Mechanical property of nano-TiO2 dispersed Al65Cu20Ti15 amorphous/nanocrystalline matrix bulk composite prepared by mechanical alloying and high pressure sintering
|Debdas Roy 1, Rahul Mitra 1,2, Tadeusz Chudoba 2, Zbigniew Witczak 2, Witold Łojkowski 2, Hans-Jörg Fecht 3, Indranil Manna 1|
1. Indian Institute Of Technology,Kharagpur (IIT), Kharagpur, India
Mechanically alloyed Al65Cu20Ti15 amorphous alloy powder with 10 wt.% nano-TiO2 dispersion was consolidated by high pressure sintering (HPS) at room temperature and/or 300-450oC for about 1 min using 8 GPa uniaxial pressure. Sintering was followed by XRD and TEM. Excellent mechanical properties of 8.34 GPa hardness and 1600 MPa compressive stress were obtained in a selected sintered samples, albeit poor ductility (<1%).
Presentation: Oral at E-MRS Fall Meeting 2007, Acta Materialia Gold Medal Workshop, by Indranil Manna
See On-line Journal of E-MRS Fall Meeting 2007
Submitted: 2007-05-20 12:12 Revised: 2009-06-07 00:44