Low stress cycling of porous alumina metamaterial

M. V. Grigoriev, S. N. Kulkov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The deformation behavior of alumina ceramics with multi-level pore structure and strain accumulation during cyclic compression tests with increasing load has been studied. It is established that the creation of a block structure in alumina ceramics, due to multilevel porosity and the effect of "zonal segregation", allows moving from brittle deformation behavior to quasi-plastic. Cyclic tests indicated the presence a hysteresis and allowed to determine the residual deformation (the limit of proportionality). It is shown that the residual deformation occurs after a stress of 13 MPa, which is approximately 0.3 of fracture stresses. Microanalysis of the fracture surface indicates that the fracture goes along the boundaries of the blocks, or in other words, through the pore channels. Analysis of the stress-train curves before beginning of plasticity showed that it can be divided into three parts with different slopes which define a "technical" modulus under compression test. Cyclic tests with increasing load indicate high resistance of alumina ceramics with multilevel pore structure to defects arising in its volume, which is not typical of alumina ceramics with unimodal or bimodal porosity.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
EditorsVictor E. Panin, Sergey G. Psakhie, Vasily M. Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419124
DOIs
Publication statusPublished - 19 Nov 2019
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 - Tomsk, Russian Federation
Duration: 1 Oct 20195 Oct 2019

Publication series

NameAIP Conference Proceedings
Volume2167
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
CountryRussian Federation
CityTomsk
Period1.10.195.10.19

Fingerprint

aluminum oxides
porosity
cycles
ceramics
compression tests
high resistance
microanalysis
plastic properties
plastics
hysteresis
slopes
defects
curves

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Grigoriev, M. V., & Kulkov, S. N. (2019). Low stress cycling of porous alumina metamaterial. In V. E. Panin, S. G. Psakhie, & V. M. Fomin (Eds.), Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 [020119] (AIP Conference Proceedings; Vol. 2167). American Institute of Physics Inc.. https://doi.org/10.1063/1.5131986

Low stress cycling of porous alumina metamaterial. / Grigoriev, M. V.; Kulkov, S. N.

Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019. ed. / Victor E. Panin; Sergey G. Psakhie; Vasily M. Fomin. American Institute of Physics Inc., 2019. 020119 (AIP Conference Proceedings; Vol. 2167).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Grigoriev, MV & Kulkov, SN 2019, Low stress cycling of porous alumina metamaterial. in VE Panin, SG Psakhie & VM Fomin (eds), Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019., 020119, AIP Conference Proceedings, vol. 2167, American Institute of Physics Inc., International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019, Tomsk, Russian Federation, 1.10.19. https://doi.org/10.1063/1.5131986
Grigoriev MV, Kulkov SN. Low stress cycling of porous alumina metamaterial. In Panin VE, Psakhie SG, Fomin VM, editors, Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019. American Institute of Physics Inc. 2019. 020119. (AIP Conference Proceedings). https://doi.org/10.1063/1.5131986
Grigoriev, M. V. ; Kulkov, S. N. / Low stress cycling of porous alumina metamaterial. Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019. editor / Victor E. Panin ; Sergey G. Psakhie ; Vasily M. Fomin. American Institute of Physics Inc., 2019. (AIP Conference Proceedings).
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