Shear modulus determination versus temperature up to the melting point using a laser-ultrasonic device

• Published in: Journal of alloys and compounds Vol. 444; pp. 265 - 267
• Main Authors: Nadal, M.-H., Hubert, C., Ravel-Chapuis, G.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Lausanne Elsevier B.V 11.10.2007; Elsevier
• Subjects: Condensed matter: structure, mechanical and thermal properties; Elasticity, elastic constants; Exact sciences and technology; Laser-ultrasonics; Material characterization; Mechanical and acoustical properties of condensed matter; Mechanical properties of solids; Physics; Rayleigh-waves; Shear modulus; Ultrasonics; Material characterization; Laser-ultrasonics; Shear modulus; Rayleigh-waves; Ultrasonics; Phase transformations; Rayleigh waves; Measuring methods; Instrumentation; Aluminium; Surface waves; Aluminium alloys; Laser radiation; Thermal expansion coefficient; Tin; Ultrasonic method
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2006.10.054

Shear modulus versus temperature μ( T) is determined by an innovating laser-ultrasonic facility. Bulk and surface wave velocities are measured versus temperature and compared. The analysis of the Rayleigh-wave is related to the shear modulus leading to a high sensitivity measurement independent of the thermal expansion coefficient. This last point is of great interest especially to establish the behavior of materials including phase transition associated with high volume changes. This paper focuses on results up to the melting point on tin, pure aluminum and an aluminum alloy.