calcium phosphate

Effect of Microwave Sintering Temperature on Structure and Mechanical Properties of Hydroxyapatite Ceramics

The aim of the paper was to investigate features of microwave sintering of biogenic hydroxyapatite obtained for filling of various bone defects in medicine. The samples were prepared at high-temperature muffle furnace (1,5 kW, 2,45 GHz) at 800, 900, 1000 and 1100 С. It was established that increasing of microwave sintering temperature did not lead to a rapid increasing of grain size and agglomerate formation. The prepared materials have homogeneous fine-grained structure with average grain size 0,42–0,56 мm and average pore size is equal to 0,5 мm.