Mechanical and microstructure of reinforced hydroxyapatite/calcium silicate nano-composites materials

Beheri, Hanan H.; Mohamed, Khaled R.; El‐Bassyouni, Gehan T.

doi:10.1016/j.matdes.2012.08.020

Cited by 50 publications

(23 citation statements)

References 36 publications

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“…Reports emphasize that calcium silicate is one of the most versatile, functional filler with unique properties which can enhance the performance of plastics, paints and coatings, construction, friction and ceramic materials, as well as in metallurgical applications . Though ceramic materials possess high compressive strength, CaSiO 3 ceramics which are used in these applications are unfortunately very brittle and poor in tensile and torsional properties .…”

Section: Introductionmentioning

confidence: 99%

Effect of reinforcement of sustainable β‐CaSiO₃ nanoparticles in bio‐based epoxy resin system

Tiimob

Rangari

Jeelani

2014

J of Applied Polymer Sci

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The b-CaSiO 3 nanoparticles (NPs) were prepared using calcium carbonate from egg shells and silica as precursors. These NPs were incorporated (1-4 wt %) into bio-based epoxy resin to fabricate nanocomposites. Thermal and mechanical tests were carried out on these composites. The results of dynamic mechanical analysis showed significant improvement in the storage modulus of 1 and 2 wt % composites. The thermomechanical analysis data revealed 19 and 20% of reduction in coefficient of thermal expansion for 1 wt % of CaSiO 3 before and after glass transition as compared to the neat epoxy system. Thermogravimetric analysis results also showed delayed thermal degradation of the composites by significant amounts (17-35 C) for 5% of decomposition, a proportional increase in residues corresponding to the loading concentrations. The flexure tests showed significant improvements in strength (17-36%), modulus (5-33%), and toughness for 1-4 wt % of reinforcement of b-CaSiO 3 NPs. Theoretical calculations of the reinforcement effect on the flexure modulus of the composites agree well with the experimental values. The scanning electron micrograph of the fractured surfaces revealed better interfacial interactions in the composites and enhancements in crack path deflections over the neat specimen.

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Section: Introductionmentioning

confidence: 99%

Effect of reinforcement of sustainable β‐CaSiO₃ nanoparticles in bio‐based epoxy resin system

Tiimob

Rangari

Jeelani

2014

J of Applied Polymer Sci

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“…Among the biomaterials of bone scaffolds [10][11][12][13], β-tricalcium phosphate (β-TCP) has received much attention due to good biocompatibility and osteoconductive capability [10,12,13]. Unfortunately, its applications in the hard tissue engineering are strictly restricted due to their unsatisfactory mechanical performances.…”

Section: Introductionmentioning

confidence: 99%

Selective laser sintering of β-TCP/nano-58S composite scaffolds with improved mechanical properties

et al. 2015

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“…Due to its bioactive properties, wollastonite is used to obtain calcium phosphate compositions, composites with polymers, and a coating for metal implants [16][17][18][19]. The introduction of wollastonite into hydroxyapatite ceramics or ceramized glass highly improves the mechanical properties of the material [14,20].…”

Section: Introductionmentioning

confidence: 99%

Structure and Properties of Ceramics Based on Monetite and Nanodispersed Silica

Sych

Pinchuk

Pasichnyi

et al. 2015

Powder Metall Met Ceram

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Calcium-phosphate ceramics based on monetite and nanosized silica are produced by sintering at 500C. It is established that phase changes and solid-phase reactions occur during sintering to form ceramics that contain -calcium pyrophosphate (Ca 2 P 2 O 7 ), calcium silicate (wollastonite, CaSiO 3 ), and insignificant amount of -tricalcium phosphate (Ca 3 (PO 4 ) 2 ). It is shown that the addition of silica inhibits re-crystallization of calcium pyrophosphate into tricalcium phosphate, if compared with ceramics prepared from monetite with no silica added. It is established that increasing the silica content in the starting composition leads to a decrease in the minimum pore size from 0.83 to 0.21 m. Highly pure nanosized silica (content of SiO 2 > 99%) prepared by heat-treating of silicon carbide waste in a solar furnace is used in our research. The porosity of ceramics produced reaches 43.5-46.8% and the compressive strength is 16-24 MPa.

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Mechanical and microstructure of reinforced hydroxyapatite/calcium silicate nano-composites materials

Cited by 50 publications

References 36 publications

Effect of reinforcement of sustainable β‐CaSiO₃ nanoparticles in bio‐based epoxy resin system

Effect of reinforcement of sustainable β‐CaSiO₃ nanoparticles in bio‐based epoxy resin system

Selective laser sintering of β-TCP/nano-58S composite scaffolds with improved mechanical properties

Structure and Properties of Ceramics Based on Monetite and Nanodispersed Silica

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Mechanical and microstructure of reinforced hydroxyapatite/calcium silicate nano-composites materials

Cited by 50 publications

References 36 publications

Effect of reinforcement of sustainable β‐CaSiO3 nanoparticles in bio‐based epoxy resin system

Effect of reinforcement of sustainable β‐CaSiO3 nanoparticles in bio‐based epoxy resin system

Selective laser sintering of β-TCP/nano-58S composite scaffolds with improved mechanical properties

Structure and Properties of Ceramics Based on Monetite and Nanodispersed Silica

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Product

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Effect of reinforcement of sustainable β‐CaSiO₃ nanoparticles in bio‐based epoxy resin system

Effect of reinforcement of sustainable β‐CaSiO₃ nanoparticles in bio‐based epoxy resin system