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Chuai S, Zhu X, Ye L, Liu Y, Wang Z, Li F. Study on the mechanism of ultrasonic cavitation effect on the surface properties enhancement of TC17 titanium alloy. ULTRASONICS SONOCHEMISTRY 2024; 108:106957. [PMID: 38901304 DOI: 10.1016/j.ultsonch.2024.106957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/04/2024] [Accepted: 06/14/2024] [Indexed: 06/22/2024]
Abstract
In industrial production and scientific research, ultrasonic cavitation technology, with its outstanding physical and chemical processing capabilities, has been widely applied in fields such as material surface modification, chemical synthesis, and biotechnology, becoming a focal point of research and application. This article delves into the effects of different ultrasonic frequencies on cavitation outcomes through the combined use of numerical simulation, fluorescence analysis, and high-speed photography, specifically analyzing the quantitative improvement in the mechanical properties of TC17 titanium alloy under ultrasonic cavitation at frequencies of 20 kHz, 30 kHz, and 40 kHz. The study found that at an ultrasonic frequency of 20 kHz, the maximum expansion radius of cavitation bubbles can reach 51.4 μm, 8.6 times their initial radius. Correspondingly, fluorescence intensity and peak area also increased to 402.8 and 28104, significantly above the baseline level. Moreover, after modification by ultrasonic cavitation, the original machining marks on the surface of TC17 titanium alloy became fainter, with the emergence of new, uniformly distributed microfeatures. The microhardness of the material increased from 373.7 Hv to 383.84 Hv, 396.62 Hv, and 414.06 Hv, with a maximum improvement of 10.8 %. At the same time, surface height difference and roughness significantly decreased (to 3.168 μm and 0.61 μm respectively), with reductions reaching 45.1 % and 42.4 %, indicating a significant improvement in material surface quality. Notably, there is a negative correlation between the improvement of mechanical properties and ultrasonic frequency, suggesting that the improvement effects decrease as ultrasonic frequency increases. This research not only reveals the quantitative relationship between ultrasonic cavitation frequency and material surface modification effects but also provides a solid scientific basis and practical guidance for the application of ultrasonic cavitation technology in surface engineering, signifying the technology's potential for broad application in the future.
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Affiliation(s)
- Shida Chuai
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Xijing Zhu
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China.
| | - Linzheng Ye
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Yao Liu
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Zexiao Wang
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Fei Li
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
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Wu H, Jin Y, Li Y, Zheng H, Lai X, Ma J, Ohl CD, Yu H, Li D. Exploring viscosity influence mechanisms on coating removal: Insights from single cavitation bubble behaviours in low-frequency ultrasonic settings. ULTRASONICS SONOCHEMISTRY 2024; 104:106810. [PMID: 38377804 PMCID: PMC10884963 DOI: 10.1016/j.ultsonch.2024.106810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 02/10/2024] [Accepted: 02/13/2024] [Indexed: 02/22/2024]
Abstract
The role of acoustic cavitation in various surface cleaning disciplines is important. However, the physical mechanisms underlying acoustic cavitation-induced surface cleansing are poorly understood. This is due to the combination of microscopic and ultrashort timescales associated with the dynamics of acoustic cavitation bubbles. Here, we have precisely controlled single-bubble cavitation in both space and time. Ultrasonic excitation leads to the cavitation of generated single bubbles. A synchronous ultrafast photomicrographic system simultaneously records the dynamics of single acoustic cavitation bubbles (SACBs) and the cleaning process of the nearby surface in liquids with varying viscosities. Finally, we analysed the correlation between bubble dynamics and surface cleaning situations. The differences in the typical dynamic characteristics of the bubbles during collapse in liquids with varying viscosities reveal two main mechanisms underlying surface cleaning by acoustic cavitation, which are respective the Laplace pressure during the bubble's movement and liquid jets during bubble collapse. Our study provides a better physical understanding of the ultrasonic cleaning process based on acoustic cavitation, and will help to optimize and facilitate the applications of surface cleaning, especially for the cleaning of substrates with tightly attached dirt.
