Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на этот ресурс: http://earchive.tpu.ru/handle/11683/35775
Название: Structures and properties of alumina-based ceramic for reconstructive oncology
Авторы: Grigoriev, Mikhail Vladimirovich
Kulkov, Sergey Nikolaevich
Ключевые слова: структура; свойства; керамика; оксид алюминия; реконструктивная хирургия; керамические порошки; спекание; пористые структуры
Дата публикации: 2016
Издатель: AIP Publishing
Библиографическое описание: Grigoriev M. V. Structures and properties of alumina-based ceramic for reconstructive oncology / M. V. Grigoriev, S. N. Kulkov // AIP Conference Proceedings. — 2016. — Vol. 1760 : Physics of Cancer: Interdisciplinary Problems and Clinical Applications 2016 : Proceedings of the International conference, 22-25 March 2016, Tomsk, Russia. — [020022, 5 p.].
Аннотация: The 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.
URI: http://earchive.tpu.ru/handle/11683/35775
Располагается в коллекциях:Материалы конференций

Файлы этого ресурса:
Файл РазмерФормат 
dx.doi.org-10.1063-1.4960241.pdf325,71 kBAdobe PDFПросмотреть/Открыть


Все ресурсы в архиве электронных ресурсов защищены авторским правом, все права сохранены.