Pub Date : 2022-08-08DOI: 10.1109/3M-NANO56083.2022.9941518
Runyi Yuan, Wei Si
In recent years, many diseases have been proved to be caused by abnormal protein sequences, so the protein sequencing has been a significant research topic. At the same time, nanopore technologies are striving to realize protein sequencing at single amino acid resolution. However, among the unsolved problems the unfolding of structured proteins into chain-like structures is a prerequisite for nanopore sequencing. In this work, we propose a general two-dimensional heterostructure that can be used for protein unfolding without the need for specific biological or chemical reagents. The role of two-dimensional heterostructures on protein unfolding is studied by molecular dynamics, which provides new inspiration for the subsequent experiments to achieve a general and reliable protein unfolding method.
{"title":"Protein Unfolding with MoS2/SnS2 Heterostructure","authors":"Runyi Yuan, Wei Si","doi":"10.1109/3M-NANO56083.2022.9941518","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941518","url":null,"abstract":"In recent years, many diseases have been proved to be caused by abnormal protein sequences, so the protein sequencing has been a significant research topic. At the same time, nanopore technologies are striving to realize protein sequencing at single amino acid resolution. However, among the unsolved problems the unfolding of structured proteins into chain-like structures is a prerequisite for nanopore sequencing. In this work, we propose a general two-dimensional heterostructure that can be used for protein unfolding without the need for specific biological or chemical reagents. The role of two-dimensional heterostructures on protein unfolding is studied by molecular dynamics, which provides new inspiration for the subsequent experiments to achieve a general and reliable protein unfolding method.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123087457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1109/3M-NANO56083.2022.9941529
M. V. Nikitin, S. G. Zybtsev, V. Pokrovskii, B. Loginov
The conductivity of filamentary samples of quasione- dimensional conductors with a charge density wave (CDW) is studied as a function of the electric field and the frequency of mechanical deformation of the sample. It was found that when the frequency of the actuators, which create deformation of the samples, coincides with one of the mechanical resonances of the sample, the I-V curve exhibits suppression of the threshold field and Shapiro-steps-like features. Other effects of mechanical vibrations on the CDW transport are also discussed. The results open up a new area of electromechanical effects in quasi-onedimensional conductors with CDWs and can be used to detect and process mechanical vibrations in the microwave range.
{"title":"Effect of High-frequency Mechanical Oscillations on the Transport Properties of Quasi-onedimensional Conductors TaS3, NbS3 and (TaSe4)2I","authors":"M. V. Nikitin, S. G. Zybtsev, V. Pokrovskii, B. Loginov","doi":"10.1109/3M-NANO56083.2022.9941529","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941529","url":null,"abstract":"The conductivity of filamentary samples of quasione- dimensional conductors with a charge density wave (CDW) is studied as a function of the electric field and the frequency of mechanical deformation of the sample. It was found that when the frequency of the actuators, which create deformation of the samples, coincides with one of the mechanical resonances of the sample, the I-V curve exhibits suppression of the threshold field and Shapiro-steps-like features. Other effects of mechanical vibrations on the CDW transport are also discussed. The results open up a new area of electromechanical effects in quasi-onedimensional conductors with CDWs and can be used to detect and process mechanical vibrations in the microwave range.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117153400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1109/3M-NANO56083.2022.9941660
Dongdong Liu, Ri Liu, Sadaf Saeed, Zuobin Wang, Litong Dong, Peter Bryanston-Cross
In this work, a flower-like superhydrophobic structure fabricated by hydrothermal treatment on an Al alloy surface has been proposed for anti-icing applications. The surface structure is composed of dense micron-scale flowers and hexagonal petals that are dispersedly distributed. This surface contributes to the excellent water repellent property. The contact angle (CA) is up to 155.4° and the rolling angle can be as low as 4.2°. A significant delayed ice nucleation of 188 s has been illustrated, which is nearly six times longer than the bare surface. Furthermore, a slow propagation of the spherical ice front has been registered as well, due to freezing acceleration at the droplet edge and retardation at the center. The ice front propagates five times slower than that on a bare surface. This study is hypothesized to provide a reference for understanding freezing phenomena on hierarchical superhydrophobic surfaces and designing anti-icing and anti-frosting surfaces.
