Analysis of amplitude and frequency detection error of surface acoustic wave generated by laser line source

Liang, Xiaohu; Lin, Bin; Liu, Zaiwei; Du, Anyao

doi:10.1016/j.apacoust.2021.107934

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…Detection of SAW at elevated temperatures would be favorable to study the effect of temperature activated process like diffusion, phase change and oxidation. Piezoelectric sensors that contact the measurement surface are robust, inexpensive and easy to use, 38 and detection of the surface acoustic wave. 39,40 While this method does not heat the SAW sensor and allows to the use of conventional contact sensors, it requires sophisticated instrumentation and evaluation and excludes the whole sample to be homogeneously heated for a defined amount of time.…”

Section: Introductionmentioning

confidence: 99%

“…Detection of SAW at elevated temperatures would be favorable to study the effect of temperature activated process like diffusion, phase change and oxidation. Piezoelectric sensors that contact the measurement surface are robust, inexpensive and easy to use, 38 however, contain polymeric components, limiting their application range to well below 200°C. Recently, Liu et al have demonstrated temperature dependent measurement of shear modulus of a Titanium sample, applying local laser‐generated transient heating between generation and detection of the surface acoustic wave 39,40 .…”

Section: Introductionmentioning

confidence: 99%

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Surface acoustic wave spectroscopy for non‐destructive coating and bulk characterization at temperatures up to 600°C enabled by piezoelectric aluminum nitride coated sensor

Makowski,

Zawischa,

Schneider

et al. 2024

Surface & Interface Analysis

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Surface acoustic wave spectroscopy has been established as non‐destructive and fast method for characterization of mechanical properties of surfaces and bulk materials in both research and industry. The present work shows that by application of a novel and robust aluminum nitride (AlN) coated piezoelectric contact sensor the advantages of the method can be extended from room temperature to at least 600°C. An overview of sensor concepts and applications of the method is discussed first, followed by theoretical and practical considerations for design and coating of a novel temperature stable contact sensor. After fabrication of such a sensor using magnetron sputtering, it was tested in a modified surface acoustic wave spectroscopy setup with an incorporated heating table concerning signal amplitude and frequency range. The AlN coated sensor was found to perform well up to 600°C, with temperature limited by the specification of the heating table. At room temperature, performance was acceptable when compared with a conventional contact sensor using a PVDF piezoelectric foil. Application of the high temperature capabilities of the setup was demonstrated by measuring temperature stability of hydrogen‐free amorphous carbon coatings (a‐C and ta‐C) depending on their sp3 carbon ratio. In another example, high precision temperature dependent measurement of Young's modulus for ultrasonic fatigue test specimen was taken, achieving an accuracy better than 1%. Use of the developed sensor opens up new possibilities in material science for in situ study of temperature depending mechanical properties for coatings and surfaces.

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Section: Introductionmentioning

confidence: 99%

“…Detection of SAW at elevated temperatures would be favorable to study the effect of temperature activated process like diffusion, phase change and oxidation. Piezoelectric sensors that contact the measurement surface are robust, inexpensive and easy to use, 38 however, contain polymeric components, limiting their application range to well below 200°C. Recently, Liu et al have demonstrated temperature dependent measurement of shear modulus of a Titanium sample, applying local laser‐generated transient heating between generation and detection of the surface acoustic wave 39,40 .…”

Section: Introductionmentioning

confidence: 99%