Applied Materials Today最新文献_第6页

Vibration modes of phonons in few-layer NbOCl2 modulated by uniaxial strain 单轴应变调制的少层 NbOCl2 声子振动模式

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-10 DOI: 10.1016/j.apmt.2024.102384

Wei Chen, Muyang Huang, Qiong Chen, Siwei Luo, Zongyu Huang, Xiang Qi

{"title":"Vibration modes of phonons in few-layer NbOCl2 modulated by uniaxial strain","authors":"Wei Chen, Muyang Huang, Qiong Chen, Siwei Luo, Zongyu Huang, Xiang Qi","doi":"10.1016/j.apmt.2024.102384","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102384","url":null,"abstract":"Strain engineering is an important strategy to modulate the optical and electronic properties of two-dimensional materials. Phonon is one of the most significant elementary excitations of solids and plays a key role in heat conduction, phonon-photon interaction and phonon-electron interaction. NbOCl is abundant in phonon modes, demonstrates considerable monolayer-like exciton effects, possesses excellent second-order nonlinear optical response, and displays emerging physical properties attributed to its weak interlayer coupling. In this work, the phonon vibrational modes of NbOCl were modulated by uniaxial strain. The phonon vibrational modes P1 and P5 exhibited strain-dependent phonon displacements, with the strain coefficients of P1 under uniaxial tensile strain reaching 3.45 cm/% and that of P5 as high as 6.61 cm/%. Furthermore, the full width at half maximum (FWHM) of P5 tended to decrease during the tensile strain loading process. In addition, the sensitivity of the phonon vibrational modes of NbOCl to strain was also investigated for different layers, and it was found that the thin layers of NbOCl were highly sensitive to strain. This work broadens the application in flexible optoelectronic devices. It also has great potential application value in future fields such as quantum communication, design of lasers and solar cells.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"152 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review on high-cycle fatigue size effect of selective laser melted metals 选择性激光熔化金属的高循环疲劳尺寸效应综述

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-08 DOI: 10.1016/j.apmt.2024.102367

Qia Zhao, Weixing Yao, Jing Cao, Boda Wang, Yuan Tao, Zhen Dai

引用次数: 0

Gradient ceramic structures via multi-material direct ink writing 通过多材料直接墨水书写技术实现梯度陶瓷结构

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-08 DOI: 10.1016/j.apmt.2024.102366

Joshua Pelz, Nicholas Ku, Taylor Shoulders, Matthew Guziewski, Samuel Figueroa, Jeffrey J. Swab, Lionel R. Vargas-Gonzalez, Marc A. Meyers

{"title":"Gradient ceramic structures via multi-material direct ink writing","authors":"Joshua Pelz, Nicholas Ku, Taylor Shoulders, Matthew Guziewski, Samuel Figueroa, Jeffrey J. Swab, Lionel R. Vargas-Gonzalez, Marc A. Meyers","doi":"10.1016/j.apmt.2024.102366","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102366","url":null,"abstract":"Dense boron carbide-silicon carbide specimens with composition tailored at the mesoscale were produced by direct ink write additive manufacturing in three configurations: I, 2 % and II, 10 % compositional layer-to-layer steps, and III, homogeneous composition throughout. Flexural strength, indicative of tensile failure, is the highest for the Type-II design (366 MPa) due to its compressive residual stress state in the surface layers. Analysis of thermally-induced residual stresses predicts the ranking of the flexural strengths obtained for Type-II (highest), Type-I (intermediate), and Type-III (lowest) specimens. Compressive strength is load-orientation independent, highly strain-rate dependent, and reduced for specimens with thermal residual stress. Mechanical tests were performed in cube and dumbbell geometries. Dumbbell geometry compression specimens have a compressive strength that is 68 % (quasistatic) and 86 % (dynamic) higher than that of cube geometry and show a greater strain rate dependence. The rate dependency is attributed to the competition between crack propagation and loading velocities. Type-I dumbbells show the highest mean compressive strength of 3.96 GPa (quasi-static) and 5.11 GPa (dynamic). The failure mode evolves from mixed intergranular/transgranular at low strain rates to transgranular at high strain rates. High-speed video analysis indicates that dumbbell geometry specimens fail in compression due to microcrack growth and coalescence, while cubes fail due to the axial macrocracks that develop at the specimen/load platen interface and propagate into the specimen parallel to the loading direction (end splitting). This work demonstrates the impact of compositional variation, tailored by additive manufacturing, on the mechanical performance of ceramic composites.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"484 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and molecular dynamics of biocompatible WPU/PVA composite hydrogels with enhanced fatigue resistance: Energy dissipation of intermolecular clusters for elastomers 具有更强抗疲劳性的生物相容性 WPU/PVA 复合水凝胶的设计与分子动力学：弹性体分子间团簇的能量耗散

