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Reaction of carbon fibers with magnesium

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

  1. 1.

    Carbon fibers in contact with a magnesium-base matrix experience no loss of strength during heating for 100–500 h at temperatures up to 400–450°C. In contrast to the aluminum-carbon-fibers system, 5-min contact with molten magnesium in the temperature range 660–780°C brings about no loss of fiber strength; interaction between the phases in this case is apparently restricted to diffusion across the interfaces.

  2. 2.

    In the temperature range 450–660°C carbon fibers vigorously react with a magnesium-base matrix, as a result of which their strength falls. The loss of strength suffered by carbon fibers during heat treatment for 100 h at 550°C may amount to 60–70% of their starting strength; under these conditions the cross-sectional area of the fibers decreases by 15–20%.

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Authors and Affiliations

  1. All-Union Scientific-Research Institute of Aircraft Materials, USSR

    S. I. Dement'ev, A. A. Zabolotskii, I. V. Romanovich, S. A. Prokof'ev & S. E. Salibekov

Authors
  1. S. I. Dement'ev
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  2. A. A. Zabolotskii
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  3. I. V. Romanovich
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  4. S. A. Prokof'ev
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  5. S. E. Salibekov
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Additional information

Translated from Poroshkovaya Metallurgiya, No. 3(171), pp. 50–54, March, 1977.

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Dement'ev, S.I., Zabolotskii, A.A., Romanovich, I.V. et al. Reaction of carbon fibers with magnesium. Powder Metall Met Ceram 16, 197–200 (1977). https://doi.org/10.1007/BF00794086

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  • DOI: https://doi.org/10.1007/BF00794086

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