Synthesis, microstructure, and mechanical properties of WC–TiC–Co ceramic composites

Autor:	Dilek Duman, Hasan Gökçe, Huseyin Cimenoglu
Rok vydání:	2012
Předmět:	Materials science Metallurgy chemistry.chemical_element Sintering Microstructure Carbide chemistry.chemical_compound chemistry visual_art Powder metallurgy Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Relative density Stearic acid Ceramic Composite material Titanium
Zdroj:	Journal of the European Ceramic Society. 32:1427-1433
ISSN:	0955-2219
DOI:	10.1016/j.jeurceramsoc.2011.06.013
Popis:	A ceramic composite constituting the formula 78 wt% WC–16 wt% TiC–6 wt% Co denoted as the 78WC–16TiC–6Co ceramic composite was fabricated using a powder metallurgy process, by utilising commercially available WC and Co powders, and laboratory produced TiC powders. TiC powders were produced from machining chips of Grade 4 Titanium. Five different procedures were followed for the manufacturing process by altering the amount of the binding agent (stearic acid) and/or compacting pressure and/or sintering regime (temperature and time) and/or mixing process (dry mixing and mechanical alloying). Characterisation investigations conducted on the sintered samples revealed that stearic acid as the binding agent resulted in the decrease of the relative density while mechanical alloying (MA) induced finer microstructures. The 78WC–16TiC–6Co composites manufactured from commercially available and laboratory produced TiC powders using similar process procedures (including MA) exhibited similar characteristics in terms of relative density, hardness, and wear performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::63ab89c5d87a6b6b07f271a6f8675af8 https://doi.org/10.1016/j.jeurceramsoc.2011.06.013 Zobrazit plný text záznamu Full Text from ScienceDirect