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Benchtop Materialographic Sample Preparation: Unlike other benchtop sample preparation systems, Struers' Rotopol-Pedemaf™ eliminates "dummy" specimens, reducing wasted consumables and time. The unit offers the flexibility to prepare diverse materials and easily accommodates fluctuations in sample volume. Its unique interrupt-inspect-restart capability allows a sample to be removed, inspected, and returned for further processing while remaining in plane so that individual specimens can be prepared to a desired finish. The system can accommodate mounted or unmounted samples in metric or English measure. Multiple specimens can be prepared in a standard holder or individually under pressure-pad feet. Circle No. 53 on Reader Service Card.
application notes from Siemens about using x-ray diffraction to study thin films are a resource for anyone working in this field. A four-page note describes how the company's D 5000 x-ray diffractometer was used to evaluate the degree of structural order and epitaxial quality of high Tc superconducting thin film cuprates on singlecrystal substrates. A six-page note explains how to obtain 3-D characterization of epitaxial thin films using the D 5000 and P3 software. Five other one-page notes explain how to determine lattice mismatch and composition of a single ternary epitaxial layer, two quaternary epitaxial layers, a single thin SiGe epitaxial layer, highly strained multi quantum wells, and carryover of As from the GaAs layer into the InP layer. Circle No. 61 on Reader Service Card.
Variable Speed Vortex Mixer: Shelton Scientific's VSM-3 provides true vortexaction mixing of liquids in laboratory vessels of varying shapes and sizes. Designed for one-hand operation, its settings offer both continuous operation and touch start and stop, while a variable speed control allows for low to high settings of vortex action. The unit is equipped with a cap for single test tubes, as well as a 3-in. platform head for beakers, flasks, and multiple test tubes. Circle No. 57 on Reader Service Card.
Superconductivity Journal: Quarterly Superconductivity Review published by
Gordon and Breach covers important aspects of the field of superconductivity, ranging from fundamental to applied topics and including both theory and experiment. Each individual issue presents comprehensive views recognizing the interdisciplinary nature of research in the field, as well as a survey of the current literature. Circle No. 56 on Reader Service Card. Video Measurement: Free four-page
color brochure from Nikon details the capabilities of the easy-to-use, highperformance VM-1 video measuring system. The VM-1 allows operators to automatically locate, align, and measure parts. Fully automated, it gives reproducible measurements for either aligned or randomly oriented parts. The system uses a Nikon MM-22 measuring microscope with a highly accurate programmable stage, machine vision hardware, and VM-1 software for measuring and analyzing parts. Circle No. 59 on Reader Service Card.
MRS BULLETIN/JULY 1992
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