Some Effects of Particle Size on the Sintering of Titanium and a Master Sintering Curve Model
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IT is well known that reducing the particle size increases the rate at which sintering and densification occur during powder metal processing.[1–6] However, there is a limited amount of quantitative data in the literature on the effects of particle size on the sintering of titanium powders. Quantitative information is important for modeling sintering behavior and for comparing published results for which different particle sizes have been used. It also provides insight into the mechanisms of sintering. The size of titanium and titanium hydride powders used in powder metallurgy is usually within the range 5 to 500 lm, but sizes as low as approximately 10 nm have been reported.[7,8] The fractions
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