| 000 | 03513nla2a2200433 4500 | ||
|---|---|---|---|
| 001 | 661493 | ||
| 005 | 20231030041748.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\32104 | ||
| 035 | _aRU\TPU\network\32103 | ||
| 090 | _a661493 | ||
| 100 | _a20191227a2019 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 105 | _ay z 100zy | ||
| 135 | _adrgn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aLow Stress Cycling of Porous Alumina Metamaterial _fM. V. Grigoriev, S. N. Kulkov |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 14 tit.] | ||
| 330 | _aThe 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. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | 0 |
_0(RuTPU)RU\TPU\network\4816 _tAIP Conference Proceedings |
|
| 463 | 0 |
_0(RuTPU)RU\TPU\network\31884 _tVol. 2167 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 (AMHS'19) _oProceedings of the International Conference, 1–5 October 2019, Tomsk, Russia _fNational Research Tomsk Polytechnic University (TPU) ; Institute of Strength Physics and Materials Science SB RAS (Russia) ; eds. V. E. Panin ; S. G. Psakhie ; V. M. Fomin _v[020119, 5 p.] _d2019 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aглиноземы | |
| 610 | 1 | _aдеформационное поведение | |
| 610 | 1 | _aкерамика | |
| 610 | 1 | _aпористость | |
| 610 | 1 | _aтрещины | |
| 610 | 1 | _aпластичность | |
| 610 | 1 | _aциклические испытания | |
| 700 | 1 |
_aGrigoriev _bM. V. |
|
| 701 | 1 |
_aKulkov _bS. N. _cspecialist in the field of material science _cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences _f1952- _gSergey Nikolaevich _2stltpush _3(RuTPU)RU\TPU\pers\31428 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа новых производственных технологий _bОтделение материаловедения _h7871 _2stltpush _3(RuTPU)RU\TPU\col\23508 |
| 801 | 2 |
_aRU _b63413507 _c20191227 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1063/1.5131986 | |
| 942 | _cCF | ||