The sintering mechanism of aluminum oxide was studied with attention to the influence of time, temperature, and particle size. Mechanisms proposed by other investigators are reviewed as they pertain to the information obtained from the study. Shrinkage, density, and grain growth are considered; they indicate that rate and degree of sintering increase with decreasing particle size. Loose powders are shown to exhibit sintering phenomena when the particle size is small.
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WILDER et al. (1955) studied this question.
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