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sintering behavior of lithium meta titanate nanocrystallites
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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 - 2019 - دوره : 16 - شماره : 4 - صفحه:43 -52
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چکیده
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In this work, lithium meta titanate (li2tio3) nanocrystallites were synthesized by hydrothermal method and subsequent heat treatment. the shrinkage of the powder compact was measured under constant heating rate in order to study the sintering behavior of the synthesized powders. densification curves of the synthesized powders were also constructed via the dilatometry analysis and evaluated at several heating rates. two separate methods of analytical procedure and master curve sintering were employed to determine the activation energy of the initial sintering stage. the activation energy values were estimated based on these two distinct methods as 229 ±14 and 230 kj/mol respectively, consistenting with each other. moreover, surface diffusion was determined as the dominant mechanism of densification on initial sintering of li2tio3 nanocrystallites.
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کلیدواژه
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tritium breeding ,sintering ,activation energy ,nano ,dilatometry ,li2tio3 nanocrystallites
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آدرس
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university of sistan and baluchestan, faculty of engineering, department of materials engineering, iran, materials and energy research center, ceramic department, iran, nuclear science and technology research institute (nstri), materials and nuclear fuel research school, iran
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پست الکترونیکی
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zhamnabard@nrcam.org
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Authors
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