ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The addition of zirconia to alumina can improve the chemical properties, mechanicalstability, acidity and surface area of alumina. The aim of this work is to evaluate the influence of0.005 moles of zirconia addition to the structure and morphology of alumina powders bycombustion reaction. The compositions were called AP (alpha-Al2O3) and AZ (Zr0.005Al1.995O3) andwere prepared by using a silica container with direct heating on a hot plate at 480oC until selfignition.The powders were characterized by X-ray diffraction and nitrogen adsorption by BETanalysis. The composition AZ showed high surface area (47 m2/g) and small crystallite size (60nm). The alpha-alumina AP showed a wide agglomerates distribution with small agglomerates sizewhen compared with AZ composition
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/19/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.591-593.750.pdf