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-07 DOI: 10.1016/j.apmt.2024.102377

Jianming Zhao, Miaojie Shi, Yajie Xie, Chao Ning, Kun Qiao, Runzheng Jiang, Abudureheman Bahatibieke, Yudong Zheng

{"title":"Design and molecular dynamics of biocompatible WPU/PVA composite hydrogels with enhanced fatigue resistance: Energy dissipation of intermolecular clusters for elastomers","authors":"Jianming Zhao, Miaojie Shi, Yajie Xie, Chao Ning, Kun Qiao, Runzheng Jiang, Abudureheman Bahatibieke, Yudong Zheng","doi":"10.1016/j.apmt.2024.102377","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102377","url":null,"abstract":"To engineer a hydrogel elastomer for use as an in vivo tissue replacement, it is imperative to ensure superior fatigue resistance, guaranteeing a prolonged service life. Investigating the molecular mechanisms of strain energy accumulation and transmission, which occur during the compression of elastomeric materials, is instrumental in elucidating the causes of hydrogel material fatigue. Such insights are of immense value for the development of durable artificial tissue replacements, ensuring their longevity and sustained functionality within the human body. We synthesized hydrogel elastomers through polyvinyl alcohol (PVA) and waterborne polyurethane (WPU) with good biocompatibility, and studied their fatigue behavior through molecular dynamics (MD). The results of this analysis demonstrate that the introduction of energy dissipation structures between mechanically supported molecular frameworks can enhance the relaxation efficiency of polymers. This improvement leads to enhanced resistance of hydrogels to compression fatigue. A total of 1,000,000 cycles of compression tests were conducted to verify that WPU/PVA did not exhibit any significant compression fatigue under high stress of 50 % strain. In contrast, PVA hydrogel exhibited obvious fatigue due to the absence of an energy dissipation structure. These results revealed the source of compression fatigue resistance of hydrogel elasticity and provided powerful guidance for the design and synthesis of artificial tissues.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"157 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine learning driven forward prediction and inverse design for 4D printed hierarchical architecture with arbitrary shapes 针对具有任意形状的 4D 印刷分层结构的机器学习驱动的正向预测和反向设计

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-07 DOI: 10.1016/j.apmt.2024.102373

Liuchao Jin, Shouyi Yu, Jianxiang Cheng, Haitao Ye, Xiaoya Zhai, Jingchao Jiang, Kang Zhang, Bingcong Jian, Mahdi Bodaghi, Qi Ge, Wei-Hsin Liao

{"title":"Machine learning driven forward prediction and inverse design for 4D printed hierarchical architecture with arbitrary shapes","authors":"Liuchao Jin, Shouyi Yu, Jianxiang Cheng, Haitao Ye, Xiaoya Zhai, Jingchao Jiang, Kang Zhang, Bingcong Jian, Mahdi Bodaghi, Qi Ge, Wei-Hsin Liao","doi":"10.1016/j.apmt.2024.102373","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102373","url":null,"abstract":"The forward prediction and inverse design of 4D printing have primarily focused on 2D rectangular surfaces or plates, leaving the challenge of 4D printing parts with arbitrary shapes underexplored. This gap arises from the difficulty of handling varying input sizes in machine learning paradigms. To address this, we propose a novel machine learning-driven approach for forward prediction and inverse design tailored to 4D printed hierarchical architectures with arbitrary shapes. Our method encodes non-rectangular shapes with special identifiers, transforming the design domain into a format suitable for machine learning analysis. Using Residual Networks (ResNet) for forward prediction and evolutionary algorithms (EA) for inverse design, our approach achieves accurate and efficient predictions and designs. The results validate the effectiveness of our proposed method, with the forward prediction model achieving a loss below , and the inverse optimization model maintaining an error near 1 mm, which is low relative to the entire shape of the optimized model. These outcomes demonstrate the capability of our approach to accurately predict and design complex hierarchical structures in 4D printing applications.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"90 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D Cu3N nanowire/Cu foam composite host enables high-capacity and long-storage lithium battery 三维 Cu3N 纳米线/铜泡沫复合宿主可实现高容量和长储能锂电池

