ISSN:
1013-9826
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:
Using NH4HCO3 solution as precipitant, the ultrafine 3Y-ZrO2/Al2O3 precursors were preparedby the liquid-phase precipitation method. The well-dispersible ZrO2/Al2O3 composite nanopowders withparticle size 10nm were obtained by calcining the precursor at 1000°C. The XRD patterns show noγ-Al2O3 and θ-Al2O3 formed during calcination. The powders have excellent sinterability and the relativedensity of specimen is up to 99% after sintering the green compacts at 1550°C. Microstructural analysis ofthe sintered bodies reveals the uniform distribution of the zirconia grains in the alumina matrix
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1137.pdf