Characterization of ultra fine alumina powder produced by wet milling
Conference
·
OSTI ID:99113
- Martinswerk GmbH, Bergheim (Switzerland)
- Ecole Polytechnique Federale de Lausanne (Switzerland)
- Institut fuer Mineralogie und Lagerstaettenlehre, Aachen (Switzerland)
Different raw alumina powders were wet milled in a ball mill and in an attrition mill. The influence of the raw material properties as well as the milling parameters on the properties of the final product was investigated by chemical analysis, XRD, surface characterization and sintering experiments. The results show the synthesis of nanoscaled powder with a specific surface area {ge} 50 m{sup 2}/g can be achieved by wet milling. In addition domains with diameters of a few nm could be detected by XRD. The sintering temperature could be lowered from 1650{degrees}C to 1424{degrees}C. The hydration of {alpha}-Al{sub 2}O{sub 3}, will also be discussed.
- OSTI ID:
- 99113
- Report Number(s):
- CONF-940911--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Preparation of powders suitable for conversion to useful .beta.-aluminas
Synthesis of mullite composites from powder mixtures of alumina, silica and zirconia
Fabrication of Al{sub 2}O{sub 3}-20 vol.% Al nanocomposite powders using high energy milling and their sinterability
Patent
·
Thu Dec 31 23:00:00 EST 1981
·
OSTI ID:864268
Synthesis of mullite composites from powder mixtures of alumina, silica and zirconia
Conference
·
Fri Dec 30 23:00:00 EST 1994
·
OSTI ID:96549
Fabrication of Al{sub 2}O{sub 3}-20 vol.% Al nanocomposite powders using high energy milling and their sinterability
Journal Article
·
Thu Mar 15 00:00:00 EDT 2012
· Materials Research Bulletin
·
OSTI ID:22212451