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Figures appearing in EDITOR'S CHOICE are those arising from materials research which strike the editor's fancy as being aesthetically appealing and eye-catching. No further criteria are applied and none should be assumed. When taken out of context, such figures often evoke images beyond and unrelated to the original meaning. Submissions of candidatefiguresare welcome and should include a complete source citation, a photocopy of the report in which it appears (or will appear), and a reproduction-quality original drawing or photograph of the figure in question.
77 "Academic Press, Inc. 78 *ASM International 41 'Australian Scientific Instruments 52 *Bede Scientific * Denton Vacuum, Inc. 13 7 'Digital Instruments * High Voltaqe Engineering inside front cover * Huntinqton Laboratories outside back cover 76 JSR Ultrasonics * Lambda Technologies 10 *MDC Vacuum Products Corporation 9 17 'National Electrostatics Corp. New Focus, Inc. inside back cover 74 * Parke Mathematical Lab. 2 'Philips Electron Optics 12 The Phosphor Technology Center 1 *RJ Lee Instruments Ltd. 6 'Staib Instruments 14 'Tencor Instruments 15 *VAT, Inc. USA 'Virginia Semiconductor, Inc. 21 11 'Voltaix, Inc. For free information about the products and services offered in this issue, fill out and mail the Reader Service Card, or FAX it to (312) 922-3165. * Please visit us at the Exhibit, December 3-5, during the 1996 MRS Fall Meeting/ICEM-96 in Boston.
This month's EDITOR'S CHOICE may well be a seamstress's attempt to deceive. What clearly seems to be a close-up on the product of pin-striped remnants at a quilting bee is advertised to EDITOR'S CHOICE as a transmission electron micrograph of a rapidly solidified alloy of titanium and erbium (1.7 at.%) metals. There is even a publication that supports this thesis (M.V. Krai, W.H. Hofmeister, and J.E. Wittig in Synthesis/Processing of Lightweight Metallic Materials, edited by F.H. Froes, et al. [The
Minerals, Metals & Materials Society, Warrendale, PA 1995] p. 27ff). The claim is that if one melts this alloy while elecfromagnetically levitated (the metal, not the experimenter) and lets it (under)cool below its normalfreezingpoint while it plummets three meters through high vacuum to a rotating copper wheel where it unceremoniously splats and spins off as a solid, this microstructure is made. The seams are grain boundaries of the low-temperature phase, alpha-titanium. The pin stripes in the grains result from precipitation of erbium and erbium sesquioxide along the vestiges of rapidly propagating ledges at the short-lived interphase boundary between the high-temperature phase, beta-titanium, and the alpha phase as the former transforms to the latter during cooling of the solid. The seamstress would have us believe that all four alpha grains coincidentally lined up their sheets of precipitates at right angles to the plane of the TEM specimen just for this picture. They must have been psychic. This led EDITOR'S CHOICE to consult a modern soothsayer, a specialist in palmistr
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