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-07 DOI: 10.1016/j.apmt.2024.102378

Jialu Liu, Haijun Tian, Yingke Zhou, Enmin Xu, Ping Li, Xiaohui Tian, Zhongzhi Yuan

{"title":"3D Cu3N nanowire/Cu foam composite host enables high-capacity and long-storage lithium battery","authors":"Jialu Liu, Haijun Tian, Yingke Zhou, Enmin Xu, Ping Li, Xiaohui Tian, Zhongzhi Yuan","doi":"10.1016/j.apmt.2024.102378","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102378","url":null,"abstract":"Lithium batteries are widely used in electronic and medical devices for the advantages of high energy/power densities and low self-discharge. However, the active lithium metal anode can react with electrolyte to form unstable solid electrolyte interface (SEI) and affect the rate performance and stability of lithium batteries. In this work, we design a 3D Cu foam (CF) based copper nitride nanowire (CuN NW) array, and further construct stable 3D composite Li anode by molten lithium metal infusion method. CuN NWs can improve the lithiophilicity and ionic conductivity, and provide high specific surface area, uniform local current density and abundant diffusion channels for lithium-ion flux. The designed 3D CuN NW/Cu foam electrode achieves uniform lithium deposition, excellent discharge performance and stability under high temperature and long-term storage conditions. The Li@CuN NW/CF-CF battery exhibits excellent discharge specific capacity of 1080 mAh g (0.1 C) and remarkable rate capacity of 546 mAh g (8 C). After 60 days of storage at room temperature and 55 °C, the battery also demonstrates excellent storage performance of 874 and 627 mAh g. This work provides a facile and effective strategy for designing stable composite Li anode with a LiN-rich SEI for high-performance lithium batteries.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"3 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient catalytic debinding feedstock design for material extrusion additive manufacturing of low warpage and high-density titanium alloy 用于低翘曲和高密度钛合金材料挤压添加制造的高效催化脱脂原料设计

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-07 DOI: 10.1016/j.apmt.2024.102383

Mengxiong Chen, Zhonghua Yi, Huiwen Xiong, Heng Zou, Xiao Kang, Lei Zhang, Jianpeng Zou, Kechao Zhou

{"title":"Efficient catalytic debinding feedstock design for material extrusion additive manufacturing of low warpage and high-density titanium alloy","authors":"Mengxiong Chen, Zhonghua Yi, Huiwen Xiong, Heng Zou, Xiao Kang, Lei Zhang, Jianpeng Zou, Kechao Zhou","doi":"10.1016/j.apmt.2024.102383","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102383","url":null,"abstract":"Titanium alloy, known for its high strength and excellent biocompatibility, is widely used in aerospace, biomedical, and other fields. Material extrusion-based 3D printing offers a rapid design and effective way to fabricate complex shape part, but suffered from the time-consuming debinding and poor relative density. POM (Polyformaldehyde)-based binder has the fastest removal efficiency to achieve the debinding and sintering of parts with large cross-section. However, both the high viscosity and crystallinity limits its application in extrusion printing. In this paper, we significantly reduced the viscosity of POM-based feedstock by adding the plasticizer DOP (Dioctyl Phthalate). The crystallization properties and printing effects of conventional PP (Polypropylene) and newly developed PS (Polystyrene) as backbone binder were studied. The results showed that high crystallization increased the shrinkage of feedstock, causing warping and reduced mechanical properties of Ti-6Al-4V. With the PS as the backbone binder, the crystallization capacity of the feedstock was decreased and the warping was improved. High-density (98.62 ± 0.25 %) titanium alloy (TC4) was obtained, with an ultimate tensile strength of 948.4 ± 3.7 MPa, an elongation of 5.91 ± 0.9 %. 3D cubic samples with thickness of 30, 35, and 40 mm and a scaled human leg bone model with a thickness of 23 mm were successfully fabricated. This study has reference significance for the application of 3D printing of POM-based binder system and the preparation of titanium alloy with large cross-section.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"6 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Space-confined synthesis of two-dimensional InP crystals for high-performance self-powered Schottky photodiode 用于高性能自供电肖特基光电二极管的二维 InP 晶体的空间约束合成

