Influence of hot pressing sintering temperature and time on microstructure and mechanical properties of TiB2 ceramics

Autor:	Zhengyi Fu, Hao Wang, Run-Zhang Yuan, Weimin Wang
Rok vydání:	2002
Předmět:	Materials science Three point flexural test Sintering Microstructure Hot pressing Grain size Fracture toughness Flexural strength visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ceramic Composite material
Zdroj:	Journal of the European Ceramic Society. 22:1045-1049
ISSN:	0955-2219
DOI:	10.1016/s0955-2219(01)00424-1
Popis:	In this paper, a titanium diboride ceramic was produced by the hot pressing sintering method. The effects of hot pressing parameters on the TiB 2 ceramic microstructure and mechanical properties were studied. The bending strength and fracture toughness were measured by three point bending testing and single edge notched bending tests (SENB), respectively. The microstructure features of the TiB 2 sintered material were revealed by means of SEM and TEM. The results show that the TiB 2 grain size increases quickly with the increasing temperature and time during hot pressing sintering. The density and the TiB 2 grain size have a great influence on the mechanical properties. The bending strength decreases with increasing TiB 2 grain size, whilst the fracture toughness increases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b61b91e9d38e0a3c100d02b0ebb1a33a https://doi.org/10.1016/s0955-2219(01)00424-1 Zobrazit plný text záznamu Full Text from ScienceDirect