DocumentCode
1123004
Title
Synthesis of 
– 
Nanocomposite Powders by Pulsed Wire Discharge
Author
Lee, Pengyuan ; Suematsu, Hisayuki ; Jiang, Weihua ; Yatsui, Kiyoshi ; Niihara, Koichi
Author_Institution
Extreme Energy-Density Res. Inst., Nagaoka Univ. of Technol.
Volume
34
Issue
4
fYear
2006
Firstpage
1190
Lastpage
1194
Abstract
A pulsed wire discharge method was used in the synthesis of zirconia-alumina nanocomposite powders by mixing zirconium plasma with aluminum plasma and cooling them together in an oxygen atmosphere. The products formed were characterized by powder X-ray diffractometry, transmission electron microscopy, and Brunauer-Emmet-Teller surface-area analysis. These powders showed a sphere morphology with less agglomeration. Specific surface area of these powders was 25-137 m2 /g depending on the oxygen pressure. Typically, this powder could be densified at 1100 degC, which is important for producing a high-toughness nanocomposite
Keywords
X-ray diffraction; alumina; ceramics; cooling; densification; nanocomposites; plasma materials processing; powders; transmission electron microscopy; zirconium compounds; 1100 degC; Al2O3-ZrO2; Brunauer-Emmet-Teller surface-area analysis; agglomeration; aluminum plasma; cooling; densification; high-toughness nanocomposite; oxygen atmosphere; powder X-ray diffractometry; pulsed wire discharge; specific surface area; sphere morphology; transmission electron microscopy; zirconia-alumina nanocomposite powder; zirconium plasma; Aluminum; Atmosphere; Cooling; Electrons; Plasma x-ray sources; Powders; Surface morphology; Wire; X-ray diffraction; Zirconium; Nanocomposite powder; plasma materials processing applications; pulsed wire discharge;
fLanguage
English
Journal_Title
Plasma Science, IEEE Transactions on
Publisher
ieee
ISSN
0093-3813
Type
jour
DOI
10.1109/TPS.2006.877512
Filename
1673505
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