2008Materials Science and Engineering of Powder MetallurgyRequires access

Influence of sintering parameters on carbonyl iron powder prepared by spark plasma sintering

Lan Sun

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Abstract

Sintering densification behavior, hardness and grain growth characteristics of carbonyl iron powder prepared by spark plasma sintering (SPS) were studied. The results indicate that the relative density of the compact sintered at 600 ℃ by SPS is higher than 95% and it almost doesn’t change when the compact sintered at the temperate of higher than 600 ℃. With the increase of the sintering holding time, the relative density of the compacts hardly increases, but the hardness could be improved. The grain size of sintered compact displaces a little dreasement as long as the sintering temperature and holding time increase.

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Sintering densification behavior, hardness and grain growth characteristics of carbonyl iron powder prepared by spark plasma sintering (SPS) were studied. The results indicate that the relative density of the compact sintered at 600 ℃ by SPS is higher than 95% and it almost doesn’t change when the compact sintered at the temperate of higher than 600 ℃. With the increase of the sintering holding time, the relative density of the compacts hardly increases, but the hardness could be improved. The grain size of sintered compact displaces a little dreasement as long as the sintering temperature and holding time increase.

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Available abstract

Sintering densification behavior, hardness and grain growth characteristics of carbonyl iron powder prepared by spark plasma sintering (SPS) were studied. The results indicate that the relative density of the compact sintered at 600 ℃ by SPS is higher than 95% and it almost doesn’t change when the compact sintered at the temperate of higher than 600 ℃. With the increase of the sintering holding time, the relative density of the compacts hardly increases, but the hardness could be improved. The grain size of sintered compact displaces a little dreasement as long as the sintering temperature and holding time increase.

Key concepts: Spark plasma sintering, Materials science, Sintering, Relative density, Metallurgy, Grain size, Grain growth, Plasma

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