Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 30, Issue 15, Pages 3253-3258Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2010.06.006
Keywords
Hafnium boride; Spark plasma sintering; Microstructure; Mechanical properties
Categories
Ask authors/readers for more resources
HfB2-based composites containing 3 vol% silicides of molybdenum or tantalum as sintering additives are densified by spark plasma sintering at 1900-2000 degrees C. Mechanical properties are measured up to 1500 degrees C in air. 4-pt Flexural strength values at 1500 degrees C are 480 MPa (64% of the RT value) for the MoSi2-doped composite and 290 MPa (49% of the RT value) for the TaSi2-doped composite. The fracture toughness is insensitive to the temperature change and reaches 5 MPa m(1/2) for the TaSi2-doped ceramic. (C) 2010 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available