Conclusions
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1.
A study was made of the vacuum sintering of pure TiC and TiC with an activating addition (1% Ni).
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2.
The addition of 1% of nickel to TiC activates the sintering process. The relative density and linear shrinkage of nickel-containing titanium carbide sintered at 1300°C are the same as those of pure titanium carbide sintered at 2200°C.
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3.
During the vacuum sintering of TiC with a nickel addition, the nickel evaporates over the temperature range 1500–1800°C. Specimens sintered in a vacuum at 2000°C contain virtually no nickel.
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4.
High-temperature heat treatment has no significant effect upon the lattice parameters of TiC and TiC + 1% Ni, which shows that no decarbidization of TiC occurs in the course of vacuum sintering at high temperatures.
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Literature cited
V. N. Eremenko, Titanium Carbide and Oxidation-Resistant Materials Based on It [in Russian], Izd. Akad. Nauk USSR, Kiev (1961).
I. M. Fedorchenko and R. A. Andrievskii, Principles of Powder Metallurgy [in Russian], Izd. Akad. Nauk USSR, Kiev (1961).
R. Kieffer and F. Benesovsky, Hard Materials [Russian translation], Metallurgiya, Moscow (1968).
I. I. Timofeeva and L. A. Klochkov, in: Refractory Carbides [in Russian], Naukova Dumka, Kiev (1970), p. 143.
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Translated from Poroshkovaya Metallurgiya, No. 4 (136), pp. 23–27, April, 1974.
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Yatsenko, A.V., Dzneladze, Z.I., Borok, B.A. et al. Production of porous TiC material by the method of activated sintering in a vacuum. Powder Metall Met Ceram 13, 276–279 (1974). https://doi.org/10.1007/BF00796800
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DOI: https://doi.org/10.1007/BF00796800