TY - JOUR
T1 - In situ reaction synthesis of Ti-TiB composites containing high volume fraction of TiB by spark plasma sintering process
AU - Zhang, Zhao Hui
AU - Shen, Xiang Bo
AU - Wen, Sai
AU - Luo, Jie
AU - Lee, Shu Kui
AU - Wang, Fu Chi
PY - 2010/7/30
Y1 - 2010/7/30
N2 - The in situ toughened Ti-TiB ceramic-matrix composites containing high volume fraction of TiB were synthesized by spark plasma sintering technique under a pressure of 50 MPa, with sintering temperature ranging from 1100 °C to 1400 °C and heating rate of 150 °C/min, using Ti and TiB2 powders. Results indicated that Ti-TiB composites sintered at 1400 °C provided the optimal combination of dense microstructure, well developed lath-shaped TiB grains, and excellent mechanical properties, including the relative density of 99.6%, bending strength of 608 MPa, and a rather high fracture toughness of 9.35 MPa m1/2. Moreover, the micro-hardness of the composites reaches a relatively high level (18.3 GPa).
AB - The in situ toughened Ti-TiB ceramic-matrix composites containing high volume fraction of TiB were synthesized by spark plasma sintering technique under a pressure of 50 MPa, with sintering temperature ranging from 1100 °C to 1400 °C and heating rate of 150 °C/min, using Ti and TiB2 powders. Results indicated that Ti-TiB composites sintered at 1400 °C provided the optimal combination of dense microstructure, well developed lath-shaped TiB grains, and excellent mechanical properties, including the relative density of 99.6%, bending strength of 608 MPa, and a rather high fracture toughness of 9.35 MPa m1/2. Moreover, the micro-hardness of the composites reaches a relatively high level (18.3 GPa).
KW - Ceramic-matrix composites
KW - Mechanical properties
KW - Microstructure
KW - Spark plasma sintering
UR - https://www.scopus.com/pages/publications/77955306459
U2 - 10.1016/j.jallcom.2010.04.218
DO - 10.1016/j.jallcom.2010.04.218
M3 - Article
AN - SCOPUS:77955306459
SN - 0925-8388
VL - 503
SP - 145
EP - 150
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - 1
ER -