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Affiliation(s)
- Hao Wu
- Department of Soft Matter, Institute of Physics, Otto-von-Guericke University Magdeburg, Magdeburg 39106, Germany; Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China; School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, PR China
| | - Yongzhen Jin
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Yuanyuan Li
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Hao Zheng
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, PR China
| | - Xiaochen Lai
- School of Automation, Nanjing University of Information Science & Technology, Nanjing 210044, PR China
| | - Jiaming Ma
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, PR China
| | - Claus-Dieter Ohl
- Department of Soft Matter, Institute of Physics, Otto-von-Guericke University Magdeburg, Magdeburg 39106, Germany.
| | - Haixia Yu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, PR China.
| | - Dachao Li
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, PR China.
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Fu Y, Zhu X, Wang J, Gong T. Numerical study of the synergistic effect of cavitation and micro-abrasive particles. ULTRASONICS SONOCHEMISTRY 2022; 89:106119. [PMID: 35969914 PMCID: PMC9396228 DOI: 10.1016/j.ultsonch.2022.106119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/25/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
In ultrasonic-assisted machining, the synergistic effect of the cavitation effect and micro-abrasive particles plays a crucial role. Studies have focused on the investigation of the micro-abrasive particles, cavitation micro-jets, and cavitation shock waves either individually or in pairs. To investigate the synergy of shock waves and micro-jets generated by cavitation with micro-abrasive particles in ultrasonic-assisted machining, the continuous control equations of a cavitation bubble, shock wave, micro-jet, and micro-abrasive particle influenced by the dimensionless amount (R/R0), a particle size-velocity-pressure model of the micro-abrasive particle was established. The effects of ultrasonic frequency, sound pressure amplitude, and changes in particle size on micro-abrasive particle velocity and pressure were numerically simulated. At an ultrasonic frequency of 20 kHz and ultrasonic sound pressure of 0.1125 MPa, a smooth spherical SiO2 micro-abrasive particle (size = 5 µm) was obtained, with a maximum velocity of 190.3-209.4 m/s and pressure of 79.69-89.41 MPa. The results show that in the range of 5-50 μm, smaller particle sizes of the micro-abrasive particles led to greater velocity and pressure. The shock waves, micro-jets, and micro-abrasive particles were all positively affected by the dimensionless amount (R/R0) of cavitation bubble collapse, the larger the dimensionless quantity, the faster their velocity and the higher their pressure.
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Affiliation(s)
- Yingze Fu
- Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan, Shanxi 030051, China; School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Xijing Zhu
- Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan, Shanxi 030051, China; School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China.
| | - Jianqing Wang
- Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan, Shanxi 030051, China; School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Tai Gong
- Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan, Shanxi 030051, China; School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China
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Ultrasonic Microbubble Cavitation Enhanced Tissue Permeability and Drug Diffusion in Solid Tumor Therapy. Pharmaceutics 2022; 14:pharmaceutics14081642. [PMID: 36015267 PMCID: PMC9414228 DOI: 10.3390/pharmaceutics14081642] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/31/2022] [Accepted: 08/04/2022] [Indexed: 01/21/2023] Open
Abstract
Chemotherapy has an essential role not only in advanced solid tumor therapy intervention but also in society’s health at large. Chemoresistance, however, seriously restricts the efficiency and sensitivity of chemotherapeutic agents, representing a significant threat to patients’ quality of life and life expectancy. How to reverse chemoresistance, improve efficacy sensitization response, and reduce adverse side effects need to be tackled urgently. Recently, studies on the effect of ultrasonic microbubble cavitation on enhanced tissue permeability and retention (EPR) have attracted the attention of researchers. Compared with the traditional targeted drug delivery regimen, the microbubble cavitation effect, which can be used to enhance the EPR effect, has the advantages of less trauma, low cost, and good sensitization effect, and has significant application prospects. This article reviews the research progress of ultrasound-mediated microbubble cavitation in the treatment of solid tumors and discusses its mechanism of action to provide new ideas for better treatment strategies.
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Influence of Surface Tension on Dynamic Characteristics of Single Bubble in Free-Field Exposed to Ultrasound. MICROMACHINES 2022; 13:mi13050782. [PMID: 35630249 PMCID: PMC9147617 DOI: 10.3390/mi13050782] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 02/04/2023]
Abstract
The motion of bubbles in an ultrasonic field is a fundamental physical mechanism in most applications of acoustic cavitation. In these applications, surface-active solutes, which could lower the surface tension of the liquid, are always utilized to improve efficiency by reducing the cavitation threshold. This paper examines the influence of liquids’ surface tension on single micro-bubbles motion in an ultrasonic field. A novel experimental system based on high-speed photography has been designed to investigate the temporary evolution of a single bubble in the free-field exposed to a 20.43 kHz ultrasound in liquids with different surface tensions. In addition, the R-P equations in the liquid with different surface tension are solved. It is found that the influences of the surface tension on the bubble dynamics are obvious, which reflect on the changes in the maximum size and speed of the bubble margin during bubble oscillating, as well as the weaker stability of the bubble in the liquid with low surface tension, especially for the oscillating bubble with higher speed. These effects of the surface tension on the bubble dynamics can explain the mechanism of surfactants for promoting acoustic cavitation in numerous application fields.
