The effect of titanium oxide and hydroxyapatite on the mechanical properties of wollastonite

被引:2
作者
Ragurajan, D. [1 ]
Satgunam, M. [1 ]
Golieskardi, M. [1 ]
Sankar, U. [1 ]
Ng, Angela Min Hwei [2 ]
机构
[1] Univ Tenaga Nas, Fac Engn, Dept Mech Engn, Ctr Adv Mat, Kajang, Selangor, Malaysia
[2] Univ Kebangsaan Malaysia, Med Ctr, Tissue Engn Ctr, Kuala Lumpur, Malaysia
来源
COGENT ENGINEERING | 2019年 / 6卷 / 01期
关键词
Mechanical properties; wollastonite; microstructural evaluation; IN-VITRO BIOCOMPATIBILITY; COATINGS;
D O I
10.1080/23311916.2019.1662163
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of incorporation of titanium oxide (TiO2) and hydroxyapatite (HA) on the mechanical properties of wollastonite (CaSiO3) was investigated in this study. TiO2/CaSiO3/HA composites were prepared and characterized by means of physical and mechanical properties. Morphology analysis revealed that the wollastonite composite possesses a rough surface. Moreover, the addition of TiO2 and HA to wollastonite was evaluated by means of bulk density and Vickers Hardness. The wollastonite composites containing TiO2 (10-30 wt%) and HA (20-40 wt%) were sintered between 1230 degrees C and 1270 degrees C, with a ramp rate of 10 degrees C/min and a holding time of 2 h. The results indicated that the additives played a significant part in enhancing the physical and mechanical properties of the composite wollastonite in comparison to the pure wollastonite, particularly in composites containing higher percentage of TiO2 (25-30 wt%) and lower HA (20-25 wt%). Furthermore, the results obtained from the XRD analysis revealed that the newly formed apatite particles on the surface of the wollastonite composite were comprise of superfine crystalline and/or defective structure grains.
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页数:7
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