Fracture Peculiarities of Porous Alumina Metamaterial; AIP Conference Proceedings; Vol. 2167 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 (AMHS'19)
| Источник: | AIP Conference Proceedings Vol. 2167 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 (AMHS'19).— 2019.— [020117, 4 p.] |
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| Главный автор: | |
| Автор-организация: | |
| Другие авторы: | , |
| Примечания: | Title screen It has been studied alumina ceramics with multilevel porous structure consist of macro and micro pores, and porous channels separate of material blocks. Macro-pores were formed ultra-high molecular weight polyethylene and porous channels were formed due to zonal shrinkage during sintering of green body. The percentage ratio of these pore types are 15%, 30% and 55% for pore channels, fine and large pores, respectively. It has been shown that first cracks are formed almost from the beginning of deformations - approximately not more 30% of fracture strength and localized near blocks boundaries. It has been shown that a main fracture type under compression test is fractured of individual blocks without fracture of whole sample. This means that fracture scale level decrease from macroscopic to mesoscopic one. Режим доступа: по договору с организацией-держателем ресурса |
| Язык: | английский |
| Опубликовано: |
2019
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| Online-ссылка: | https://doi.org/10.1063/1.5131984 |
| Формат: | Электронный ресурс Статья |
| Запись в KOHA: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661492 |
| Примечания: | Title screen It has been studied alumina ceramics with multilevel porous structure consist of macro and micro pores, and porous channels separate of material blocks. Macro-pores were formed ultra-high molecular weight polyethylene and porous channels were formed due to zonal shrinkage during sintering of green body. The percentage ratio of these pore types are 15%, 30% and 55% for pore channels, fine and large pores, respectively. It has been shown that first cracks are formed almost from the beginning of deformations - approximately not more 30% of fracture strength and localized near blocks boundaries. It has been shown that a main fracture type under compression test is fractured of individual blocks without fracture of whole sample. This means that fracture scale level decrease from macroscopic to mesoscopic one. Режим доступа: по договору с организацией-держателем ресурса |
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| DOI: | 10.1063/1.5131984 |