Synthesis of nano-structured sphene and mechanical properties optimization of its scaffold via response surface methodology

Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_JMATPR-4-2_006

تاریخ نمایه سازی: 12 مهر 1400

Abstract:

Nano-structured sphene (CaTiSiO۵) powder was synthesized via mechanical activation and heat treatment method. The synthesized powder was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and simultaneous thermal analysis (STA). The sphene scaffolds were then fabricated via porogen method (using citric acid). Response surface methodology was successfully used to determine the effects of d (particle size) and %V porogen (volume percent of porogen) on the mechanical behavior of the prepared sphene scaffolds. Moreover, a suitable mathematical model for describing the relationship between the factors (d and %V porogen) and the response (compressive strength) was statistically developed. The use of porogen in the synthesis procedure can change the porosity value of the final scaffold; thus, the compressive strength of the sphene scaffolds varied widely. Statistical analysis results predicted that the maximum value of the compressive strength can be obtained at the following conditions: %V = ۲۵% and d = ۲۵۰ µm. At these conditions, the prepared scaffolds possess a compressive strength value as high as ۷ MPa.

Authors

Amirmostafa Amirjani

Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran

Masoud Hafezi

Nanotechnology and Advanced Materials Division, Materials and Energy Research Center, Iran

Ali Zamanian

Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Alborz, Iran.

Mana Yasaee

Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.

Noor Azuan Abu Osman

Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia.

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