A scaling law study of the initial stage of microwave sintering of iron spheres

作者：Demirskyi D^*; Agrawal D; Ragulya A

来源：Scripta Materialia, 2012, 66(6): 323-326.

DOI：10.1016/j.scriptamat.2011.11.017

• Microwave heating
• Sintering
• Diffusion mechanism
• Iron

The application of a classical sphere-to-sphere approach showed the possibility of identifying the main diffusion mechanisms operating during the initial stage of microwave sintering of iron powder. A neck growth exponent of n = 7 was found during conventional sintering of iron, which suggests that surface diffusion is the main sintering mechanism. This sintering mechanism was confirmed by examining the scaling law suggested by Herring. A fourfold increase in the pre-exponential factor (from 7 x 10(-8) to 2 x 10(-4)) in favor of microwave sintering was observed.

• 出版日期2012-3