EFFECT OF PROCESSING PARAMETERS ON THE MICROSTRUCTURE AND MECHANICAL BEHAVIOUR OF NANO BIOCERAMIC

摘要

The processing parameters engineered the microstructure of SCPC and optimized its mechanical properties to be comparable to that of bone. The increase in the sintering temperature or in the compact pressure significantly modified the grain size and the crystalline structure of SCPC. The increase in the grain size is attributed to the enhanced atomic diffusion at the grain boundaries. At higher compact pressure, the atomic diffusion was facilitated at the grain boundaries and resulted in partial melting of the silica phase. In conjunction with the modification of the phase structure, the comprcssive strength and modulus of elasticity of the material significantly decrease.