PRODUCTION AND CHARACTERIZATION OF COBALT/VANADIUM BORIDE COMPOSITE POWDER BY MECHANOCHEMICAL METHOD AND ACID LEACHING

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SHARIFI HASSAN; RABIEI FARADONBEH SALMAN; ENAYATI MOHAMMAD HOSEIN

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Journal: Journal of Science and Technology of Composites Year:2017 | Volume:4 | Issue:1 Page(s): 75-82

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Title

PRODUCTION AND CHARACTERIZATION OF COBALT/VANADIUM BORIDE COMPOSITE POWDER BY MECHANOCHEMICAL METHOD AND ACID LEACHING

Author(s)

SHARIFI HASSAN | RABIEI FARADONBEH SALMAN | ENAYATI MOHAMMAD HOSEIN | Issue Writer Certificate

Keywords

MECHANOCHEMICAL PROCESSINGQ2

COMPOSITEQ2

COBALT -VANADIUM BORIDEQ2

SELF-PROGRESSIVE SYNTHESISQ2

Abstract

In this research, the production mechanism of VB-Co in situ nanocomposite powder from oxidized raw materials via mechanochemical method was studied. Regarding the adiabatic temperature of the chemical reaction, this reaction was occurred through self-progressive high-temperature synthesis or MSR. The mixed powder of raw materials (Co3O4, V2O5, B2O3 and Mg) were ground according to the stoichiometry reaction with the ratio (1: 1: 1: 12) using a high-energy planetary ball mill in an argon atmosphere in different times where the weight ratio of powder to the bullet was 1: 20. The produced COMPOSITE powder was evaluated by the X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). After grinding for 15 minutes, a burning occurred in the mill and regarding the X-ray diffraction, the phases Co-VB-MgO-VO2-Mg3 (BO3)2 were generated. Increasing the time of re-grinding and after burning for 30 minutes, the unwanted phase of Mg3 (BO3)2 was decomposed, the remaining vanadium oxide restored and the final reaction fully occurred. Regarding the results of XRD and the X-ray map analyses, MgO, which was the by-product of this reaction, was removed completely from the produced powder by hydrochloric acid at a concentration of 9. As the TEM image shows the COMPOSITE powder after the pickling process, the size of particles is around 20- 30 nm.

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APA: Copy

SHARIFI, HASSAN, RABIEI FARADONBEH, SALMAN, & ENAYATI, MOHAMMAD HOSEIN. (2017). PRODUCTION AND CHARACTERIZATION OF COBALT/VANADIUM BORIDE COMPOSITE POWDER BY MECHANOCHEMICAL METHOD AND ACID LEACHING. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), 4(1), 75-82. SID. https://sid.ir/paper/251758/en

Vancouver: Copy

SHARIFI HASSAN, RABIEI FARADONBEH SALMAN, ENAYATI MOHAMMAD HOSEIN. PRODUCTION AND CHARACTERIZATION OF COBALT/VANADIUM BORIDE COMPOSITE POWDER BY MECHANOCHEMICAL METHOD AND ACID LEACHING. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC)[Internet]. 2017;4(1):75-82. Available from: https://sid.ir/paper/251758/en

IEEE: Copy

HASSAN SHARIFI, SALMAN RABIEI FARADONBEH, and MOHAMMAD HOSEIN ENAYATI, “PRODUCTION AND CHARACTERIZATION OF COBALT/VANADIUM BORIDE COMPOSITE POWDER BY MECHANOCHEMICAL METHOD AND ACID LEACHING,” JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), vol. 4, no. 1, pp. 75–82, 2017, [Online]. Available: https://sid.ir/paper/251758/en

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