In situ platelet-toughened TiB2–SiC composites prepared by reactive pulsed electric current sintering
作者： Songlin Ran , Omer Van der Biest , Jef Vleugels
DOI: 10.1016/J.SCRIPTAMAT.2011.03.015
关键词:
摘要: Partially textured TiB2–SiC composites were prepared by reactive pulsed electric current sintering of attrition-milled TiH2–B–SiC–B4C powder mixtures. Plate-like TiB2 grains, formed in situ with their elongated direction perpendicular to the pressing direction, improved both strength and fracture toughness composites. The 20–30 vol.% SiC combined a three-point flexural 625–695 MPa Vickers hardness 21.1–23.5 GPa 5.7–7.3 MPa m1/2.
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