MnZnフェライトの粉体特性と圧縮挙動

概要

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The densities and properties of MnZn ferrite powder treated at different conditions have been investigated with the purposes to control the density of green compact and to study the relationship between compressibility and the powder properties. The powder properties have been characterized by SEM, BET, mercury porosimetry, and particle size analyzers. It is found that the compressibility of the MnZn ferrite powder, which presented by the densities of compact, is markedly influenced by the heat treatment temperatures and the water vapor pressures of the ambient atmosphere. The powders treated at lower temperatures or lower water vapor pressures show better compressibility and then are thought to be composed of softer agglomeration. The consideration of not only the density of compact but also all other powder properties is required for characterizing the aggregation states of the MnZn ferrite powder.
社団法人粉体粉末冶金協会の論文