{"title":"Fabrication of Flower-like Superhydrophobic Surface by Hydrothermal Treatment for Anti-icing","authors":"Dongdong Liu, Ri Liu, Sadaf Saeed, Zuobin Wang, Litong Dong, Peter Bryanston-Cross","doi":"10.1109/3M-NANO56083.2022.9941660","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941660","url":null,"abstract":"In this work, a flower-like superhydrophobic structure fabricated by hydrothermal treatment on an Al alloy surface has been proposed for anti-icing applications. The surface structure is composed of dense micron-scale flowers and hexagonal petals that are dispersedly distributed. This surface contributes to the excellent water repellent property. The contact angle (CA) is up to 155.4° and the rolling angle can be as low as 4.2°. A significant delayed ice nucleation of 188 s has been illustrated, which is nearly six times longer than the bare surface. Furthermore, a slow propagation of the spherical ice front has been registered as well, due to freezing acceleration at the droplet edge and retardation at the center. The ice front propagates five times slower than that on a bare surface. This study is hypothesized to provide a reference for understanding freezing phenomena on hierarchical superhydrophobic surfaces and designing anti-icing and anti-frosting surfaces.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"3 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120915092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1109/3M-NANO56083.2022.9941524
Guanghui Zhao, Yanling Tian, Weijie Wang, Dawei Zhang, Fujun Wang
The influence of operating parameters on the machining performance in vibration-assisted tip-based nano-fabrication (VTBN) for 2D/3D nanostructures was studied in this paper. Taking 3D nanochannels as the machining targets, machining depth and surface roughness as the machining objectives, a series of machining experiments were designed with the general factorial method. According to the results, three parameters are all significant factors of the responses. Vibration frequency has the most significant effect. The amplitude has a linear relationship with two responses. High vibration lead to lower surface quality of the nanostructures.
{"title":"Effects of Operating Parameters in Vibration Assisted Tip-based Nanofabrication for Machining 2D/3D Nanostructures","authors":"Guanghui Zhao, Yanling Tian, Weijie Wang, Dawei Zhang, Fujun Wang","doi":"10.1109/3M-NANO56083.2022.9941524","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941524","url":null,"abstract":"The influence of operating parameters on the machining performance in vibration-assisted tip-based nano-fabrication (VTBN) for 2D/3D nanostructures was studied in this paper. Taking 3D nanochannels as the machining targets, machining depth and surface roughness as the machining objectives, a series of machining experiments were designed with the general factorial method. According to the results, three parameters are all significant factors of the responses. Vibration frequency has the most significant effect. The amplitude has a linear relationship with two responses. High vibration lead to lower surface quality of the nanostructures.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"220 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126718777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1109/3M-NANO56083.2022.9941705
Beibei Zhao, Jinkai Xu, Changtai Zhai, Guibin Sun
High-temperature nickel-based alloy Inconel 718 is a commonly used material in aerospace, ships, heat exchangers, turbines, storage tanks and other fields because of its good physical and chemical properties, and is usually widely used in the manufacture of aero-engine blisks, blades and other key components. In this paper, the temperature field of the material is analyzed. First, through the simulation, observe the influence law of the laser on the temperature field distribution of the material, and through the experimental comparison, the validity of the laser parameters is verified. The surface quality of the workpieces of conventional cutting and laser-assisted cutting is analyzed, and the advantages of laser-assisted machining are obtained.
