Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 94, Issue 3, Pages 742-748Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1551-2916.2010.04186.x
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Funding
- JSPS of Japan [20350099]
- World Premier International Research Center (WPI) Initiative, MEXT, Japan
- Grants-in-Aid for Scientific Research [20350099] Funding Source: KAKEN
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Highly textured Ti3SiC2 ceramic was successfully fabricated by slip casting in a 12 T strong magnetic field followed by spark plasma sintering. The optimized suspension parameters for slip casting were determined as 20 vol% Ti3SiC2 and 1.5 wt% polyethyleneimine dispersant of powder in deionized water. After texturing in the 12 T strong magnetic field and then cold isostatic pressing, the relative densities of green bodies were 51.4% and 63.8%, respectively. X-ray diffraction analysis revealed that the preferred orientation of Ti3SiC2 grains perpendicular to the magnetic field direction was along the c-axis. After sintering at 1100 degrees and 1000 degrees C under the pressure of 120 and 500 MPa, respectively, the relative density of Ti3SiC2 reached 88.2% and 98.6%. The Lotgering orientation factors on the textured top surface and textured side surface were determined as f((00l))=0.95 and f((hk0))=0.31, respectively. The textured microstructure contributed to the anisotropic mechanical property tested by Vickers indentation.
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