International Journal of Modern Physics B最新文献_第4页

Investigating the impact of extreme environments on the interlaminar performance of nanoparticle-reinforced carbon fiber composites 研究极端环境对纳米粒子增强碳纤维复合材料层间性能的影响

International Journal of Modern Physics B Pub Date : 2023-12-28 DOI: 10.1142/s0217979224400265

Se-Yoon Kim, Sanjay Kumar, Dong-Wook Hwang, Yun-Hae Kim

{"title":"Investigating the impact of extreme environments on the interlaminar performance of nanoparticle-reinforced carbon fiber composites","authors":"Se-Yoon Kim, Sanjay Kumar, Dong-Wook Hwang, Yun-Hae Kim","doi":"10.1142/s0217979224400265","DOIUrl":"https://doi.org/10.1142/s0217979224400265","url":null,"abstract":"This study investigates the influence of extreme environmental conditions on the fracture toughness of halloysite nanotube (HNT)-reinforced carbon fiber-reinforced polymer (CFRP) composites. The focus is on the impact of exposure to high humidity and its effects on the mechanical properties of the composites. The study reveals that exposure to high humidity enhances the fracture toughness of HNT-modified CFRP composites, attributed to the entrapped moisture between HNTs and the polymer matrix. This phenomenon enhances crack bridging and contributes to improved mechanical properties. Furthermore, the HNT-modified composites exhibit superior environmental degradation resistance compared to unmodified composites, demonstrating the potential of HNTs as reinforcement for advanced composite materials. The investigation underscores the significance of considering environmental factors in nanoparticle-reinforced composite design and applications, paving the way for the development of durable, high-performance materials capable of withstanding extreme conditions. The findings emphasize the need for continued research to enhance the durability and reliability of such composites, thereby offering sustainable solutions across a range of applications. This study contributes valuable insights towards the design and optimization of fracture-resistant composite materials for demanding environments.","PeriodicalId":509298,"journal":{"name":"International Journal of Modern Physics B","volume":"358 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139148932","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}

引用次数: 0

Structure, electronic and magnetic properties of the Al12N12 clusters encapsulated with transition metals 过渡金属包裹的 Al12N12 簇的结构、电子和磁性能

International Journal of Modern Physics B Pub Date : 2023-12-27 DOI: 10.1142/s0217979224504137

Zhi Li, Zhen Zhao

{"title":"Structure, electronic and magnetic properties of the Al12N12 clusters encapsulated with transition metals","authors":"Zhi Li, Zhen Zhao","doi":"10.1142/s0217979224504137","DOIUrl":"https://doi.org/10.1142/s0217979224504137","url":null,"abstract":"The metal-doped aluminum nitrides have attracted special attention as new technology-related materials owing to their combination of fullerene-like and metallic properties. The structure, electronic and magnetic properties of the TM@Al[Formula: see text]N[Formula: see text] clusters have been investigated by using first principles. The results indicate that the V@Al[Formula: see text]N[Formula: see text], Ni@Al[Formula: see text]N[Formula: see text], Zr@Al[Formula: see text]N[Formula: see text], Rh@Al[Formula: see text]N[Formula: see text], Ta@Al[Formula: see text]N[Formula: see text] and Pt@Al[Formula: see text]N[Formula: see text] clusters display more structural stability than their neighbors. The Sc@Al[Formula: see text]N[Formula: see text], V@Al[Formula: see text]N[Formula: see text], Mn@Al[Formula: see text]N[Formula: see text], Zn@Al[Formula: see text]N[Formula: see text], Y@Al[Formula: see text]N[Formula: see text], Nb@Al[Formula: see text]N[Formula: see text], Tc@Al[Formula: see text]N[Formula: see text], Ag@Al[Formula: see text]N[Formula: see text], Lu@Al[Formula: see text]N[Formula: see text], W@Al[Formula: see text]N[Formula: see text] and Hg@Al[Formula: see text]N[Formula: see text] clusters are more dynamically stable than their neighbors. The amount of charge transfer between the TM (TM=Ti, Y and Os) atoms and Al[Formula: see text]N[Formula: see text] clusters is the most. The maximum spin densities (3.025 [Formula: see text], 2.779 [Formula: see text] and 3.231 [Formula: see text]) of the TM@Al[Formula: see text]N[Formula: see text] clusters occur at the subgroup VIIB TM@Al[Formula: see text]N[Formula: see text] clusters.","PeriodicalId":509298,"journal":{"name":"International Journal of Modern Physics B","volume":"75 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153981","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}

