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Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 24 (1917) > Annual Issue

 

Document Type

Research

Abstract

The wires used in these experiments were furnished through the kindness of Dr. A. G. Worthing of the Nela Laboratory of the General Electric Company, of Cleveland, Ohio. There were five specimens from each of two different sets of wires. Thus each group of five wires was drawn from the same original swaging. The wires range in radius from.002397 cms. To.02584 cms. Tungsten is very hard and brittle, and can be drawn only by experts. The tungsten has previously to be made very free from impurities, and then worked and swaged into a rough wire. This is then drawn down while red hot through holes drilled in diamonds. Even after this apparently successful treatment, the wires show a tendency to fray and split when clamped. Thus their structure is far from uniform and homogeneous.

Publication Date

1917

Journal Title

Proceedings of the Iowa Academy of Science

Volume

24

Issue

1

First Page

207

Last Page

211

Copyright

©1917 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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