Fabrication and Mechanical Properties of Nano-Al2O3 Based Composite Ceramic Tool Material
The Al2O3(nm)/SiC（μm）/Al2O3（μm）ceramic tool materials were fabricated by the hot-pressing technique. Effect of the compositions on microstructure and mechanical properties is investigated. With nano-particles content decreasing, the flexural strength increased and fine grains can be obtained. When the nano-alumina content is 60wt%, the grain of this sample is fine, the Vickers hardness and flexural strength are 16.24 GPa and 678 MPa, respectively.
Yun-Hae Kim, Prasad Yarlagadda, Xiaodong Zhang and Zhijiu Ai
X. Li et al., "Fabrication and Mechanical Properties of Nano-Al2O3 Based Composite Ceramic Tool Material", Advanced Materials Research, Vols. 335-336, pp. 736-739, 2011