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INITIAL SINTERING KINETICS OF LITHIUM META TITANATE AT CONSTANT RATES OF HEATING
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نویسنده
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Abbasian A. R. ,Rahimipour M. R. ,Hamnabard Z.
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منبع
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iranian journal of materials science and engineering - 2013 - دوره : 10 - شماره : 3 - صفحه:44 -53
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چکیده
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In order to evaluate the sintering behavior of lithium meta titanate (li2tio3) powder, the shrinkage of powder compact was measured under constant rates of heating. densification curves for li2tio3 have been constructed with the help of shrinkage powder measured at different heating rates. the activation energy at the initial stage of sintering was determined by analyzing the densification curves and the value of q=377 kj/mol was obtained. the diffusion mechanism at the initial sintering stage was determined by the analytical method applied to the constant rates of heating data. this analysis exhibited that the dominant mechanism for initial sintering stage of li2tio3 is volume diffusion from grain boundary and surfaces.
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کلیدواژه
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sintering ,lithium meta titanate
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آدرس
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Nuclear Science and Technology Research Institute, Material Research School, ایران. materials and energy research center (merc), Ceramic Department, ایران, materials and energy research center (merc), Ceramic Department, ایران, Nuclear Science and Technology Research Institute, Laser and Optics Research School, ایران
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Authors
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