{"title":"Study on Temperature Field and Surface Quality of Laser-assisted Machining of Inconel 718","authors":"Beibei Zhao, Jinkai Xu, Changtai Zhai, Guibin Sun","doi":"10.1109/3M-NANO56083.2022.9941705","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941705","url":null,"abstract":"High-temperature nickel-based alloy Inconel 718 is a commonly used material in aerospace, ships, heat exchangers, turbines, storage tanks and other fields because of its good physical and chemical properties, and is usually widely used in the manufacture of aero-engine blisks, blades and other key components. In this paper, the temperature field of the material is analyzed. First, through the simulation, observe the influence law of the laser on the temperature field distribution of the material, and through the experimental comparison, the validity of the laser parameters is verified. The surface quality of the workpieces of conventional cutting and laser-assisted cutting is analyzed, and the advantages of laser-assisted machining are obtained.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115173361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Inspired by superhydrophobic biological surfaces in nature, hierarchically non-wetting surfaces have attracted extensive attention in both academia and industry. The present work aims to discuss the relationship between the robustness of superhydrophobic Ti6Al4V surface and micro/nanostructure features. Herein, we fabricated three types of superhydrophobic surfaces (nanostructure, microstructure, and micro-nano structure) on Ti6Al4V substrate, and all of these resultant surfaces were endowed with the superhydrophobicity and showed a large apparent contact angle (>150°) and low liquid adhesion roll-off angle (<10°). Nanostructures and microstructures were fabricated by hydrothermal and laser ablation, respectively. Micro-nanostructures were fabricated using a hybrid method consisting of laser ablation and hydrothermal treatment. Subsequently, the surface morphology, surface chemical composition, and wetting property were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), and contact angle measurement, respectively. Furthermore, we studied the robustness of three types of superhydrophobic Ti6Al4V surfaces, which proved that micro-nanostructures surfaces possessed both good thermal durability and excellent mechanical stability.
{"title":"Fabrication of a Robust Superhydrophobic Ti6Al4V Surface","authors":"Lei Xia, Faze Chen, Jiaqi Chao, Zexin Cai, Zhen Yang, Yanling Tian, Dawei Zhang","doi":"10.1109/3M-NANO56083.2022.9941517","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941517","url":null,"abstract":"Inspired by superhydrophobic biological surfaces in nature, hierarchically non-wetting surfaces have attracted extensive attention in both academia and industry. The present work aims to discuss the relationship between the robustness of superhydrophobic Ti6Al4V surface and micro/nanostructure features. Herein, we fabricated three types of superhydrophobic surfaces (nanostructure, microstructure, and micro-nano structure) on Ti6Al4V substrate, and all of these resultant surfaces were endowed with the superhydrophobicity and showed a large apparent contact angle (>150°) and low liquid adhesion roll-off angle (<10°). Nanostructures and microstructures were fabricated by hydrothermal and laser ablation, respectively. Micro-nanostructures were fabricated using a hybrid method consisting of laser ablation and hydrothermal treatment. Subsequently, the surface morphology, surface chemical composition, and wetting property were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), and contact angle measurement, respectively. Furthermore, we studied the robustness of three types of superhydrophobic Ti6Al4V surfaces, which proved that micro-nanostructures surfaces possessed both good thermal durability and excellent mechanical stability.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129611031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1109/3M-NANO56083.2022.9941631
Zoya Kosakowski, S. von Gratowski, Victor Koledov, Anatoly Smolovich, A. Orlov, Vladimir Shavrov, Ning Dai
Carbon nanotubes (CNTs) are one dimensional nanomaterials with unique functional properties, including electronic, mechanical and many other properties. CNTs are very promising for different nanoelectronic devices. Among them are CNT-based nano-transistors, generators, NEMS, single photon sources, components for nanophotonics, MEMS/NEMS, nanosensorics, and many others. One of the most outstanding functional properties of CNT with many future applications is electron cold field emission. The unique field emission properties of CNTs were first observed in 1994. Since 1994 there are many publications about field emission from CNTs, but till now the mechanism of its occurrence is still not clear. In many papers CNTs are considered as the thinnest metal-conducting cathode with the highest aspect ratio, i.e. the largest electric field amplification factor. In such papers the volt-ampere characteristics (VAC) obtained from CNT is considered in frame of the Fowler-Nordheim law. But in other recent papers it was shown, that in many cases experimental results show that VAC of CNT demonstrate deviations from Fowler Nordheim's law, at least at high and low currents. So the question raises about other possible mechanisms of electron cold field emission from CNT. In this report we use bottom up mechanical nano manipulation for creating nanodevices and set ups to study the electron cold field emission from CNTs. The analysis of many works on field emission from CNTs, as well as our experiments, convincingly show that the mechanism of CNT field emission is different from the emission of metal pointed cathodes. In the present report a new model of cold field emission from CNTs is suggested taking into account the Friedel oscillations of the charge density.
