**3.3 Object Dimensions**

Volumetric heating also depends on the object dimensions; it is shown in **Figure 6**. Temperature distribution in the slab with different dimensions of 0.01 m 0.01 m, 0.05 m 0.05 m, and 0.1 m 0.1 m, respectively, were observed. More homogeneous temperature is achieved in samples of lesser dimensions than in larger dimensions. The highest temperature peak is obtained in a very short duration, which is an indication that more homogeneity was also observed. The temperature at the slab center increases from 25 to 84°C as the dimension decreases from 0.15 to 0.01 m. This indicates an optimal dimension of the material is required to obtain the minimum temperature nonuniformity and high heating performance. Here the highest temperature peaks for sample dimensions 0.01 m 0.01 m, 0.05 m 0.05 m, and 0.1 m 0.1 m are 1000°C, 912°C, and 850°C, respectively.
