High-Pressure B-Type Polymorphs of Some Rare-Earth Sesquioxides
- 27 November 1964
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 146 (3648), 1163-1164
- https://doi.org/10.1126/science.146.3648.1163
Abstract
New high pressure forms of the sesquioxides of holminum, erbium, thulium, ytterbium, lutetium, and yttrium have been obtained by exposure of the C-type sesquioxides to pressures between 25 and 40 kilobars and temperatures between 900° and 1020°C. X-ray diffraction analysis shows that these new high-pressure phases are of the monoclinic B-type which is known for several of the lighter rare-earth sesquioxides (samarium through dysprosium).Keywords
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