{"title":"Study of Cold Field Emission from CNT Using Nanomanipulation Based on Nanogripper with Shape Memory Effect","authors":"Zoya Kosakowski, S. von Gratowski, Victor Koledov, Anatoly Smolovich, A. Orlov, Vladimir Shavrov, Ning Dai","doi":"10.1109/3M-NANO56083.2022.9941631","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941631","url":null,"abstract":"Carbon nanotubes (CNTs) are one dimensional nanomaterials with unique functional properties, including electronic, mechanical and many other properties. CNTs are very promising for different nanoelectronic devices. Among them are CNT-based nano-transistors, generators, NEMS, single photon sources, components for nanophotonics, MEMS/NEMS, nanosensorics, and many others. One of the most outstanding functional properties of CNT with many future applications is electron cold field emission. The unique field emission properties of CNTs were first observed in 1994. Since 1994 there are many publications about field emission from CNTs, but till now the mechanism of its occurrence is still not clear. In many papers CNTs are considered as the thinnest metal-conducting cathode with the highest aspect ratio, i.e. the largest electric field amplification factor. In such papers the volt-ampere characteristics (VAC) obtained from CNT is considered in frame of the Fowler-Nordheim law. But in other recent papers it was shown, that in many cases experimental results show that VAC of CNT demonstrate deviations from Fowler Nordheim's law, at least at high and low currents. So the question raises about other possible mechanisms of electron cold field emission from CNT. In this report we use bottom up mechanical nano manipulation for creating nanodevices and set ups to study the electron cold field emission from CNTs. The analysis of many works on field emission from CNTs, as well as our experiments, convincingly show that the mechanism of CNT field emission is different from the emission of metal pointed cathodes. In the present report a new model of cold field emission from CNTs is suggested taking into account the Friedel oscillations of the charge density.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128541776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1109/3M-NANO56083.2022.9941509
Xiaoyu Xu, Yuxing Zhang, Haiyang Su, Yuning Wang, Kun Qian
Novel Zr-Fc metal-organic framework (MOF) nanosheets based laser desorption/ionization mass spectrometry (LDI MS) platform has been developed for metabolites detection. The ultrathin Zr-Fc MOF nanosheets was synthesized using the bottom-up method. Furthermore, by optimizing the conditions, Zr-Fc MOF nanosheets exhibited excellent performance as an LDI MS matrix without background interference. The Zr-Fc MOF nanosheets based LDI MS platform has been successfully applied to detect various amino acids with high signal intensity (~ 105), which presents potential values in clinical metabolic analysis for disease diagnosis and evaluation.
{"title":"Zr-Fc MOF Nanosheets Based Mass Spectrometry Platform for Metabolites Detection","authors":"Xiaoyu Xu, Yuxing Zhang, Haiyang Su, Yuning Wang, Kun Qian","doi":"10.1109/3M-NANO56083.2022.9941509","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941509","url":null,"abstract":"Novel Zr-Fc metal-organic framework (MOF) nanosheets based laser desorption/ionization mass spectrometry (LDI MS) platform has been developed for metabolites detection. The ultrathin Zr-Fc MOF nanosheets was synthesized using the bottom-up method. Furthermore, by optimizing the conditions, Zr-Fc MOF nanosheets exhibited excellent performance as an LDI MS matrix without background interference. The Zr-Fc MOF nanosheets based LDI MS platform has been successfully applied to detect various amino acids with high signal intensity (~ 105), which presents potential values in clinical metabolic analysis for disease diagnosis and evaluation.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129142371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1109/3M-NANO56083.2022.9941554
Pengcheng Zhao, B. Lin, Tianyi Sui, Chun-Yu Liu, Bingrui Lv
Through adding high-frequency micro vibration to conventional grinding technique, micro-nano vibration-assisted grinding can reduce grinding force, increase material removal rate and improve surface quality. Some hard and brittle materials, processed through ultrasonic vibration-assisted grinding, have been widely adopted in efficient and quality manufacturing of aerospace, optical instruments and microelectronics. In order to explore how micro-vibration-assisted grinding influences the quality of materials surface, we conducted grinding experiments on K9 glass with diamond grinding head and analyzed the surface quality and material removal mechanisms under different micro-vibration conditions. The results showed that the grinding trajectories became denser, and the micro-vibration-assisted grinding increased the number of effective grinding grains during grinding and reduced the surface roughness. It was found that under the same grinding depth, micro-vibration-assisted grinding just led to micro-breakage instead of large pieces of material falling off in conventional grinding, thereby reduced the surface damage. Through the microscope and white light interferometer, the grinding trajectory became denser under micro-vibration conditions and the trajectory length per unit area increased considerably, which can reduce the surface roughness to a certain extent.
