| Summary: | Rice husk ash is produced after combustion of rice husk, which is an industrial waste. Rice husk ash consists of 92% of SiO2. This paper describes the synthesis of completely combusted white coloured Nano Rice Husk Ash to nanoparticle size using planetary ball mill, characterization of Rice Husk Ash and Nano Rice Husk Ash using energy dispersive X-ray Analysis, X-ray Diffraction, Dynamic Light Scattering, Scanning Electron Microscopy, Thermogravimetric Analysis and Differential Thermal Analysis. For synthesizing nanoparticles, the macro size white coloured Rice Husk Ash is taken in a planetary ball mill and milled until getting nano-size particles. The characterization results revealed that after 80 hours of ball milling the Rice Husk Ash particle size is reduced to nano range, which is an amorphous structure and is thermally stable. The nano Rice Husk Ash is successfully reinforced in molten aluminium 6061 using an electrical furnace equipped with stirrer and sonicator. Improvement in hardness of new aluminium 6061 nanocomposites is observed with the reinforcement of nano rice husk ash. It is concluded that the optimum percentage of nano Rice Husk Ash reinforcement in aluminium 6061 matrix is 2 percent in weight to obtain better hardness.
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