Synthesis of α-Al2O3 based foams with improved properties as catalyst carriers
Autor: | Nikolić, V., Kamberović, Ž, Andić, Z., Marija Korac, Sokić, M. |
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Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Materiali in Tehnologije Scopus-Elsevier |
Popis: | This paper explores the possibility of synthesising catalyst supports with improved properties. Alumina foams were produced with the polymer replication technique. Representative high- and low-temperature sintering ceramics were selected. Suitable suspension amounts, the clay addition and sintering temperature were determined. A lower sintering temperature was used for an economic enhancement of the process. The sintering was conducted at the temperatures from 1573 K to 1773 K for 60 min. A comparative analysis of the studied systems shows that the best compressive strength of 6.2 MPa was achieved with the system based on the alpha-Al2O3-25 clay (mass fractions, w/%), polyester foam with 10 PPI, sintered at 1673 K. |
Databáze: | OpenAIRE |
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