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N. D. PINCHUK, L. A. IVANCHENKO, and O. E. SYCH
«Investigation of Pores Formation and Volume Changes at Liquid Phase Sintering of Hydroxyapatite/Glass Composites »
PACS numbers: 61.43.Gt, 61.72.Qq, 81.05.Rm, 81.20.Ev, 82.70.Rr, 82.75.Fq, 87.85.J-
The process of pore formation and volume changes at liquid-phase sintering of two compositions of hydroxyapatite/glass composites with nanostructured-hydroxyapatite content of 40 and 60 wt.% is investigated. As revealed, the process of material foaming during heat treatment is the main cause of formation of complex porous composite structures. Macrochanges of surface and bulk of samples, which appear as a loss of their form and formation of bubbles, and microchanges with transformation of pore structure from opened to closed one take place in the process of foaming.