引用次数: 0

Stability of tracking wheel mobile robot with teleoperation fuzzy neural network control system 采用遥操作模糊神经网络控制系统的跟踪轮移动机器人的稳定性

International Journal of Modern Physics B Pub Date : 2023-11-24 DOI: 10.1142/s0217979224400034

C. S. Sumathi, R. Ravi Kumar, V. Anandhi

引用次数: 0

Fractal-based approach on analyzing the trends of climate dynamics 基于分形的气候动力学趋势分析方法

International Journal of Modern Physics B Pub Date : 2023-11-24 DOI: 10.1142/s021797922440006x

M. Meenakshi, A. Gowrisankar

引用次数: 0

A computational description of time-dependent transport of a water-based nanofluid with hybrid nanocomposite Cu–Al2O3 over a parabolic surface by Keller-box scheme: A modified Buongiorno model 采用 Keller-box 方案对抛物面上带有 Cu-Al2O3 混合纳米复合材料的水基纳米流体随时间变化的传输进行计算描述：改进的布昂奥尔诺模型

International Journal of Modern Physics B Pub Date : 2023-11-23 DOI: 10.1142/s0217979224504009

Sohita Rajput, K. Bhattacharyya, Dimpal Sharma, Amit Kumar Pandey, Ali J. Chamkha

{"title":"A computational description of time-dependent transport of a water-based nanofluid with hybrid nanocomposite Cu–Al2O3 over a parabolic surface by Keller-box scheme: A modified Buongiorno model","authors":"Sohita Rajput, K. Bhattacharyya, Dimpal Sharma, Amit Kumar Pandey, Ali J. Chamkha","doi":"10.1142/s0217979224504009","DOIUrl":"https://doi.org/10.1142/s0217979224504009","url":null,"abstract":"This paper discusses the high heat transfer demand from application prospects. Hybrid nanofluid is a well-known liquid with higher heat transfer capabilities. Here, the time-dependent flow of hybrid nanocomposite, by hybridizing the metal (Cu) and metallic oxide (Al2O3) and inserting them into water-based nanofluid, is examined. The flow takes place over the upper half of a parabolic surface. The modified Buongiorno model is used to express the physical phenomenon in mathematical equations form. The governing system of partial differential equations (PDEs) is reduced to a system of ordinary differential equations (ODEs) by applying certain transformations. Computation of the final equations has been done by a numerical scheme, known as the Keller-box method. The significance of dimensionless flow causing physical parameters is shown through graphs and tables. The findings reveal that among the hybrid nanofluids with two types of nanoparticles varying from 0% to 5%, a nanofluid having 5% of both nanoparticles is the one with the maximum surface drag force and heat transport rate, which are 41.8% and 22.7% higher to water, respectively. A higher amount of Al2O3 than Cu results in a suitable hybrid combination for application purposes to produce higher cooling rate with less surface drag. Also, the thickness of the surface, unsteadiness, nanoparticles suspension and power index of wall temperature enhance the heat transfer rate. Thin parabolic surfaces experience less drag and have larger boundary layer thicknesses (momentum, thermal and concentration) as compared to thicker parabolic surfaces. Also, the addition of copper slows down the hybrid fluid flow field, but alumina magnifies the mobility of hybrid fluid.","PeriodicalId":509298,"journal":{"name":"International Journal of Modern Physics B","volume":"35 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139243025","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}

引用次数: 0