Papers by Author: Lasar S. Shvindlerman

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Authors: Dmitri A. Molodov, U. Czubayko, Günter Gottstein, Lasar S. Shvindlerman
Authors: Eugen Rabkin, V.N. Semenov, Lasar S. Shvindlerman, Boris B. Straumal
Authors: Yuri Estrin, Günter Gottstein, Lasar S. Shvindlerman
Abstract: Diffusion controlled creep in nanostructured materials is considered for the case when grain growth occurs concurrently. The Nabarro-Herring and Coble mechanisms that would predict creep rate reduction are re-considered to include the effect of grain-growth induced vacancy generation. It is shown that under such conditions creep is accelerated during an initial stage of grain growth as compared to the case of constant grain size. This creep enhancement stage is followed by a period of reduced creep rate. The predicted strain rate behaviour resembles primary and secondary creep.
Authors: Eugen Rabkin, V. Semenov, W. Gust, Lasar S. Shvindlerman
Authors: A.N. Aleshin, R.G. Faulkner, Lasar S. Shvindlerman
Authors: L.A. Barrales-Mora, Lasar S. Shvindlerman, Günter Gottstein
Abstract: The effect of the triple line energy on grain growth was studied by means of computer simulations with a network model. The results showed that the driving force stemming from the triple lines can influence significantly the evolution of grain growth.
Authors: D. Mattissen, D. Kirch, Dmitri A. Molodov, Lasar S. Shvindlerman, Günter Gottstein
Abstract: The motion and geometry of connected grain boundary systems with triple junctions in aluminium -10 ppm magnesium was investigated in-situ with a special designed SEM heating stage. The results show that triple junctions can have a marked influence on grain boundary motion. The grain area change with annealing time was from a hot stage in the SEM. An analysis of the experimental data reveals that there is no unique relationship between growth rate and the number n of grain sides (Von Neumann-Mullins relation). This is attributed to the effect of triple junction drag on grain growth.
Authors: Vera G. Sursaeva, U. Czubayko, Günter Gottstein, Lasar S. Shvindlerman
Authors: Lasar S. Shvindlerman
Abstract: The story of the creation of Einstein’s theory of Brownian motion is considered to the background of Einstein private life and understanding of science at the end of the 19th and the very beginning of the 20th century.
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