Printer Friendly

A solid look at xenon.

Normally it takes a very low temperature or a high pressure to solidify an inert gas like argon or xenon. This constraint, however, can be overcome by using a beam of inert-gas ions to irradiate an aluminum film. The resulting film contains small "bubbles" of solid xenon or argon trapped in an aluminum matrix. In this form, rare gas solids can be studied using high-resolution electron microscopy, as reported in the Dec. 13 SCIENCE.

The technique makes it possible to detect and measure lattice characteristics of individual bubbles less than 8 nanometers across, say Stephen E. Donnelly and Christopher J. Rossouw of the Commonwealth Scientific and Industrial Research Organization in Clayton, Australia. Information about crystal defects within the bubbles themselves also becomes available.

An analysis of 130 solid xenon bubbles revealed that, in general, the tiny embedded crystals are faceted but often irregular in shape. A number of images hint that the crystals look somewhat like truncated octahedra. Many bubbles show a high degree of crystalline perfection.
COPYRIGHT 1985 Science Service, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1985, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Science News
Date:Dec 14, 1985
Words:167
Previous Article:Not tonight, dear, I'll have a headache.
Next Article:The texture of clinging proteins.
Topics:


Related Articles
If not now, when?
OXiGENE Abstracts Published in ASCO Program.
COMFORT FOOD WITH FLAIR AT BLAIR'S.
BOX OFFICE BUZZ KNOCKOUT MOVIE FARE ON HIATUS.
ZIO-301 (Indibulin) Interim Phase I Data Presented at ASCO.
ARIAD Presents Positive Efficacy Data On AP23573, Novel mTOR Inhibitor, in Phase 2 Metastatic Endometrial Cancer Trial.
Hi-Tech Pharmacal to Present at the FTN Midwest Securities Health Care Conference.
Applied Biosystems Announces Early-Access Program For Its Next-Generation Sequencing Platform.
EarthFirst Technologies Signs Memorandum of Understanding with Ultra Green Energy for Channahon Bio-refinery.
Lightyear Capital Completes Acquisition of Neff Corp.

Terms of use | Copyright © 2016 Farlex, Inc. | Feedback | For webmasters