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  1. No Access

    Article

    Investigation of physicochemical properties of tungsten — Rhenium thermoelectrodes

    The authors studied some physicochemical properties of tungsten rhenium thermoelectrodes. It is shown that the instability of the work of a thermocouple with these electrodes and the increase in their brittlen...

    Yu. B. Kuz'ma, S. M. Kidun, B. I. Lakh… in Soviet Powder Metallurgy and Metal Ceramics (1962)

  2. No Access

    Article

    X-ray diffraction study of the system tungsten-rhenium-carbon

    The system W-Re-C was studied by the method of x-ray structural analysis. Phase equilibria were established for as-cast alloys and alloys quenched from 2000, 1500, 1000, and 800°C. Rhenium and α-W2C form continuo...

    Yu. B. Kuz'ma, V. I. Lakh, V. Ya. Markiv… in Soviet Powder Metallurgy and Metal Ceramics (1964)

  3. No Access

    Article

    Phase equilibria in the system Zr-W-C

    The system Zr-W-C was investigated by the methods of X-ray diffraction and microstructural analyses. Phase equilibria at 1500°C were determined for as-cast and annealed alloys. The carbide ZrC dissolves 34 mo%...

    Yu. B. Kuz'ma, T. F. Fedorov, É. A. Shvets in Soviet Powder Metallurgy and Metal Ceramics (1965)

  4. No Access

    Article

    Phase equilibria in the system zirconium-chromium-carbon

    Phase equilibria in the system Zr-Cr-C at 1300°C were investigated by themethods of x-ray diffraction and microstructural analyses (Fig. 2). Zirconium carbide dissolves up to 6 at.% Cr, while chromium carbides...

    T. F. Fedorov, Yu. B. Kuz'ma in Soviet Powder Metallurgy and Metal Ceramics (1965)

  5. No Access

    Article

    Phase equilibria in the ternary system zirconium-molybdenum-carbon

    The system Zr-Mo-C was investigated by means of x-ray diffraction and microstructural analyses. Phase equilibria in the system at 1400 and 600°C were established (Fig. 1). The compound Mo2C dissolves about 4 at.%...

    T. F. Fedorov, Yu. B. Kuz'ma… in Soviet Powder Metallurgy and Metal Ceramics (1965)

  6. No Access

    Article

    Phase equilibria in the system molybdenum-chromium-carbon

    The methods of x-ray diffraction and microstructural analyses were employed for studying the system Mo-Cr-C, and an isothermal section (1350°C) of the system was plotted. At high carbon contents, the alloys wh...

    Yu. B. Kuz'ma, T. F. Fedorov in Soviet Powder Metallurgy and Metal Ceramics (1965)

  7. No Access

    Article

    Phase equilibria in the ternary systems Zr—Co—C and Nb—Fe—C

    T. F. Fedorov, Yu. B. Kuz'ma… in Soviet Powder Metallurgy and Metal Ceramics (1965)

  8. No Access

    Article

    The rhenium-chromium-carbon system

    The Re-Cr-C system was investigated by means of x-ray and microstructural analyses. Phase equilibria were established for cast alloys at 1300‡ C (Fig. 1). The compound Cr23C6 dissolves about 20 at. % Re, and the ...

    L. V. Gorshkova, T. F. Fedorov… in Soviet Powder Metallurgy and Metal Ceramics (1966)

  9. No Access

    Article

    Isothermal section of the molbdenum-iron-boron system

    1. The Mo-Fe-B system has been studied by x-ray structural methods and microstructural analyses, and the isother...

    E. I. Gladyshevskii, T. F. Fedorov… in Soviet Powder Metallurgy and Metal Ceramics (1966)

  10. No Access

    Article

    X-ray diffraction study of the system niobium-tungsten-boron

    The system Nb-W-B was investigated by the x-ray diffraction method. The phase equilibria in this system at 1500° C were established (Fig. 1). The compound W2B dissolves 15 at.% Nb, Nb3B2 dissolves 35 at. % W, and...

