The behavior of nanostructured and submicrometer α‐Al 2 O 3 powders during the initial stages of field‐assisted sintering technique (FAST), conventional, and microwave sintering was investigated using the laser‐flash technique for thermo‐optical measurements (TOM). An enhanced neck formation due to surface diffusion at very early stages of sintering was found in FAST samples. No significant difference due to heating rate has been found in these various samples.
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Stanciu et al. (2007) studied this question.
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