Assessment of the Acoustic Properties in Octavo Bands for Selected Polyurethane Materials

Tomasz Małysa; Krzysztof Nowacki; Teresa Lis

doi:10.4028/www.scientific.net/SSP.246.7

Paper Titles

Preface

Application of Micro Wear Testing in Investigations of Super Coarse WC-Co Type Sintered Carbides
p.3

Assessment of the Acoustic Properties in Octavo Bands for Selected Polyurethane Materials
p.7

Effect of Neodymium Addition on the Microstructure of Ti-47Al-2W-0.5Si Alloy
p.11

Effect of Two Different Solutionizing Heat Treatments on the Microstructure of the CMSX-4 Ni-Based Superalloy
p.15

Microstructure and Properties of Beta 21S Alloy with 0.2 wt. % of Carbon
p.19

Mechanism of Hot Cracking Welds of Nickel Alloy Inconel 625
p.25

Precipitation and Growth of Intermatallic Phases in an Fe-Ni Superalloy during Prolonged Ageing
p.29

Precipitation Processes in HR6W Alloy after Long-Term Ageing
p.33

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Assessment of the Acoustic Properties in Octavo Bands for Selected Polyurethane Materials

Abstract:

The article presents the acoustic properties of selected polyurethane materials. The study involved a porous polyurethane foam primary and secondary, for whom assigned the value of sound absorption coefficients in the frequency range of 100 – 1250 Hz. The study was conducted in impedance tube Kundt.

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Periodical:

Solid State Phenomena (Volume 246)

Pages:

7-10

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.246.7

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Online since:

February 2016

Authors:

Tomasz Małysa, Krzysztof Nowacki, Teresa Lis

Keywords:

Kundt’s Tube, Noise, Polyurethane Materials, Sound Absorption Coefficient

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References

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