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Production of very fine TiN-Mo composite powders in a low-temperature plasma stream

  • Theory, Production Technology, and Properties of Powders and Fibers
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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

In the hydrogen reduction of TiCl4, and thermal decomposition of Mo(CO)6 in a stream of shf discharge nitrogen plasma the main reaction products are titanium nitride and molybdenum. The impurity elements in the composite (carbon and oxygen) react with the titanium nitride, forming the titanium oxycarbonitride TiNxOyCz (where x + y + z = 1, y < 0.10, and z < 0.05). The formation of nitride particles takes place before the instant of full pyrolysis of Mo(C0)6, and molybdenum therefore does not cover them, but condenses in the form of free spherical particles whose mean size is about half that of the particles forming during the pyrolysis of the carbonyl without a TiCl4 addition to the reactor. A characteristic feature of the resultant fine molybdenum-nitride composite powders is a high uniformity of distribution of Ti and Mo in them.

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Authors and Affiliations

  1. Institute of New Chemical Problems, Academy of Sciences of the USSR, USSR

    T. V. Rezchikova, I. A. Domashnev, V. N. Troitskii, V. I. Torbov & Yu. M. Shul'ga

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  1. T. V. Rezchikova
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  2. I. A. Domashnev
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  3. V. N. Troitskii
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  4. V. I. Torbov
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  5. Yu. M. Shul'ga
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Translated from Poroshkovaya Metallurgiya, No. 11(251), pp. 3–8, November, 1983.

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Rezchikova, T.V., Domashnev, I.A., Troitskii, V.N. et al. Production of very fine TiN-Mo composite powders in a low-temperature plasma stream. Powder Metall Met Ceram 22, 869–873 (1983). https://doi.org/10.1007/BF00805537

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  • DOI: https://doi.org/10.1007/BF00805537

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