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Dong L, Li N, Wei X, Wang Y, Chang L, Wu H, Song L, Guo K, Chang Y, Yin Y, Pan M, Shen Y, Wang F. A Gambogic Acid-Loaded Delivery System Mediated by Ultrasound-Targeted Microbubble Destruction: A Promising Therapy Method for Malignant Cerebral Glioma. Int J Nanomedicine 2022; 17:2001-2017. [PMID: 35535034 PMCID: PMC9078874 DOI: 10.2147/ijn.s344940] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 04/19/2022] [Indexed: 12/12/2022] Open
Abstract
Background Purpose Methods Results Conclusion
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Affiliation(s)
- Lei Dong
- Henan Key Laboratory of Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
| | - Nana Li
- Henan Key Laboratory of Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
| | - Xixi Wei
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
| | - Yongling Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
| | - Liansheng Chang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
| | - Hongwei Wu
- Department of Chemistry, Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
| | - Liujiang Song
- Department of Ophthalmology, Gene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27517, USA
| | - Kang Guo
- Department of Oncology, The Third affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
| | - Yuqiao Chang
- Henan Key Laboratory of Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
| | - Yaling Yin
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
| | - Min Pan
- Department of Ultrasound, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, 518034, People’s Republic of China
- Min Pan, Department of Ultrasound, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, No. 6001 Beihuan Avenue, Shenzhen, 518034, People’s Republic of China, Email
| | - Yuanyuan Shen
- National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, People’s Republic of China
| | - Feng Wang
- Henan Key Laboratory of Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, People’s Republic of China
- Correspondence: Feng Wang, Henan Key Laboratory of Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, Henan, 453002, People’s Republic of China, Email
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Lu X, Chen C, Dong K, Li Z, Chen J. An equivalent method of jet impact loading from collapsing near-wall acoustic bubbles: A preliminary study. ULTRASONICS SONOCHEMISTRY 2021; 79:105760. [PMID: 34653916 PMCID: PMC8517929 DOI: 10.1016/j.ultsonch.2021.105760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/08/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Cavitation damage is a micro, high-speed, multi-phase complex phenomenon caused by the near-wall bubble group collapse. The current numerical simulation method of cavitation mainly focuses on the collapse impact of a single cavitation bubble. The large-scale simulation of the cavitation bubble group collapse is difficult to perform and has not been studied, to the best of our knowledge. In this study, the equivalent model of impact loading of acoustic bubble collapse micro-jets is proposed to study the cavitation erosion damage of materials. Based on the theory of the micro-jet and the water hammer effect of the liquid-solid impact, an equivalent model of impact loading of a single acoustic bubble collapse micro-jet is established under the principle of deformation equivalence. Since the acoustic bubbles can be considered uniformly distributed in a small enough area, an equivalent model of impact loading of multiple acoustic bubble collapse micro-jets in a micro-segment can be derived based on the equivalent results of impact loading of a single acoustic bubble collapse micro-jet. In fact, the equivalent methods of cavitation damage loading for single and multiple near-wall acoustic bubble collapse micro-jets are formed. The verification results show the law of cavitation deformation of concrete using equivalent loading is consistent with that of a micro-jet simulation, and the average relative errors and the mean square errors are insignificant. The equivalent method of impact loading proposed in this paper has high accuracy and can greatly improve the calculation efficiency, which provides technical support for numerical simulation of concrete cavitation.
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Affiliation(s)
- Xiang Lu
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China; College of Water Resources & Hydropower, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Chen Chen
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China; College of Water Resources & Hydropower, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China.
| | - Kai Dong
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China; College of Water Resources & Hydropower, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China; Department of Dam Safety Management, Nanjing Hydraulic Research Institute, No. 223 Guangzhou Road, Nanjing 210029, China
| | - Zefa Li
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China; College of Water Resources & Hydropower, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Jiankang Chen
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China; College of Water Resources & Hydropower, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
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