IDENTIFICATION OF UNDESIRABLE PHASES AND PURIFICATION BORON CARBIDE - SILICON CARBIDE NANOCOMPOSITE PREPARED BY MECHANICALLY ACTIVATED SHS

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ROGHANI MAMAQANI H.; TAYEBIFARD S.A.; KAZEMZADEH A.; NIKZAD L.

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Paper Information

Journal: JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES Year:2014 | Volume:3 | Issue:2 Page(s): 19-25

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Title

IDENTIFICATION OF UNDESIRABLE PHASES AND PURIFICATION BORON CARBIDE - SILICON CARBIDE NANOCOMPOSITE PREPARED BY MECHANICALLY ACTIVATED SHS

Author(s)

ROGHANI MAMAQANI H. | TAYEBIFARD S.A. | KAZEMZADEH A. | NIKZAD L. | Issue Writer Certificate

Keywords

PURIFICATIONQ3

SILICON CARBIDEQ2

BORON CARBIDEQ2

MECHANICAL ACTIVATED COMBUSTION SYNTHESISQ2

NANOCOMPOSITESQ2

ACID LEACHINGQ3

Abstract

Boron carbide - SILICON CARBIDE composite was produced by mechanically activated combustion synthesis (MASHS) method, in this study. Initially, raw materials powders containing B2O3, Si, C and Mg were weighed and were milled under Ar atmosphere by a planetary mill. For prepare pellets, the milled powders were pressed by uniaxial cold press and synthesis was occurred in atmosphere controlled tubal furnace. In the various steps, XRD analysis was taken to check the phases. XRD analysis used to calculate the average crystalline size and SEM and TEM analysis were taken to morphology studying. Resulting product is contains MgO, B4C and SiC. Also in the XRD analysis little chance existence of Mg2SiO4 or borate compounds of magnesium and remaining boron, carbon and silicon are outstanding. In order to remove or reduce undesired phases, ACID LEACHING by hydrochloric and mechanical activation with different energies were performed. The study of X-ray diffraction analysis after ACID LEACHING showed great influence of ACID LEACHING by HCl to remove impurities. It was also seen that remaining substances significantly reduced by activation energy increases. Average crystalline sizes of optimal sample were calculated by Scherrer equation by 11.09 for B4C and 12.66 for SiC. The SEM and TEM analysis confirmed synthesis of nano scale BORON CARBIDE - SILICON CARBIDE composite in nano scale. Grain size of about 30 nm was observed by TEM.

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APA: Copy

ROGHANI MAMAQANI, H., TAYEBIFARD, S.A., KAZEMZADEH, A., & NIKZAD, L.. (2014). IDENTIFICATION OF UNDESIRABLE PHASES AND PURIFICATION BORON CARBIDE - SILICON CARBIDE NANOCOMPOSITE PREPARED BY MECHANICALLY ACTIVATED SHS. JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES, 3(2), 19-25. SID. https://sid.ir/paper/252325/en

Vancouver: Copy

ROGHANI MAMAQANI H., TAYEBIFARD S.A., KAZEMZADEH A., NIKZAD L.. IDENTIFICATION OF UNDESIRABLE PHASES AND PURIFICATION BORON CARBIDE - SILICON CARBIDE NANOCOMPOSITE PREPARED BY MECHANICALLY ACTIVATED SHS. JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES[Internet]. 2014;3(2):19-25. Available from: https://sid.ir/paper/252325/en

IEEE: Copy

H. ROGHANI MAMAQANI, S.A. TAYEBIFARD, A. KAZEMZADEH, and L. NIKZAD, “IDENTIFICATION OF UNDESIRABLE PHASES AND PURIFICATION BORON CARBIDE - SILICON CARBIDE NANOCOMPOSITE PREPARED BY MECHANICALLY ACTIVATED SHS,” JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES, vol. 3, no. 2, pp. 19–25, 2014, [Online]. Available: https://sid.ir/paper/252325/en

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