caa a22 4500 465798152 CHVBK 20180323112044.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF00795353 doi (NATIONALLICENCE)springer-10.1007/BF00795353 Examination of the physical properties of ZrC-W carbide-metallic alloys [Elektronische Daten] [V. Neshpor, B. Fridlender, P. Komozynskii, E. Ostrovskii, N. Kalinina] Conclusions: The heat conductivity of the two-phase alloys of ZrC-W system increases with an increase of the tungsten content and with increase in temperature. This is caused by the electron contribution to the heat conductivity of the crbide phase. The electrical resistance of these alloys decreases with increase in tungsten content and increases with increase in temperature. At a mass constant of ZrC > 25% the temperature dependence of the electrical resistance of the alloys is nonlinear as a result of slight overlapping of the valency band by the conduction band in the carbide phase. The mean coefficient of thermal expansion ZrC-75% (wt.) W alloy increases with increase in temperature from 5.5·10−6 in the range 300-600 to 7.05·10−6 K−1 in the range 300-2300°K. The spectral emission factor ɛλ=0.65 mm of the ZrC-W alloys increases with an increase of the zirconium carbide content. With increase in temperature $$\varepsilon _{\lambda _e } $$ decreases for tungsten, zirconium alloy, and alloys with a mass content of W < 40%. For the alloys with a tungsten content of 45-75% $$\varepsilon _{\lambda _e } $$ depends only slightly on temperature. This can be explained by the presence of tungsten carbides in the subsurface layer. The critical wavelength of these carbides (λX=500-600 nm) is close to the wavelength in pyrometric measurements. The fracture tensile stress of the specimens of the alloys with a mass constant of tungsten of 75% increases with increase in temperature as a result of utilization of a certain ductility margin of the brittle material. Plenum Publishing Corporation, 1990 Neshpor V. Scientific and Production Organisation of Abrasives and Grinding, USSR aut Fridlender B. Scientific and Production Organisation of Abrasives and Grinding, USSR aut Komozynskii P. Scientific and Production Organisation of Abrasives and Grinding, USSR aut Ostrovskii E. Scientific and Production Organisation of Abrasives and Grinding, USSR aut Kalinina N. Scientific and Production Organisation of Abrasives and Grinding, USSR aut Soviet Powder Metallurgy and Metal Ceramics Kluwer Academic Publishers-Plenum Publishers 29/6(1990-06-01), 502-508 0038-5735 29:6<502 1990 29 11106 https://doi.org/10.1007/BF00795353 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00795353 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Neshpor V. Scientific and Production Organisation of Abrasives and Grinding, USSR aut NATIONALLICENCE 700 1- Fridlender B. Scientific and Production Organisation of Abrasives and Grinding, USSR aut NATIONALLICENCE 700 1- Komozynskii P. Scientific and Production Organisation of Abrasives and Grinding, USSR aut NATIONALLICENCE 700 1- Ostrovskii E. Scientific and Production Organisation of Abrasives and Grinding, USSR aut NATIONALLICENCE 700 1- Kalinina N. Scientific and Production Organisation of Abrasives and Grinding, USSR aut NATIONALLICENCE 773 0- Soviet Powder Metallurgy and Metal Ceramics Kluwer Academic Publishers-Plenum Publishers 29/6(1990-06-01), 502-508 0038-5735 29:6<502 1990 29 11106 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer