Preparation of dense nanostructured titania ceramic using two step sintering

Autor:	Yanhui Li, D. Li, Zongwen Liu, S.-O. Chen, D.-C. Wang, W.-Q. Shao, Simon P. Ringer, Y.-Z. Long
Rok vydání:	2010
Předmět:	Materials science Mechanical Engineering Two step Metallurgy Sintering Condensed Matter Physics Grain size Isothermal process law.invention Selective laser sintering Grain growth Mechanics of Materials law visual_art visual_art.visual_art_medium Relative density General Materials Science Ceramic
Zdroj:	Materials Technology. 25:42-44
ISSN:	1753-5557 1066-7857
DOI:	10.1179/175355509x12608871787997
Popis:	TiO2 ceramic was sintered by two types of processes: a conventional isothermal sintering and a two step sintering. A full densification without notable grain growth was achieved when the specimen was first heated to a higher temperature (T1=1300°C) and then cooled immediately for a long treatment at a lower temperature (T2=1000°C). Nanostructured TiO2 ceramics with a grain size of 110 nm and relative density 97% has been prepared using a two step sintering procedure. The results show that it is possibe to prepare dense and fine size grain nanostructured titania ceramics under an optimum sintering condition. The two step sintering method can successfully suppress the accelerated grain growth that usually occurs during the final sintering stage and make it possible to apply titania ceremics as structure materials and tissue engineering materials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::99c4a5c56f279c5119ecbceb594742bf https://doi.org/10.1179/175355509x12608871787997 Zobrazit plný text záznamu