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:
The traditional differential thermal analysis (DTA) techniques are employed to evaluatethe kinetic behavior induced by the inter-particle relationships in a nano-particle θ-Al2O3 powdersystem during θ- to α- phase transformation. Discrepancies in homogeneity and inter-particledistance of the powder system may result in the diagnostic DTA profiles which can be use toevaluate the characteristics of the powder system as well as the formed α-Al2O3 particles. Based onthe acknowledgement, a quasi-homogeneous transformation shows that a duration of 90 seconds isneeded for one θ-crystallite to transform into one α-nucleus with a heating rate of 10 oC min-1 andfabrication of the high phase-pure and mono-sized α-Al2O3 powders is obtained
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.351.81.pdf
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