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Journal
2008 | 6 | 3 | 482-487
Article title

Preparation and characterization of alumina-zirconia composite material with different acid ratios by the sol-gel method

Content
Title variants
Languages of publication
EN
Abstracts
EN
Alumina-zirconia composite materials were produced with different acid ratios by the sol-gel method using aluminum isopropoxide and zirconium chloride. The composites were produced by changing acid/alkoxside ratio in alumina. The composite materials were calcinated at 600°C, 900°C and 1300°C. The effects of acid concentration and calcination temperature on the surface area and pore radius were determined from the nitrogen adsorption isotherm at 77 K. The density of the composites was also measured. The minimum density of produced material was recorded as 1.35 g cm−3 at an acid/alkoxside ratio of 0.2. The highest specific surface area and pore diameter of the lightest material are 191.86 m2 g−1 and 18.4 Ǻ, respectively. Although pore diameter and specific surface area are not changed at any of the experimental temperatures which were tested by decreasing acid/alkoxside ratio, the density is slightly increased. However, it was observed that the calcination temperature significantly affects the surface area and density of the material. [...]
Publisher
Journal
Year
Volume
6
Issue
3
Pages
482-487
Physical description
Dates
published
1 - 9 - 2008
online
11 - 8 - 2008
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-008-0047-y
Identifiers
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