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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/1078

Title: Solid State Synthesis of Al-based Al-Si-Ni Amorphous and/or Nanostructured Materials
Authors: Mula, S
Sahani, P
Mohakud, P S
Issue Date: 2009
Citation: 63 National Metallurgists' Day- Annual Technical Meeting, Indian Institute of Metals, Kolkata, 16 November, 2009
Abstract: An attempt was made to synthesize Al-alloy based Al-Si-Ni amorphous and/or nanostructures by mechanical alloying (MA). The Al-Si-Ni alloys containing 14 to 25 % Si and 8 to 25 % Ni was known to generate amorphous phase by rapid solidification processing. Elemental powders of Al,Si and Ni (purity Ni ≥ 99.8%, Al ≥ 99.7%, Si ≥ 98.5%) having an average particle size <70 μm were blended to obtain nominal composition of Al75Si15Ni10, Al70Si20Ni10, Al65Si25Ni10, Al70Si15Ni15, Al65Si20Ni15, Al78Si14Ni8 and Al50Si25Ni25. Mechanical alloying was carried out in a Fritsch high energy planetary ball mill using Cr-steel grinding media at 300 r.p.m. up to 50 h.Toluene was used as the process control agent. The ball to powder weight ratio was maintained at 10:1. The microstructural characterization of the milled powder was followed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The particle size distribution of the 50 h milled samples was...
URI: http://hdl.handle.net/2080/1078
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