کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1766860 1020167 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experiments in materials science on the ground and in reduced gravity using electrostatic levitators
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم فضا و نجوم
پیش نمایش صفحه اول مقاله
Experiments in materials science on the ground and in reduced gravity using electrostatic levitators
چکیده انگلیسی

To counter residual accelerations, dedicated levitators or positioners are necessary to support a host of materials science experiments on the ground and in microgravity. All levitators (e.g., aerodynamic, acoustic, electromagnetic, electrostatic, optical) have their own merits and limitations but the electrostatic scheme offers the combined advantages of processing millimeter-size objects, independent heating, quasi-spherical shape of molten materials, handling of materials under extreme temperatures for hours, virtually convection-free samples, and wide view around the samples for diagnostic. These attributes provide unique research opportunities in materials science on the ground as well as under reduced gravity. In particular, electrostatic levitators are very attractive to measure the physical and structural properties of equilibrium and non-equilibrium liquids, to synthesize multi-function materials, and to understand metastable phase formation, vitrification, and diffusion. In this paper, research and development carried out by the Japan Aerospace Exploration Agency over the years in the field of electrostatic levitation are summarized and the main results obtained in materials science are presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 41, Issue 12, 2008, Pages 2118–2125
نویسندگان
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