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100 _a20161129a2016 k y0engy50 ba
101 0 _aeng
105 _ay z 100zy
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aStructures and properties of alumina-based ceramic for reconstructive oncology
_fM. V. Grigoriev, S. N. Kulkov
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 10 tit.]
330 _aThe microstructure of alumina ceramics based on powders with a varying grain size has been investigated. Both commercial alumina powders and those fabricated by denitration of aluminum salts in high-frequency discharge plasma were used. It is shown that the variation of the sintering temperature and morphology of the initial powders of the particles leads to a change of the pore structure of ceramics from pore isolated clusters to a structure consisting of a ceramic skeleton and a large pore space. Changing the type of pore structure occurs at about 50% of porosity. The ceramic pore size distribution is bimodal. Dependencies final density vs initial density are linear; at the same time with increasing temperature, inclination of changes from positive to negative, indicating the change of sealing mechanisms. Extrapolation of these curves showed that they intersect with the values of density of about 2 g/m{3}, which indicates the possibility of producing non-shrink ceramics. It is shown that the strength increases with increasing nanocrystalline alumina content in powder mixture. A change in the character the pore structure is accompanied by a sharp decrease in strength, which corresponds to the percolation transition in ceramics. These results showed that it is possible to obtain ceramic materials with the structure and properties similar to natural bone.
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\17033
_tVol. 1760 : Physics of Cancer: Interdisciplinary Problems and Clinical Applications 2016
_oProceedings of the International conference, 22-25 March 2016, Tomsk, Russia
_fNational Research Tomsk Polytechnic University (TPU) ; eds. E. Y. Gutmanas ; O. B. Naimark ; Yu. P. Sharkeev
_v[020022, 5 p.]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aструктура
610 1 _aсвойства
610 1 _aкерамика
610 1 _aоксид алюминия
610 1 _aреконструктивная хирургия
610 1 _aкерамические порошки
610 1 _aспекание
610 1 _aпористые структуры
700 1 _aGrigoriev
_bM. V.
_cspecialist in the field of materials science
_cAssociate Professor of Tomsk Polytechnic University, candidate of technical sciences
_f1984-
_gMikhail Vladimirovich
_2stltpush
_3(RuTPU)RU\TPU\pers\36452
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 (ТПУ)
_bИнститут физики высоких технологий (ИФВТ)
_bКафедра материаловедения и технологии металлов (МТМ)
_h73
_2stltpush
_3(RuTPU)RU\TPU\col\18689
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут физики высоких технологий (ИФВТ)
_bКафедра материаловедения в машиностроении (ММС)
_h74
_2stltpush
_3(RuTPU)RU\TPU\col\18688
801 2 _aRU
_b63413507
_c20170120
_gRCR
856 4 _uhttp://dx.doi.org/10.1063/1.4960241
856 4 _uhttp://earchive.tpu.ru/handle/11683/35775
942 _cCF