Porous Metal Backing for High-Temperature Ultrasonic Transducers
Improving the performance of high-temperature ultrasonic transducers is a goal of major importance in many industrial applications. To this aim, we propose to use porous metals that support high temperatures as backings. Thus, the acoustic properties of stainless steel and porous stainless steel wit...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Acoustics |
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| Online Access: | https://www.mdpi.com/2624-599X/6/4/58 |
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| author | Guy Feuillard Dang Chi Nguyen Marc Lethiecq Mathieu Jean Frédéric Navacchia |
| author_facet | Guy Feuillard Dang Chi Nguyen Marc Lethiecq Mathieu Jean Frédéric Navacchia |
| author_sort | Guy Feuillard |
| collection | DOAJ |
| description | Improving the performance of high-temperature ultrasonic transducers is a goal of major importance in many industrial applications. To this aim, we propose to use porous metals that support high temperatures as backings. Thus, the acoustic properties of stainless steel and porous stainless steel with porosity of 25% and 35% are determined at ambient temperature and up to 400 °C. Over the temperature range, the longitudinal wave velocity variation is comprised between 5% and 6% in the porous metals. We find that temperature does not significantly affect the attenuation in the material. The pulse-echo response and frequency response of a LiNbO3-based transducer with a porous backing are simulated using a one dimensional electroacoustic model. These simulations, compared to those of a reference transducer, show that the axial resolution with such a design allows these transducers to be used for imaging and/or Non-Destructive Testing and evaluation at high temperature. |
| format | Article |
| id | doaj-art-891a036bbcd54dddbb99e9aa56939922 |
| institution | DOAJ |
| issn | 2624-599X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Acoustics |
| spelling | doaj-art-891a036bbcd54dddbb99e9aa569399222025-08-20T02:53:39ZengMDPI AGAcoustics2624-599X2024-11-01641074108710.3390/acoustics6040058Porous Metal Backing for High-Temperature Ultrasonic TransducersGuy Feuillard0Dang Chi Nguyen1Marc Lethiecq2Mathieu Jean3Frédéric Navacchia4INSA Centre Val de Loire, GREMAN Laboratory, UMR CNRS 7347, Université de Tours, 3 rue de la Chocolaterie, CEDEX, 41034 Blois, FranceINSA Centre Val de Loire, GREMAN Laboratory, UMR CNRS 7347, Université de Tours, 3 rue de la Chocolaterie, CEDEX, 41034 Blois, FranceINSA Centre Val de Loire, GREMAN Laboratory, UMR CNRS 7347, Université de Tours, 3 rue de la Chocolaterie, CEDEX, 41034 Blois, FranceCEA-DES\IRESNE\DTN\STCP\LISM, 13108 St-Paul-Lez-Durance, FranceCEA-DES\IRESNE\DTN\STCP\LISM, 13108 St-Paul-Lez-Durance, FranceImproving the performance of high-temperature ultrasonic transducers is a goal of major importance in many industrial applications. To this aim, we propose to use porous metals that support high temperatures as backings. Thus, the acoustic properties of stainless steel and porous stainless steel with porosity of 25% and 35% are determined at ambient temperature and up to 400 °C. Over the temperature range, the longitudinal wave velocity variation is comprised between 5% and 6% in the porous metals. We find that temperature does not significantly affect the attenuation in the material. The pulse-echo response and frequency response of a LiNbO3-based transducer with a porous backing are simulated using a one dimensional electroacoustic model. These simulations, compared to those of a reference transducer, show that the axial resolution with such a design allows these transducers to be used for imaging and/or Non-Destructive Testing and evaluation at high temperature.https://www.mdpi.com/2624-599X/6/4/58transducerhigh temperatureporous metalultrasonic characterization |
| spellingShingle | Guy Feuillard Dang Chi Nguyen Marc Lethiecq Mathieu Jean Frédéric Navacchia Porous Metal Backing for High-Temperature Ultrasonic Transducers Acoustics transducer high temperature porous metal ultrasonic characterization |
| title | Porous Metal Backing for High-Temperature Ultrasonic Transducers |
| title_full | Porous Metal Backing for High-Temperature Ultrasonic Transducers |
| title_fullStr | Porous Metal Backing for High-Temperature Ultrasonic Transducers |
| title_full_unstemmed | Porous Metal Backing for High-Temperature Ultrasonic Transducers |
| title_short | Porous Metal Backing for High-Temperature Ultrasonic Transducers |
| title_sort | porous metal backing for high temperature ultrasonic transducers |
| topic | transducer high temperature porous metal ultrasonic characterization |
| url | https://www.mdpi.com/2624-599X/6/4/58 |
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