Research and optimum selection of coupling agent materials in ultrasonic measurement
In the detection of metal defects by ultrasonic Lamb waves, the commonly used medical coupling agent is volatile, poor stability, and the coupling effect is easily affected. It is vital to find the coupler materials with better performance. This paper develops sodium alginate hydrogel and acrylamide...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423017684 |
| _version_ | 1827780518511378432 |
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| author | Wanjia Gao Yi Chen Wenyi Liu |
| author_facet | Wanjia Gao Yi Chen Wenyi Liu |
| author_sort | Wanjia Gao |
| collection | DOAJ |
| description | In the detection of metal defects by ultrasonic Lamb waves, the commonly used medical coupling agent is volatile, poor stability, and the coupling effect is easily affected. It is vital to find the coupler materials with better performance. This paper develops sodium alginate hydrogel and acrylamide hydrogel with higher curing degree, and compares them with deionized water and medical coupling agent. At the same time, epoxy glue and organic silicone, which commonly used as adhesives in the aerospace field are selected for performance research. Firstly, analyzing FTIR spectra of the three hydrogels. The results showed that the hydrogel composition are correct and subsequent experiments are reliable. Secondly, the performance characteristics of 6 couplings are studied from 5 aspects of acoustic impedance, ultrasonic energy transfer efficiency, stability, temperature characteristics and oxidation resistance. The results show that the acrylamide gel developed in this paper has higher viscosity and stability than the medical coupling agent, and has a wider application. Based on the five performance studies, it can be concluded that in the measurement environment of long-term fixed sensors in the industrial and aerospace fields, organic silicone can not only play the role of bonding sensors and insulation, but have the advantages of strong stability, high ultrasonic energy transfer efficiency, temperature tolerance, oxidation resistance, etc. It is the optimal coupling material in ultrasonic testing for complex environments. The research in this paper provides a reference for the selection of optimal coupling agent materials for more complex applications, which has important engineering significance. |
| first_indexed | 2024-03-11T15:06:30Z |
| format | Article |
| id | doaj.art-0d32832c0bb24163b5017816d4b8e1ab |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:06:30Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-0d32832c0bb24163b5017816d4b8e1ab2023-10-30T06:02:53ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012610061015Research and optimum selection of coupling agent materials in ultrasonic measurementWanjia Gao0Yi Chen1Wenyi Liu2Key Laboratory of Micro/Nano Devices and Systems, Ministry of Education, North University of China, Taiyuan 030051, China; State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, ChinaState Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, ChinaKey Laboratory of Micro/Nano Devices and Systems, Ministry of Education, North University of China, Taiyuan 030051, China; Corresponding author.In the detection of metal defects by ultrasonic Lamb waves, the commonly used medical coupling agent is volatile, poor stability, and the coupling effect is easily affected. It is vital to find the coupler materials with better performance. This paper develops sodium alginate hydrogel and acrylamide hydrogel with higher curing degree, and compares them with deionized water and medical coupling agent. At the same time, epoxy glue and organic silicone, which commonly used as adhesives in the aerospace field are selected for performance research. Firstly, analyzing FTIR spectra of the three hydrogels. The results showed that the hydrogel composition are correct and subsequent experiments are reliable. Secondly, the performance characteristics of 6 couplings are studied from 5 aspects of acoustic impedance, ultrasonic energy transfer efficiency, stability, temperature characteristics and oxidation resistance. The results show that the acrylamide gel developed in this paper has higher viscosity and stability than the medical coupling agent, and has a wider application. Based on the five performance studies, it can be concluded that in the measurement environment of long-term fixed sensors in the industrial and aerospace fields, organic silicone can not only play the role of bonding sensors and insulation, but have the advantages of strong stability, high ultrasonic energy transfer efficiency, temperature tolerance, oxidation resistance, etc. It is the optimal coupling material in ultrasonic testing for complex environments. The research in this paper provides a reference for the selection of optimal coupling agent materials for more complex applications, which has important engineering significance.http://www.sciencedirect.com/science/article/pii/S2238785423017684Coupling agentPerformanceUltrasonic Lamb wavesHydrogelOrganic silicone |
| spellingShingle | Wanjia Gao Yi Chen Wenyi Liu Research and optimum selection of coupling agent materials in ultrasonic measurement Journal of Materials Research and Technology Coupling agent Performance Ultrasonic Lamb waves Hydrogel Organic silicone |
| title | Research and optimum selection of coupling agent materials in ultrasonic measurement |
| title_full | Research and optimum selection of coupling agent materials in ultrasonic measurement |
| title_fullStr | Research and optimum selection of coupling agent materials in ultrasonic measurement |
| title_full_unstemmed | Research and optimum selection of coupling agent materials in ultrasonic measurement |
| title_short | Research and optimum selection of coupling agent materials in ultrasonic measurement |
| title_sort | research and optimum selection of coupling agent materials in ultrasonic measurement |
| topic | Coupling agent Performance Ultrasonic Lamb waves Hydrogel Organic silicone |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423017684 |
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