碩士 / 國立高雄應用科技大學 / 機械與精密工程研究所 / 101 / Hydroxyapatite (Ca10(PO4)6(OH)2, HA) is the nearest human bone calcium phosphate. In recent years, it is often used to replace human hard tissue. This study is to investigate the synthesis of hydroxyapatite preparation and mechanical properties of sintered analyzed. Using dicalcium phosphate dihydrate and fish scales as starting material to hydrolyzeand make HA powders. Calcination two powders, XRD and SEM images can be found in hydrolysis HA have NaCaPO4 phase, it inhibite the production of β-TCP; fish HA at high temperatures due to the phenomenon of thermal decomposition generating a phase β-TCP and CaO. Forming the powder to pellets, sintering at different temperature and measured mechanical properties. Hydrolysis HA at 1100℃ sintering temperature with max density. Fish HA at 1200℃ sintering temperature with max density, it only just reached hydrolysis HA at the sintering temperature of 800℃. The maximum bending stress of hydrolysis HA at sintering temperature 1100℃, it can be used to replace human bones. The sintering properties of fish HA in this study is not good, though not for the bone substitute, but can be used in the production of health food, toothpaste or use in bone defects and other non-stress areas of application.
| Identifer | oai:union.ndltd.org:TW/101KUAS0693008 |
| Date | January 2013 |
| Creators | Po-Wei Tu, 凃柏瑋 |
| Contributors | Ming-Hong Lin, 林明宏 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 91 |
Page generated in 0.0066 seconds