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Structural Refinement in Al-MoO3 Nanocomposites Prepared by Arrested Reactive Milling

Published online by Cambridge University Press:  26 February 2011

Swati Umbrajkar ,
Mirko Schoenitz  and
Edward L Dreizin
Swati Umbrajkar
Affiliation:
smu2@njit.edu, New Jersey Institute Of Technology, Mechanical Engineering, 10, Cross St, Apt # 4, Belleville, NJ, 07109, United States, 973-704-8582
Mirko Schoenitz
Affiliation:
mirko.schoenitz@njit.edu, New Jersey Institute Of Technology, Mechanical Engineering, United States
Edward L Dreizin
Affiliation:
dreyzin@njit.edu, New Jersey Institute Of Technology, Mechanical Engineering
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Abstract

Al-MoO3 nanocomposites were synthesized based on arrested reactive milling. Altering the milling parameters leads to different scales of refinement in the structure of the reactive nanocomposites. The objective of this work is to determine the range in which the degree of structural refinement can be changed in a controlled manner. The milling intensity was controlled by using different milling media along with varying amounts of process control agent (PCA). XRD, SEM, DSC and wire-ignition tests were performed to analyze the Al-MoO3 nanocomposites. Results indicate that there is a decrease in the crystallite size with increase in the milling intensity. However increase in milling intensity also stimulates the undesired reaction between Al and MoO3. Milling conditions resulting in the highest structural refinement and lowest ignition temperatures were identified.

Keywords

energetic materialreactive ball millingnanoscale
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 896: Symposium H – Multifunctional Energetic Materials , 2005 , 0896-H02-04
Copyright
Copyright © Materials Research Society 2006

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References

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