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Data on Materials Science Discussed by Researchers at Iran University of Science and Technology

February 25, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- New research on Materials Science is the subject of a report. According to news reporting from Tehran, Iran, by VerticalNews journalists, research stated, "In this study, Cr2Nb-20 vol.% Al2O3 nanocomposite was prepared successfully by mechanochemical reaction between Al, Nb and Cr2O3 powders. Amorphization of powder occurred during mechanical alloying because of high energy collisions between powders and steel balls in milling container which transfer high degree of energy to powders."

The news correspondents obtained a quote from the research from the Iran University of Science and Technology, "Therefore, annealing was needed to form crystalline phases. The influence of different mechanical alloying parameters such as BPR, rotating speed, milling time and PCA concentration on synthesis of composite material were investigated. After mechanical alloying, the powder was en-capsulated in quartz and then annealed at 1100 degrees C for 3 h. After annealing, 3 different phases were appeared (Cr2Nb (cubic), Cr2Nb (hexagonal) and alpha-Al2O3)."

According to the news reporters, the research concluded: "The structural changes of powder particles during mechanical alloying were studied by X-ray diffractometry (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM)."

For more information on this research see: Study the effect of mechanical alloying parameters on synthesis of Cr2Nb-Al2O3 nanocomposite. Materials Research Bulletin, 2014;49():50-57. Materials Research Bulletin can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier -; Materials Research Bulletin -

Our news journalists report that additional information may be obtained by contacting P. Shayesteh, Iran Univ Sci & Technol, Sch Met & Mat Sci Engn, Tehran 1684613114, Iran. Additional authors for this research include S. Mirdamadi and H. Razavi.

Keywords for this news article include: Iran, Asia, Tehran, Materials Science

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Source: Journal of Technology

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