Advanced Powder Technology, ( ISI ), Volume (329), No (2), Year (2018-2) , Pages (95-106)

Title : ( In-situ synthesis and characterization of nano-structured NiAl-Al2O3 composite during high energy ball milling )

Authors: Maryam Beyhaghi , Jalil Vahdati Khaki , , Ali Reza Kiani Rashid , Mehrdad Kashefi Torbati , ,

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Abstract

In this work, synthesis of NiAl–Al2O3 nanocomposite powders via the mechanosynthesis route and by using Ni, NiO and Al is investigated. Ignition of the reaction inside the ball-mill vial happens after 110min; NiO is totally finished and NiAl and Al2O3 as product phases are formed. After 10 h of ball milling, raw materials are totally used in the reaction and only product phases exist in the vial. By continuing the ballmilling process to 60 h, better mixing of the synthesized phases and decrement in their crystallite sizes plus particle size are observed. Crystallite sizes of the product phases are in the nanometer range in all ball milling times. Crystallite sizes of NiAl and Al2O3 after 10 h are around 11 nmand 19 nmrespectively, and these are reduced to around 8 nmfor both phases after 60 h of ball milling.

Keywords

, Composite, Nanostructured, Mechanosynthesis, Ball mill, NiAl, Al2O3
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@article{paperid:1067926,
author = {Beyhaghi, Maryam and Vahdati Khaki, Jalil and and Kiani Rashid, Ali Reza and Kashefi Torbati, Mehrdad and },
title = {In-situ synthesis and characterization of nano-structured NiAl-Al2O3 composite during high energy ball milling},
journal = {Advanced Powder Technology},
year = {2018},
volume = {329},
number = {2},
month = {February},
issn = {0921-8831},
pages = {95--106},
numpages = {11},
keywords = {Composite; Nanostructured; Mechanosynthesis; Ball mill; NiAl; Al2O3},
}

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%0 Journal Article
%T In-situ synthesis and characterization of nano-structured NiAl-Al2O3 composite during high energy ball milling
%A Beyhaghi, Maryam
%A Vahdati Khaki, Jalil
%A
%A Kiani Rashid, Ali Reza
%A Kashefi Torbati, Mehrdad
%A
%J Advanced Powder Technology
%@ 0921-8831
%D 2018

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