Comparison of hydroxyapatite ceramics and hydroxyapatite/borosilicate glass composites prepared by slip casting
Borosilicate glass powder with a softening point of 821 degrees Celsius was prepared by crushing Pyrex® borosilicate glass fragments. Hydroxyapatite(HA) ceramics and HA/borosilicate glass (50 wt.%) composites were prepared by slip casting. The influence of borosilicate glass on the densification and phase change of hydroxyapatite was studied over sintering temperatures from 500 to 1200 degrees Celsius. It was found that the borosilicate glass inhibited the decomposition of HA phase and enhanced the densification of the composites. When the sintering temperature was higher than 1100 degrees Celsius, the glass liquid flowed away from the sample surface and was trapped inside the sample, leading to a structure of a relatively strong and dense HA/glass core and a bioactive and porous HA surface layer.
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|Item Type:||Journal Article|
|Additional Information:||For more information, please refer to the journal’s website (see link) or contact the author. Author contact details: firstname.lastname@example.org|
|Keywords:||Composite, Hydroxyapatite, Borosilicate glass, Slip casting, Coating|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomaterials (090301)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 2004 Elsevier|
|Deposited On:||20 Apr 2007|
|Last Modified:||29 Feb 2012 13:28|
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