Search academic texts

Information × Registration Number 0222U004598, 0117U002197 , R & D reports Title Optimization of obtaining process of the microheterogeneous materials with long time operation by deformation and consolidation of powder systems with simultaneous control of defect nucleation and evolution for prevention of their growth popup.stage_title Head Shtern Mykhaylo Borysovych, Доктор технічних наук Registration Date 19-09-2022 Organization Institute of Problems of Materials Science named after IM Frantsevich of the National Academy of Sciences of Ukraine popup.description2 A new generalized four-parameter model of powder pressing and plastic deformation of porous bodies is proposed, which contains porosity and slit-like defects and allows to study both deformation of granular media and powder pressing. Using new models, the optimal methods of powders consolidation of using the rotation of punches have been developed and estimates of the reduction of pressing force for various parameters of the technological process have been obtained. Based on the theory of fractured media, a modified rheological theory of sintering of porous bodies with slit-like defects is formulated and estimates of the kinetics of their compaction are obtained. The efficiency of spark-plasma sintering for consolidation of hard-to-deform powders taking into account thermoelectric effects has been studied. New methods of improving the properties of products by optimizing heating are proposed. Product Description popup.authors Yepifantseva Tetiana О. Ivanova Inna I. Antonenko Dmytro А. Bezdorozhev Oleksii V. Braha Hanna S. Vasylieva Halyna M. Vdovychenko Oleksandr V. Hetman Olga І. Demydyk Oleksandr M. Domin Mykola A. Kirkova Olena G. Kartuzov Yegor V. Klymenko Valerii M. Klymenko Oksana А. Korieniev Oleksandr P. Korienieva Nadiia I. Korniichuk Olena V. Korobko Pavlo О. Krylova Nataliia А. Kuzmov Andrii V. Lipatieva Valentyna О. Maidaniuk Oleksandr P. Maksymenko Anrii L. Mykhailov Anatolii О. Mykhailov Oleh V. Morozov Ihor A. Morozova Raisa О. Nahorna Adelaida А. Opanasenko Maryna V. Pereviazko Tamara M. Podoliako Tetiana I. Radchenko P. Ya. Filippov Mykola I. popup.nrat_date 2022-09-19 Close