Sinterability of calcium phosphate through rapid sintering

Natasha, A.N. and Ramesh, S. and Tan, C.Y. and Bang, L.T. (2021) Sinterability of calcium phosphate through rapid sintering. In: International Laser Technology and Optics Symposium in Conjunction with Photonics Meeting 2020, ILATOSPM 2020, 22-23 October 2020, Johor.

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Abstract

Development of dense nanostructured hydroxyapatite (HA) with the major concern to enhance densification while limiting its grain growth has received great demand. This is due to inherent brittleness and lower mechanical strength of HA ceramic. A promising way to obtain this could be a fabrication of nanostructured HA materials through rapid sintering process. In this work, eggshell derived hydroxyapatite powder has been prepared via solid state route and its sinterability was investigated through microwave sintering (1000-1250 C). The phase stability, microstructural evolution, relative density and hardness of the microwave sintered HA were reflected. The results indicate that the rapid sintering regime has been successfully employed with pure HA phase stability remained up to 1200 C and the relative density and hardness increase with increase in sintering temperature. On top of that, the result also showed good correlation of grain size and mechanical properties of HA and supported that microwave sintering did not promote extensive grain growth of HA. © Published under licence by IOP Publishing Ltd.

Item Type: Conference or Workshop Item (Paper)
Funders: None
Uncontrolled Keywords: Good correlations; Hardness increase; Hydroxyapatite powder; Microwave sintering; Nanostructured hydroxyapatite; Relative density; Sintering temperatures; Solid-state routes
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering > Department of Mechanical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 17 Oct 2024 07:41
Last Modified: 17 Oct 2024 07:41
URI: http://eprints.um.edu.my/id/eprint/35861

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