Production of boron carbide by carbothermal reduction of boron oxide and petroleum coke

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dc.contributor.author Amini, H.
dc.contributor.author Azarfar, M. A.
dc.contributor.author Dehcordi, H.
dc.contributor.author Malekpour, A.
dc.date.accessioned 2015-04-28T07:07:02Z
dc.date.available 2015-04-28T07:07:02Z
dc.date.issued 2010
dc.description.abstract Paper presented at the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July, 2010. en_ZA
dc.description.abstract Boron carbide, B4C, is the third hardest known material next to diamond and boron nitride. Reasonable cost of production, low density, and high chemical inertness makes boron carbide an attractive material for micro-electronic, military, space and medical applications. Boron has a high neutron absorption cross section and hence any compound containing boron, especially if it has a good mechanical strength, is of great interest in nuclear industry. Other properties of B4C make this compound to be highly used in nuclear reactor. Using reduction reaction of boron oxide by carbothermal process, B4C, free of impurities, was produced. Boron loss during the process, in the form of B202 gas; a common problem in B4C production, was minimized by adjusting the stoicheometry of feeding materials. Likewise, carbon residue was eliminated by taking appropriate composition at the starting point. The result of number of experiments showed that production of boron carbide is highly dependent on the phase change of reactant boron oxide from solid to liquid and from liquid to gaseous boron hypo-oxides and then the interaction with carbon and carbon monoxide.
dc.description.librarian ej2015 en_ZA
dc.format.extent 5 pages en_ZA
dc.format.medium PDF en_ZA
dc.identifier.citation Amini, H, Azarfar, MA, Dehcordi, H & Malekpour, A 2010, 'Production of boron carbide by carbothermal reduction of boron oxide and petroleum coke', Paper presented to the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July 2010. en_ZA
dc.identifier.uri http://hdl.handle.net/2263/44878
dc.language.iso en en_ZA
dc.publisher International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics en_ZA
dc.relation.ispartof HEFAT 2010 en_US
dc.rights University of Pretoria en_ZA
dc.subject Boron carbide en_ZA
dc.subject Carbothermal process en_ZA
dc.title Production of boron carbide by carbothermal reduction of boron oxide and petroleum coke en_ZA
dc.type Presentation en_ZA


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