where 𝑑 !C , 𝑑 C$ , and 𝑑 4C are lower quartile point, median, and upper quartile point. The IQCS of the as-received and milled PDS data is calculated to be 0.31 and 0.7, respectively. However, after the milling, a more homogenous symmetrical distribution is achieved by lowering the IQCS by more than 125%. where 𝑙 = and 𝑙 ; are thickness, and 𝑟 = and 𝑟 ; are radius of the green and sintered pellets.