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Abstract
Observations of sintering behaviour have been made during the preparation of nickel with densities below 70% porosity by loose sintering and compacting Inco carbonyl nickel powders. By following the strength development, porosity changes, surface structure modifications, and pore shape changes, it has been shown that densification does not occur until temperatures of about 600°C are used for sintering, although surface diffusion can result in some strength being developed. The major changes in strength and structure do not occur until a temperature of 950°C is reached. PM/0242