Serafim Jurkow

Picture of Serafim Jurkow

Date of Birth: 05/29/1905

Age: 92

Place of birth: a. Trubitkino

Citizenship: Russia


Born 05.29.1905 - owls. physicist, Corresponding Member. USSR Academy of Sciences (since 1958). Tsp. CPSU since 1944. He graduated from Voronezh. Univ in 1929. From 1930 he worked in the Leningrad. physical and tech. Institute (from 1947 - prof.). Bas. research region. solid-state physics and polymers. J. Works devoted to clarify the nature of the strength of brittle materials and polymers, the study of the general laws of mechanical. destruction temperature depending on the duration and mechanically. voltage. J. has conducted studies of the molecular mechanism of transition to the solid state (glass transition) polymers and amorphous substances, temperature dependence of the mechanical linking. the properties of such substances to the nature of intermolecular interactions. On the basis of these studies, he developed the theory of plasticizing polymers. Cit .: The molecular mechanism of curing polymers, "Reports of the USSR Academy of Sciences The new series." 1945, ie 47, number 7.; The time dependence of the strength of solids, "Journal of Technical Physics", 1953, t. 23, no. 10 (together with B. H. Hapzullaevym.); Temperature and time dependence of the strength of pure metals, "Reports of the USSR", 1955, Vol. 101, number 2 Joint. T. Sanfirova). Zhurkov, Serafim Nikolaevich (p 29.V.1905.) - Soviet physicist, academician (1968, Corresponding Member of 1958.). In R. c. Trubitkino former. Tambov Province. He graduated from the Voronezh University (1929). Since 1930 works in the Leningrad Physico-Technical Institute of the USSR Academy of Sciences of those, since 1947 - at the same time professor at Leningrad University. The works relate mainly to the strength of physics (experimental achievement of the theoretical strength of materials, the elucidation of atomic-molecular mechanism of destruction of solid bodies). Substantiate the assumption that local defects are the cause of low practical strength, established the dependence of the strength of the yarn diameter. These data formed the basis of the statistical theory of strength, in which the strength of the body is associated with the probability of the presence of dangerous defects. He proved a real opportunity to achieve the theoretical strength. Together with Aleksandrov and Kobeko laid the foundations of the doctrine of physical and mechanical properties of polymers and relaxation. Examine the role of intermolecular interactions in the hardening (or softening) polymer, the plasticizing influence on the hardness and softening point of the polymers. Developed the theory of curing polymers, he proposed and experimentally proved the molecular mechanism of their glass. Investigating the mechanism of destruction of solids, derived a formula for the temperature-dependence of the power durability and radically changed the understanding of the mechanism of destruction. In developed his theory it found that the process of destruction is atomic-kinetic process and the strength of the body depends not only on the interatomic cohesive forces, but also the intensity of the thermal motion. The result was a picture of the kinetic nature of the strength of solids. Obtain data on the true local stresses on the interatomic bonds, about termination of such connections initiated on such breaks secondary molecular-destructive processes, the emergence of embryonic discontinuities. He created a school in the field of strength physics. Hero of Socialist Labor (1975). Chief editor of "Solid State Physics".