Effect of nano silica on the sinterability of hydroxyapatite dense bodies

The effects of adding a small amount of nano silica in hydroxyapatite (HA) on the sinterability and mechanical properties of hydroxyapatite were studied. The starting HA powder was synthesized using a novel wet chemical precipitation method. Different amount of silica powder was mechanically mixe...

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Main Authors:	Ranna, Tolouei, C.Y., Tan, S., Ramesh, Iis, Sopyan, W.D., Teng
Format:	Article
Language:	English
Published:	Trans Tech Publications, Switzerland 2011
Subjects:	TS Manufactures
Online Access:	http://irep.iium.edu.my/11867/ http://irep.iium.edu.my/11867/ http://irep.iium.edu.my/11867/ http://irep.iium.edu.my/11867/4/AMR.264-265.pg1832_2_irep_ID11867.pdf

id	iium-11867
recordtype	eprints
spelling	iium-118672013-09-01T12:42:50Z http://irep.iium.edu.my/11867/ Effect of nano silica on the sinterability of hydroxyapatite dense bodies Ranna, Tolouei C.Y., Tan S., Ramesh Iis, Sopyan W.D., Teng TS Manufactures The effects of adding a small amount of nano silica in hydroxyapatite (HA) on the sinterability and mechanical properties of hydroxyapatite were studied. The starting HA powder was synthesized using a novel wet chemical precipitation method. Different amount of silica powder was mechanically mixed with the synthesized HA. The green samples were subsequently cold isostatically pressed at 200 MPa. Sintering in air was accomplished by firing the green samples at temperatures ranging from 1050°C to 1250°C. Sintered samples were analyzed to determine phase composition and mechanical properties. The XRD analysis revealed that with increasing the amount of silica in the HA powder, decomposition of HA to TCP occurred at sintering temperature higher than 1050°C. The bulk density of all silica-doped samples decreased through the temperature range studied. In agreement with the bulk density trend, the increasing silica additives in HA depleted the Young’s modulus and Vickers hardness of the HA body. The study revealed that the addition of silica have an adverse effect on the sintered properties of hydroxyapatite bioceramics. Trans Tech Publications, Switzerland 2011-06-30 Article PeerReviewed application/pdf en http://irep.iium.edu.my/11867/4/AMR.264-265.pg1832_2_irep_ID11867.pdf Ranna, Tolouei and C.Y., Tan and S., Ramesh and Iis, Sopyan and W.D., Teng (2011) Effect of nano silica on the sinterability of hydroxyapatite dense bodies. Advanced Materials Research, 2634-5. pp. 1832-1838. ISSN 1022-6680 http://www.scientific.net/AMR 10.4028/www.scientific.net/AMR.264-265.1832
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TS Manufactures
spellingShingle	TS Manufactures Ranna, Tolouei C.Y., Tan S., Ramesh Iis, Sopyan W.D., Teng Effect of nano silica on the sinterability of hydroxyapatite dense bodies
description	The effects of adding a small amount of nano silica in hydroxyapatite (HA) on the sinterability and mechanical properties of hydroxyapatite were studied. The starting HA powder was synthesized using a novel wet chemical precipitation method. Different amount of silica powder was mechanically mixed with the synthesized HA. The green samples were subsequently cold isostatically pressed at 200 MPa. Sintering in air was accomplished by firing the green samples at temperatures ranging from 1050°C to 1250°C. Sintered samples were analyzed to determine phase composition and mechanical properties. The XRD analysis revealed that with increasing the amount of silica in the HA powder, decomposition of HA to TCP occurred at sintering temperature higher than 1050°C. The bulk density of all silica-doped samples decreased through the temperature range studied. In agreement with the bulk density trend, the increasing silica additives in HA depleted the Young’s modulus and Vickers hardness of the HA body. The study revealed that the addition of silica have an adverse effect on the sintered properties of hydroxyapatite bioceramics.
format	Article
author	Ranna, Tolouei C.Y., Tan S., Ramesh Iis, Sopyan W.D., Teng
author_facet	Ranna, Tolouei C.Y., Tan S., Ramesh Iis, Sopyan W.D., Teng
author_sort	Ranna, Tolouei
title	Effect of nano silica on the sinterability of hydroxyapatite dense bodies
title_short	Effect of nano silica on the sinterability of hydroxyapatite dense bodies
title_full	Effect of nano silica on the sinterability of hydroxyapatite dense bodies
title_fullStr	Effect of nano silica on the sinterability of hydroxyapatite dense bodies
title_full_unstemmed	Effect of nano silica on the sinterability of hydroxyapatite dense bodies
title_sort	effect of nano silica on the sinterability of hydroxyapatite dense bodies
publisher	Trans Tech Publications, Switzerland
publishDate	2011
url	http://irep.iium.edu.my/11867/ http://irep.iium.edu.my/11867/ http://irep.iium.edu.my/11867/ http://irep.iium.edu.my/11867/4/AMR.264-265.pg1832_2_irep_ID11867.pdf
first_indexed	2023-09-18T20:21:07Z
last_indexed	2023-09-18T20:21:07Z
_version_	1777408113635229696

Effect of nano silica on the sinterability of hydroxyapatite dense bodies

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