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2007•Journal of Nanjing Institute of TechnologyRequires access

Study on Bulk Nanocrystalline Ni Prepared by High Energy Ball Milling

Yuming Dai

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Abstract

Nanocrystalline Ni powder was produced by utilizing high energy ball milling and then sintered into Nanocrystalline Nickel bulk materials.Microstructure investigations were carried out to examine the structure of nanocrystalline powder and bulk.The results corroborate that the average grain size of the high energy ball milled Ni powder is 10nm;pre-pressure sintering block in average grain size is less than 100nm;bulk density relative to the sintering temperature reaches its maximum value at 0.6T_m.

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What this paper is about

Nanocrystalline Ni powder was produced by utilizing high energy ball milling and then sintered into Nanocrystalline Nickel bulk materials.Microstructure investigations were carried out to examine the structure of nanocrystalline powder and bulk.The results corroborate that the average grain size of the high energy ball milled Ni powder is 10nm;pre-pressure sintering block in average grain size is less than 100nm;bulk density relative to the sintering temperature reaches its maximum value at 0.6T_m.

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Available abstract

Nanocrystalline Ni powder was produced by utilizing high energy ball milling and then sintered into Nanocrystalline Nickel bulk materials.Microstructure investigations were carried out to examine the structure of nanocrystalline powder and bulk.The results corroborate that the average grain size of the high energy ball milled Ni powder is 10nm;pre-pressure sintering block in average grain size is less than 100nm;bulk density relative to the sintering temperature reaches its maximum value at 0.6T_m.

Key concepts: Nanocrystalline material, Materials science, Ball mill, Grain size, Microstructure, Sintering, Metallurgy, Ball (mathematics)

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