The ball milling process is carried out for approximately 100150 h to obtain uniform-sized fine powder. In high-energy ball milling, vacuum or a specific gaseous atmosphere is maintained inside the chamber. High-energy mills are classified into attrition ball mills, planetary ball mills, vibrating ball mills, and low-energy tumbling mills. The various parameters associated with ball milling are ball to powder ratio (BPR), rotations per minute (RPM), milling time duration and type of ball milling machine (Planetary or Horizontal ball mill). In ball milling process, the materials are fractured due to impact by balls. Finally,the particle size is increased due to cold welding.