It is devoted to the experimental study of the creep of an aluminum alloy containing microscopic inclusions. It was found that preliminary electric ignition (j<3· 106 A/m2) of the material leads to an increase in the creep of the samples. The reasons for the observed changes are associated by the authors with the formation of local areas of high mechanical stresses near the interface of the inclusion - matrix interface. The assessment of the level of emerging local thermoelastic stresses in aluminum deltaT ~ 35 MPa, as well as the characteristic size of such areas (~ 2 µm). The observed increase in creep is determined by the resultant effect of residual stresses and stresses of thermal nature, which contributes to the creation of additional local sources of deformation in the interfacial regions. Local stress concentrators lead to a local increase in the number of mobile dislocations, which is the main reason for the change in the mechanical properties of the aluminum alloy under consideration with microscopic inclusions.

The presented work is devoted to the study of deformation and destruction of porous ceramics based on diatomite. The dependences of the elastic modulus of the material on porosity were obtained by scanning electron microscopy, mechanical compression tests of samples and acoustic emission method: with a change in the porosity of the medium in the range of 20-60%, the value of the elastic modulus varied in the range from 240 to 50 MPa. It was also found that the tensile strength of the material σs changes by ~10 MPa with a change in porosity.

Статья посвящена исследованию принципов успешной пространственной организации образовательного и исследовательского процессов современного университета предпринимательского типа, ориентированной на привлечение талантливой молодежи и ведущих ученых со всего мира, проведение научных исследований и формирование стратегического инновационного ядра территории присутствия. Цель исследования – представить обобщенную, оптимальную картину организации пространственно-архитектурной среды университета предпринимательского типа в условиях нашей страны. В качестве эмпирического материала использовались данные мониторинга деятельности организаций высшего образования, статистики, а также материалы рейтинговых агентств, ведущих российских и зарубежных университетов об особенностях развития кампусных систем ведущих университетов.