih, M.F. (2011). Structural and nano-composite features of TiO2–Al2O3 powders prepared by sol–gel method. J. Alloys Comp., 509,2154–2159.
- [8] Arıer, U.Ö.A. and Tepehan, F.Z. (2013). Influence of Al2O3:TiO2 ratio on the structural and optical properties of TiO2–Al2O3 nano-composite films produced by sol gel method. Comp.: Part B., 58, 147–151.
Details
Primary Language
English
Subjects
Engineering
Journal Section
Research Article
Authors
Selin Engürlü
This is me
0000-0003-2456-9050
Türkiye
Nilgün Kuşkonmaz
This is me
0000-0001-7322-3107
Türkiye
Publication Date
June 30, 2020
Submission Date
October 10, 2019
Acceptance Date
February 19, 2020
Published in Issue
Year 2020 Volume: 32 Number: 2