{"title":"Micro-nano Vibration Assisted Grinding Effect of K9 Glass on Surface Quality","authors":"Pengcheng Zhao, B. Lin, Tianyi Sui, Chun-Yu Liu, Bingrui Lv","doi":"10.1109/3M-NANO56083.2022.9941554","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941554","url":null,"abstract":"Through adding high-frequency micro vibration to conventional grinding technique, micro-nano vibration-assisted grinding can reduce grinding force, increase material removal rate and improve surface quality. Some hard and brittle materials, processed through ultrasonic vibration-assisted grinding, have been widely adopted in efficient and quality manufacturing of aerospace, optical instruments and microelectronics. In order to explore how micro-vibration-assisted grinding influences the quality of materials surface, we conducted grinding experiments on K9 glass with diamond grinding head and analyzed the surface quality and material removal mechanisms under different micro-vibration conditions. The results showed that the grinding trajectories became denser, and the micro-vibration-assisted grinding increased the number of effective grinding grains during grinding and reduced the surface roughness. It was found that under the same grinding depth, micro-vibration-assisted grinding just led to micro-breakage instead of large pieces of material falling off in conventional grinding, thereby reduced the surface damage. Through the microscope and white light interferometer, the grinding trajectory became denser under micro-vibration conditions and the trajectory length per unit area increased considerably, which can reduce the surface roughness to a certain extent.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121651679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1109/3M-NANO56083.2022.9941571
Xinyao Zhu, Shaowei Wang, Jing Ye, H. Guo, Rong Wang
Most human teeth have an exposed surface layer of calcified enamel, which is harder than the inner layer of dentin. The interface between the enamel and dentin is called the dentin-enamel junction (DEJ), which ensures that teeth do not collapse and fall off. The purpose of this study was to use finite element analysis software through the $J$-integral method and the extended finite element method (XFEM) to evaluate three models of DEJ structures: i) wavy DEJ with no thickness, ii) rectangle DEJ with a thickness of 0.3 mm, and iii) wavy DEJ with a thickness of 0.3 mm. This paper demonstrates that the layered structure of human teeth plays a positive role in enhancing the fracture strength and preventing the crack from spreading to the depths of teeth. At the same time, we also justify of the scalloped structure and concave orientation of the DEJ interface. The residual stresses in DEJ and its adjacent dentin region are also an important factor of tooth resistance to crack propagation. In addition, the configuration of the DEJ interface and residual stresses in DEJ & dentin areas are further justified by means of XFEM method. The findings in this study provide potential inspiration for the biomimetic design towards strengthening the dentin and dentin-like materials.
{"title":"Investigation of Fracture-resistance of Human Teeth at the Dentin-enamel Junction Using the J-integral Calculation of Finite Element Analysis","authors":"Xinyao Zhu, Shaowei Wang, Jing Ye, H. Guo, Rong Wang","doi":"10.1109/3M-NANO56083.2022.9941571","DOIUrl":"https://doi.org/10.1109/3M-NANO56083.2022.9941571","url":null,"abstract":"Most human teeth have an exposed surface layer of calcified enamel, which is harder than the inner layer of dentin. The interface between the enamel and dentin is called the dentin-enamel junction (DEJ), which ensures that teeth do not collapse and fall off. The purpose of this study was to use finite element analysis software through the $J$-integral method and the extended finite element method (XFEM) to evaluate three models of DEJ structures: i) wavy DEJ with no thickness, ii) rectangle DEJ with a thickness of 0.3 mm, and iii) wavy DEJ with a thickness of 0.3 mm. This paper demonstrates that the layered structure of human teeth plays a positive role in enhancing the fracture strength and preventing the crack from spreading to the depths of teeth. At the same time, we also justify of the scalloped structure and concave orientation of the DEJ interface. The residual stresses in DEJ and its adjacent dentin region are also an important factor of tooth resistance to crack propagation. In addition, the configuration of the DEJ interface and residual stresses in DEJ & dentin areas are further justified by means of XFEM method. The findings in this study provide potential inspiration for the biomimetic design towards strengthening the dentin and dentin-like materials.","PeriodicalId":370631,"journal":{"name":"2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126571102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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