Title :
Mechanical properties of binderless tungsten carbide by spark plasma sintering
Author :
Kim, H.T. ; Kim, J.S. ; Kwon, Y.S.
Author_Institution :
Sch. of Mater. Sci. & Eng., Ulsan Univ., South Korea
fDate :
26 June-2 July 2005
Abstract :
Densification behavior and mechanical properties of binderless WC spark plasma sintered at 1873∼2123K for 0∼30min under 50MPa were investigated. Shrinkage of powder compact started at ∼1373K and sintered density increased markedly with increasing sintering temperatures. Specimens sintered at 2023K for 10min were almost fully dense and showed fine-grained structure. As a result of this improvement in density, mechanical properties, such as hardness and strength, were enhanced remarkably. The fracture toughness of samples was in the range of 4.3∼6MPa m12/.
Keywords :
mechanical properties; plasma materials processing; powder technology; shrinkage; sintering; tungsten alloys; 10 min; 2023 K; 50 MPa; WC; binderless tungsten carbide; densification behavior; mechanical property; powder compact; shrinkage; spark plasma sintering; Corrosion; Immune system; Mechanical factors; Optical wavelength conversion; Plasma density; Plasma materials processing; Plasma properties; Plasma temperature; Sparks; Tungsten;
Conference_Titel :
Science and Technology, 2005. KORUS 2005. Proceedings. The 9th Russian-Korean International Symposium on
Print_ISBN :
0-7803-8943-3
DOI :
10.1109/KORUS.2005.1507757
