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Comminution behavior of ASM diamond micropowder during cold pressing

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

ASM powder comminuted under a pressure of 5 GPa can be represented as a two-fraction mixture of grains. This means that, at certain ratios between the linear dimensions characterizing the two fractions forming as a result of cold pressing, viz., X2/X1 > 8, a densification phenomenon can be expected to manifest itself. The phenomenon is particularly pronounced at an optimum ratio between the weights of the fractions. Because of their specific character, grain size distribution histograms of such powders comminuted under the above-mentioned pressure can be employed for choosing a suitable grain size for attaining closer grain packing and, after subsequent sintering, obtaining minimum porosity in dielectric heat-conducting layers and decreasing the amount of the conducting phase in them.

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Literature cited

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Authors and Affiliations

  1. Odessa University, USSR

    E. N. Gruzdeva, V. S. Kardasevich, A. V. Suranov, T. N. Nesterenko & Yu. M. Rotner

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  1. E. N. Gruzdeva
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  2. V. S. Kardasevich
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  3. A. V. Suranov
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  4. T. N. Nesterenko
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  5. Yu. M. Rotner
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Translated from Poroshkovaya Metallurgiya, No. 8 (272), pp. 23–27, August, 1985.

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Gruzdeva, E.N., Kardasevich, V.S., Suranov, A.V. et al. Comminution behavior of ASM diamond micropowder during cold pressing. Powder Metall Met Ceram 24, 603–606 (1985). https://doi.org/10.1007/BF00791946

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  • DOI: https://doi.org/10.1007/BF00791946

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