According to the Mn–Si phase diagram [9], the used sintering aid
was a eutectic alloy with a melting point of 1040 C. Obviously, at
sintering temperatures below 1040 C, no additive liquation occurs
and solid-state sintering merely governs [5–7]. On the other hand,
very high temperatures accelerate the undesirable phenomenon
Fig. 1. Optical image analyzed photos of the sintered samples with (a) 0%, (b) 2%, (c) 4%, and (d) 6% additive.
Fig. 2. Macroscopic photo of the samples after sintering.
Fig. 3. XRD pattern of the sintered sample containing 6% additive.