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-06 DOI: 10.1016/j.apmt.2024.102376

Lin-Qing Yue, Yan-Lei Shi, Sheng Qiang, Nie-Feng Sun, Jing-Kai Qin, Liang Zhen, Cheng-Yan Xu

引用次数: 0

Nasal cartilage tissue engineering materials based on 3D bioprinting: Seed cells and dECM 基于三维生物打印技术的鼻软骨组织工程材料：种子细胞和 dECM

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-06 DOI: 10.1016/j.apmt.2024.102364

Wendan Jia, Xiaoning Yang, Zixian Liu, Lei Sun, Zhizhong Shen, Meng Li, Hulin Zhang, Yang An, Shengbo Sang

{"title":"Nasal cartilage tissue engineering materials based on 3D bioprinting: Seed cells and dECM","authors":"Wendan Jia, Xiaoning Yang, Zixian Liu, Lei Sun, Zhizhong Shen, Meng Li, Hulin Zhang, Yang An, Shengbo Sang","doi":"10.1016/j.apmt.2024.102364","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102364","url":null,"abstract":"The nasal cartilage plays a crucial role in supporting the nose and facilitating respiration, however has a limited regenerative capabilities once damaged. Nasal cartilage tissue engineering presents a promising avenue for addressing cartilage lesions and regeneration. Additionally, surgical procedures such as tumor removal, trauma reconstruction, or rhinoplasty require the surgeon to meticulously shape the cartilage to conform to the patient's individual contours, a task that is both time-consuming and challenging. The advent of three-dimensional (3D) bioprinting technology provides a potential solution to this predicament, as it enables the precise fabrication of intricate and personalized tissue constructs. Furthermore, the decellularized extracellular matrix (dECM) with native 3D structures and various bioactive components, which mimic an optimal non-immune environment combined with the seed cell, especially stem cell-recellularized construct, is considered an ideal choice for regenerating functional organs/tissues. In view of this, the paper provides a comprehensive overview of the 3D bioprinting technologies and seed cells and dECM biomaterials for 3D bioprinting nasal cartilage tissue engineering, and look forward to the application prospect of 3D bioprinting of nasal cartilage regeneration research.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"92 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Material extrusion-based 3D printed capacitor optimization: Enhancing performance with ZnO and Cu-CNT reinforced ABS composites 基于材料挤压的 3D 打印电容器优化：利用氧化锌和铜-碳纳米管增强 ABS 复合材料提高性能

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-06 DOI: 10.1016/j.apmt.2024.102363

Nidhin Divakaran, Alex Y, Agneyarka Mohapatra, Smita Mohanty

{"title":"Material extrusion-based 3D printed capacitor optimization: Enhancing performance with ZnO and Cu-CNT reinforced ABS composites","authors":"Nidhin Divakaran, Alex Y, Agneyarka Mohapatra, Smita Mohanty","doi":"10.1016/j.apmt.2024.102363","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102363","url":null,"abstract":"In recent years, there has been a growing interest in 3D printed electronics due to its potential to revolutionize the electronics industry. 3D printed electronics assists in creation of customized electronic devices that can be tailored to specific needs. Our current work focusses on developing material extrusion (MEX) 3D printed capacitors using Acrylonitrile Butadiene Styrene (ABS) as base polymer. This research aims to investigate the effect of incorporating nanofillers, specifically zinc oxide (ZnO) and copper-carbon nanotubes (Cu-CNT), on the overall properties of polymer composites. The composites were prepared by melt blending ABS with varying concentrations of itaconic acid modified (m-ZnO) and Cu-CNT, followed by 3D printing into capacitor structures. The goal is to enhance the electrical performance of these composites and enable their use in 3D printed capacitors. The studies derived the influence of m-ZnO in enhancing the capacitance and dielectric constant of ABS polymer, while the presence of Cu-CNT augmented the electrical conductivity of ABS by 9 orders of magnitude. These nanofillers also contributed in amplifying tensile strength of ABS polymer along with its thermal properties. Further, the paper describes the design of a 3D printed capacitor that uses ABS/m-ZnO as the dielectric layer and ABS/Cu-CNT as the conducting layer, thereby making it a suitable candidate for developing capacitors with higher capacitance, energy storage devices with improved energy density, and sensors with higher sensitivity.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"16 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0