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Ultrasonic Measurement Technique of Burning Metals in Normal and Reduced Gravity

Chiffoleau, Gwenael J.A., Steinberg, Theodore A., & Veidt, Martin (2003) Ultrasonic Measurement Technique of Burning Metals in Normal and Reduced Gravity. In Steinberg, T.A., Beeson, H.D., & Newton, B.E. (Eds.) Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres: Tenth Volume, ASTM STP 1454. American Society for Testing and Materials.

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Abstract

The in situ real time measurement of the regression rate of a melting interface (RRMI) is performed by the ultrasonic measurement system reported here. The RRMI is the rate at which a solid/liquid interface (SLI) moves along a metallic rod while burning in an oxygen-enriched atmosphere and is an important flammability indicator. The ultrasonic transducer and associated equipment used to drive the transducer and record the echo signal is described, along with the process that transforms the acquired signals into a RRMI value. Test rods of various metals and geometric shapes were burned at several test conditions in different test facilities. The RRMI results with quantified errors are presented and reviewed. The effect of reduced gravity on burning metals is important to space-applications and RRMI results obtained in a reduced gravity environment are also presented.

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ID Code: 2600
Item Type: Book Chapter
Additional Information: For more information about this book please refer to the publisher's website (see link) or contact the author . Author contact details : t.steinberg@qut.edu.au
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Keywords: metals flammability, regression rate of a melting interface, solid/liquid interface, metals flammability, regression rate of a melting interface, solid/liquid interface, guided wave ultrasonics, pulse, echo technique, reduced gravity, metals combustion, oxygen compatability, fire safety, metals burning
ISBN: 0803134703
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Mechanical Engineering not elsewhere classified (091399)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2003 ASTM
Deposited On: 16 Nov 2005
Last Modified: 29 Feb 2012 23:21

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