Inelastic behavior of ceramics with hierarchical pore structure under compression
- Авторлар: Grigor’ev M.1,2, Savchenko N.1, Buyakova S.1,2,3, Kul’kov S.1,2,3
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Мекемелер:
- Institute of Strength Physics and Materials Science, Siberian Branch
- Tomsk Polytechnic University
- Tomsk State University
- Шығарылым: Том 43, № 8 (2017)
- Беттер: 723-726
- Бөлім: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/205605
- DOI: https://doi.org/10.1134/S1063785017080089
- ID: 205605
Дәйексөз келтіру
Аннотация
The compaction behavior is studied in Al2O3 ceramics with a pore space volume in the range from 35 to 60% and with the following three types of hierarchical pore structure: coarse porosity with a size of 80 to 100 μm, fine porosity with a size of 14 to 15 μm, and intermediate interblock porosity comprised of elongated (110–120 μm) porous microchannels formed as a result of zonal isolation during sintering. It is shown that the obtained hierarchical porous structure causes the formation of a hierarchical deformation structure in the volume of ceramics and leads to a decrease in the extent of destruction processes from the macroscopic scale in the case of unimodal ceramics to the microscale destruction comparable with the sizes of the blocks formed during sintering.
Авторлар туралы
M. Grigor’ev
Institute of Strength Physics and Materials Science, Siberian Branch; Tomsk Polytechnic University
Хат алмасуға жауапты Автор.
Email: grv@ispms.ru
Ресей, Tomsk, 634021; Tomsk, 634050
N. Savchenko
Institute of Strength Physics and Materials Science, Siberian Branch
Email: grv@ispms.ru
Ресей, Tomsk, 634021
S. Buyakova
Institute of Strength Physics and Materials Science, Siberian Branch; Tomsk Polytechnic University; Tomsk State University
Email: grv@ispms.ru
Ресей, Tomsk, 634021; Tomsk, 634050; Tomsk, 634050
S. Kul’kov
Institute of Strength Physics and Materials Science, Siberian Branch; Tomsk Polytechnic University; Tomsk State University
Email: grv@ispms.ru
Ресей, Tomsk, 634021; Tomsk, 634050; Tomsk, 634050