    Yu. B. Kuz'ma, V. I. Lakh, B. I. Stadnyk… in Soviet Powder Metallurgy and Metal Ceramics (1966)

  11. No Access

    Article

    Ternary systems nio bium-rhenium-carbon and tantalum-rhenium-carbon

    The systems Nb-Re-C and Ta-Re-C were investigated by the methods of x-ray and metallographic analyses. The phase equilibria in these systems at 1800°C were determined (Figs. 1 and 3). In the ascast high-rheniu...

    L. V. Gorshkova, T. F. Fedorov… in Soviet Powder Metallurgy and Metal Ceramics (1967)

  12. No Access

    Article

    Phase equilibria in the ternary systems Zirconium-Vanadium-Boron, Zirconium-Niobium-Boron and Zirconium-Manganese-Boron

    The systems Zr-V-B, Zr-Nb-B, and Zr-Mn-B were investigated by the x-ray diffraction technique, and their phase equilibria at 900° C (Zr-V-B and Zr-Mn-B) and 1500° C (Zr-Nb-B) were established. Ternary compound...

    Yu. V. Voroshilov, Yu. B. Kuz'ma in Soviet Powder Metallurgy and Metal Ceramics (1967)

  13. No Access

    Article

    Phase equilibria in tantalum — Titanium — Boron and tantalum — Molybdenum — Boron systems

    A. S. Sobolev, Yu. B. Kuz'ma, T. E. Soboleva… in Soviet Powder Metallurgy and Metal Ceramics (1968)

  14. No Access

    Article

    Preparation of neodymium digermanide

    K. A. Lynchak, T. Ya. Kosolapova… in Soviet Powder Metallurgy and Metal Ceramics (1968)

  15. No Access

    Article

    Phase equilibria in the systems tungsten-chromium-boron and tungsten-molybdenum-boron

    V. S. Telegus, Yu. B. Kuz'ma in Soviet Powder Metallurgy and Metal Ceramics (1968)

  16. No Access

    Article

    Phase equilibria in the systems vanadium-chromium-carbon, niobium-chromium-carbon, and tantalum-chromium-carbon

    The systems V-Cr-C, Nb-Cr-C, and Ta-Cr-C were investigated by x-ray diffraction and metallographic techniques. The phase equilibria in the system V-Cr-C at 1000°C and the existence of a compound of the approxi...

    T. F. Fedorov, N. M. Popova, L. V. Gorshkova… in Soviet Powder Metallurgy and Metal Ceramics (1968)

  17. No Access

    Article

    Phase equilibria in the systems Zr-Re-B and W-Re-B

    Alloys of the systems Zr-Re-B and W-Re-B in the as-cast condition and after quenching from 1500°C, were studied by x-ray diffraction and metallographic techniques. Isothermal sections of these systems were con...

    Yu. B. Kuz'ma, V. I. Lakh, B. I. Stadnyk… in Soviet Powder Metallurgy and Metal Ceramics (1968)

  18. No Access

    Article

    The phases in the lanthanum-germanium system

    The lanthanum-germanium system was investigated. The existence of four, previously established compounds was confirmed. The width of the homogeneity region of the lanthanum-rich compounds is narrow. The width ...

    K. A. Lynchak, Yu. B. Kuz'ma… in Soviet Powder Metallurgy and Metal Ceramics (1968)

  19. No Access

    Article

    Structure and properties of yttrium germanides

    1. The authors have synthesized by arc fusion from the elements yttrium germanide phases with the composition YG...

    K. A. Lynchak, Yu. B. Kuz'ma… in Soviet Powder Metallurgy and Metal Ceramics (1969)

  20. No Access

    Article

    The ternary chromium - Rhenium - Boron system

    1. The Cr-Re-B system was studied by methods of x-ray structural and microstructural analyses and the isothermal...

    V. S. Telegus, Yu. B. Kuz'ma… in Soviet Powder Metallurgy and Metal Ceramics (1969)

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