Contact Sensor Attachment to Titanium Metal Composites National Aeronaut Administration

ISBN: 9781722127800

Published: June 30th 2018

34 pages


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Contact Sensor Attachment to Titanium Metal Composites  by  National Aeronaut Administration

Contact Sensor Attachment to Titanium Metal Composites by National Aeronaut Administration
June 30th 2018 | | PDF, EPUB, FB2, DjVu, audiobook, mp3, RTF | 34 pages | ISBN: 9781722127800 | 5.63 Mb

A Pd-13wt%Cr solid solution is a promising high-temperature strain gage alloy. In bulk form it has a number of properties that are desirable in a resistance strain gage material, such as a linear electrical-resistance-versus-temperature curve to 1000... MoreA Pd-13wt%Cr solid solution is a promising high-temperature strain gage alloy. In bulk form it has a number of properties that are desirable in a resistance strain gage material, such as a linear electrical-resistance-versus-temperature curve to 1000 C and stable electrical resistance in air at 1000 C. However, unprotected fine wire gages fabricated from this alloy perform well only to 600 C.

At higher temperatures severe oxidation degrades their electrical performance. In this work Auger electron spectroscopy has been used to study the oxidation chemistry of the alloy wires and ribbons. Results indicate that the oxidation is caused by a complex mechanism that is not yet fully understood. As expected, during oxidation, a layer of chromium oxide is formed.

This layer, however, forms beneath a layer of metallic palladium. The results of this study have increased the understanding of the oxidation mechanism of Pd-13wt%Cr. Vargas-Aburto, Carlos Glenn Research Center NCC3-189...



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