Kesan penambahan magnesia dan zirkonia terhadap sifat kebioaktifan dan kekuatan mampatan β-wolastonit yang disintesis daripada kulit telur

Translated title of the contribution: The effects of magnesia and zirconia addition on bioactivity and compressive strength properties of β-wollastonite synthesized from eggshells

Hamisah Ismail, Nurul Fitrah Mohd Fadzil, Roslinda Shamsudin, Muhammad Azmi Abdul Hamid

Research output: Contribution to journalArticle

Abstract

This study examines the effects of magnesia (MgO) and zirconia (ZrO2) addition on the bioactivity and compressive strength properties of β-wollastonite. Calcium oxide (CaO) that was obtained from egg shells and silica (SiO2) that was obtained from rice husk ash were mixed using a CaO:SiO2 ratio of 45:55 with deionized water and put into an autoclave at 135°C for 8 h to produce β-wollastonite. The compositions used in this study were 90 to 95 wt. % of β-wollastonite, with 5 to 10 wt. % of MgO and ZrO2. Phase, morphological, elemental, and pH changes for each composition during the 7 day bioactivity test were reviewed and explained using XRD, SEM/EDX, and pH. After 7 days of immersion, all samples, namely, 100 wt. % β-wollastonite, 90 wt. % β-wollastonite-10 wt. % MgO, 90 wt. % β-wollastonite-10 wt. % ZrO2, and 90 wt. % β-wollastonite-5 wt. %-MgO-5 wt. % ZrO2 showed decreasing peaks of the β-wollastonite (β-CaSiO3) and found that hydroxyapatite (HA) phase peak was also detected. The morphology of all the samples had evolved from a spherical form on the first day of the immersion to a glassy thin layer of amorphous calcium phosphate (ACP) on the seventh day of soaking. β-wollastonite samples with 5 wt. % MgO-5 wt. % ZrO2 showed the best compression strength compared to other composites. β-wollastonite samples with 5 wt. % MgO - 5 wt. % ZrO2 were found to be suitable as alternative substances for bone replacement because they are bioactive and have good compression strength.

Original languageMalay
Pages (from-to)1519-1527
Number of pages9
JournalSains Malaysiana
Volume48
Issue number7
DOIs
Publication statusPublished - 1 Jan 2019

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Magnesium Oxide
Egg Shell
Compressive Strength
Immersion
zirconium oxide
calcium silicate
Durapatite
Silicon Dioxide

ASJC Scopus subject areas

  • General

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Kesan penambahan magnesia dan zirkonia terhadap sifat kebioaktifan dan kekuatan mampatan β-wolastonit yang disintesis daripada kulit telur. / Ismail, Hamisah; Mohd Fadzil, Nurul Fitrah; Shamsudin, Roslinda; Abdul Hamid, Muhammad Azmi.

In: Sains Malaysiana, Vol. 48, No. 7, 01.01.2019, p. 1519-1527.

Research output: Contribution to journalArticle

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abstract = "This study examines the effects of magnesia (MgO) and zirconia (ZrO2) addition on the bioactivity and compressive strength properties of β-wollastonite. Calcium oxide (CaO) that was obtained from egg shells and silica (SiO2) that was obtained from rice husk ash were mixed using a CaO:SiO2 ratio of 45:55 with deionized water and put into an autoclave at 135°C for 8 h to produce β-wollastonite. The compositions used in this study were 90 to 95 wt. {\%} of β-wollastonite, with 5 to 10 wt. {\%} of MgO and ZrO2. Phase, morphological, elemental, and pH changes for each composition during the 7 day bioactivity test were reviewed and explained using XRD, SEM/EDX, and pH. After 7 days of immersion, all samples, namely, 100 wt. {\%} β-wollastonite, 90 wt. {\%} β-wollastonite-10 wt. {\%} MgO, 90 wt. {\%} β-wollastonite-10 wt. {\%} ZrO2, and 90 wt. {\%} β-wollastonite-5 wt. {\%}-MgO-5 wt. {\%} ZrO2 showed decreasing peaks of the β-wollastonite (β-CaSiO3) and found that hydroxyapatite (HA) phase peak was also detected. The morphology of all the samples had evolved from a spherical form on the first day of the immersion to a glassy thin layer of amorphous calcium phosphate (ACP) on the seventh day of soaking. β-wollastonite samples with 5 wt. {\%} MgO-5 wt. {\%} ZrO2 showed the best compression strength compared to other composites. β-wollastonite samples with 5 wt. {\%} MgO - 5 wt. {\%} ZrO2 were found to be suitable as alternative substances for bone replacement because they are bioactive and have good compression strength.",
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AB - This study examines the effects of magnesia (MgO) and zirconia (ZrO2) addition on the bioactivity and compressive strength properties of β-wollastonite. Calcium oxide (CaO) that was obtained from egg shells and silica (SiO2) that was obtained from rice husk ash were mixed using a CaO:SiO2 ratio of 45:55 with deionized water and put into an autoclave at 135°C for 8 h to produce β-wollastonite. The compositions used in this study were 90 to 95 wt. % of β-wollastonite, with 5 to 10 wt. % of MgO and ZrO2. Phase, morphological, elemental, and pH changes for each composition during the 7 day bioactivity test were reviewed and explained using XRD, SEM/EDX, and pH. After 7 days of immersion, all samples, namely, 100 wt. % β-wollastonite, 90 wt. % β-wollastonite-10 wt. % MgO, 90 wt. % β-wollastonite-10 wt. % ZrO2, and 90 wt. % β-wollastonite-5 wt. %-MgO-5 wt. % ZrO2 showed decreasing peaks of the β-wollastonite (β-CaSiO3) and found that hydroxyapatite (HA) phase peak was also detected. The morphology of all the samples had evolved from a spherical form on the first day of the immersion to a glassy thin layer of amorphous calcium phosphate (ACP) on the seventh day of soaking. β-wollastonite samples with 5 wt. % MgO-5 wt. % ZrO2 showed the best compression strength compared to other composites. β-wollastonite samples with 5 wt. % MgO - 5 wt. % ZrO2 were found to be suitable as alternative substances for bone replacement because they are bioactive and have good compression strength.

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