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| Title: | Sintering Characteristics of Mechanically Alloyed Al–Ni–Ti Amorphous Powder Consolidated by Pressure-less, Pressure-assisted and Spark Plasma Sintering |
| Authors: | Mula, S
Ghosh, S
Shyamal, K P |
| Issue Date: | 2009 |
| Citation: | 63 National Metallurgists' Day-Annual Technical Meeting, Indian Institute of Metals, Kolkata, 16 November 2009 |
| Abstract: | The present work investigates on the possibility of development of amorphous-based nanocomposites by mechanical alloying followed by consolidation. The elemental powder blend of Al88Ni6Ti6 was subjected to high energy ball milling for 120 h in cemented carbide grinding media at a mill speed of 300 r.p.m. by means of a Fritsch Pulverisette-5 planetary ball mill to obtain a fully amorphous powder. The thermal stability of the mechanically alloyed amorphous powder was studied using a differential scanning calorimeter (STA 409C, NETZSCH, Germany) and also by high temperature X-ray diffraction in vacuum (<1 Pa), and it was found to be stable up to ~500°C. Using the information of thermal stability, an attempt was made to consolidate the powder to produce bulk Al-rich nanocomposites having densities near to the theoretical density. |
| URI: | http://hdl.handle.net/2080/1079 |
| Appears in Collections: | Conference Papers
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| mula.pdf | | 314Kb | Adobe PDF | View/Open |
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