The propagation of sound in solutions of rubber and perspex
The absorption of ultrasonic waves in the frequency region 4…18 Mc/s was measured in several highly viscous solutions of rubber in benzene and perspex in pyridine. The absorption was less than in the pure solvents and there is evidence of relaxation. Measurements of the shear viscosity of a 10% rubber solution showed that the relaxation of the high flow viscosity was complete even at 50 kc/s. The absorption in the solutions must therefore be ascribed to the “bulk viscosity” of the solvents.
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Document Type: Research Article
Publication date: January 1, 1954
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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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