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The addition of a surfactant at regular time intervals in the mechanical alloying process

Nazari, KA, Nouri, A and Hilditch, Timothy 2014, The addition of a surfactant at regular time intervals in the mechanical alloying process, Journal of Alloys and Compounds, vol. 615, pp. 47-55, doi: 10.1016/j.jallcom.2014.06.142.

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Title The addition of a surfactant at regular time intervals in the mechanical alloying process
Author(s) Nazari, KA
Nouri, A
Hilditch, Timothy
Journal name Journal of Alloys and Compounds
Volume number 615
Start page 47
End page 55
Total pages 32
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2014-12
ISSN 0925-8388
Keyword(s) Ball milling
Ethylene bis-stearamide
Mechanical alloying
Surfactant
Time interval
Titanium alloys
Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Chemistry
Materials Science
PROCESS-CONTROL AGENT
X-RAY-DIFFRACTION
CONSOLIDATION BEHAVIOR
TEMPERATURE
SUSPENSIONS
COMPOSITES
ALUMINUM
Summary The impact of regular additions of a surfactant (ethylene bis-stearamide; EBS) at different time intervals was investigated on the powder characteristics of a biomedical Ti-10Nb-3Mo alloy (wt.%). Ball milling was performed for 10 h on the elemental powders in four series of experiments at two rotation speeds (200 and 300 rpm). The addition of 2 wt.% total EBS at different time intervals during ball milling resulted in noticeable changes in particle size and morphology of the powders. The surfactant addition at shorter time intervals led to the formation of finer particles, a more homogenous powder distribution, a higher powder yield, and a lower contamination content in the final materials. Thermal analysis of the powders after ball milling suggested that differing decomposition rates of the surfactant were responsible for the measured powder particle changes and contamination contents. The results also indicated that the addition of surfactant during ball milling at 200 rpm caused a delay in the alloy formation, whereas ball milling at 300 rpm favored the formation of the titanium alloy.Crown Copyright © 2014 Published by Elsevier B.V. All rights reserved.
Language eng
DOI 10.1016/j.jallcom.2014.06.142
Field of Research 091207 Metals and Alloy Materials
0912 Materials Engineering
0914 Resources Engineering And Extractive Metallurgy
0204 Condensed Matter Physics
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30067720

Document type: Journal Article
Collection: School of Engineering
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Created: Tue, 25 Nov 2014, 09:52:46 EST

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