Abstract
The effects of the addition of CeB6 on the densification and the mechanical properties of TiB2 – CeB6 composites (TCB) under the hot-pressing conditions were described. The TCB with cerium hexaboride content of 10 to 90 volume percent CeB6 were synthesized. The TCB is inexpensive and can be fabricated by a hotpressing sintering process. Addition of CeB6 and the formation of the solid-solution improved the mechanical properties of TCB. Especially, TiB2 – 30 % CeB6 composite had a bending strength of about 830 MPa and the micro-Vickers hardness of 30.5 GPa.
