Structural Relaxation of Ultrasonic Waves in n-Butanol
The velocity of propagation and attenuation of ultrasonic waves in n-butanol have been measured using the pulse transmission technique in the temperature range 10° to 60 °C. HALL'S two state theory of structural relaxation has been applied to show that the absorption in excess of that due to classical phenomena is structural in nature. The temperature variation of relaxational compressibility, β r structural relaxation time, τ, and molal volume difference, ΔV, obtained from an acoustical correlation approach are similar to those of the lower alcohols.
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Document Type: Research Article
Publication date: December 1, 1973
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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