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Property Measurements and Solidification Studies by Electrostatic Levitation
Author(s) -
PARADIS PAULFRANÇOIS,
YU JIANDING,
ISHIKAWA TAKEHIKO,
YODA SHINICHI
Publication year - 2004
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1196/annals.1324.037
Subject(s) - levitation , crucible (geodemography) , materials science , ceramic , dielectric , spheres , mineralogy , nanotechnology , composite material , optoelectronics , mechanical engineering , chemistry , aerospace engineering , computational chemistry , engineering , magnet
A bstract : The National Space Development Agency of Japan has recently developed several electrostatic levitation furnaces and implemented new techniques and procedures for property measurement, solidification studies, and atomic structure research. In addition to the contamination‐free environment for undercooled and liquid metals and semiconductors, the newly developed facilities possess the unique capabilities of handling ceramics and high vapor pressure materials, reducing processing time, and imaging high luminosity samples. These are exemplified in this paper with the successful processing of BaTiO 3 . This allowed measurement of the density of high temperature solid, liquid, and undercooled phases. Furthermore, the material resulting from containerless solidification consisted of micrometer‐size particles and a glass‐like phase exhibiting a giant dielectric constant exceeding 100,000.