材料科学与化学工程(英文)最新文献_第9页

Predicting Mass Transfer Extraction with Steam Flow, Applying Boundary-Layer Concepts 应用边界层概念预测蒸汽流传质萃取

材料科学与化学工程(英文) Pub Date : 2021-06-29 DOI: 10.4236/msce.2021.96004

J. A. Rocha-Uribe, L. C. Soto-Armenta, Alfredo Hernández-ruiz, J. Jimenez-Ocaña

引用次数: 0

A Simple Elasto-Plastic Iterative Method by Fem for the Analysis of Plane Articulated Truss: Case of a 3-Bar Truss 平面铰接桁架分析的简单弹塑性有限元迭代法——以三杆桁架为例

材料科学与化学工程(英文) Pub Date : 2021-06-29 DOI: 10.4236/msce.2021.96002

Djomi Rolland, Fokam Bopda Christian, K. Bienvenu, K. Abraham, Mbobda Gérard

引用次数: 0

A Mini Review on Testing Methods for Mechanical Properties of Natural Fibre Honeycomb Sandwich Structure and Fractography Analysis 天然纤维蜂窝夹层结构力学性能测试方法及断口分析综述

材料科学与化学工程(英文) Pub Date : 2021-05-21 DOI: 10.4236/MSCE.2021.95003

Nahiyan Al-Azad, Nur Hafidah Binti Dedifitrianto, Mohd Kamal Mohd Shah

{"title":"A Mini Review on Testing Methods for Mechanical Properties of Natural Fibre Honeycomb Sandwich Structure and Fractography Analysis","authors":"Nahiyan Al-Azad, Nur Hafidah Binti Dedifitrianto, Mohd Kamal Mohd Shah","doi":"10.4236/MSCE.2021.95003","DOIUrl":"https://doi.org/10.4236/MSCE.2021.95003","url":null,"abstract":"This paper is a review of the past research of mechanical testing methods for natural fibre honeycomb sandwich structure as well as failure modes analysis at a microscopic level by using Scanning Electron Microscope (SEM). As the world is garnering attention towards renewable resources for environmental purposes, studies of natural fibre have been increasing as well as the application of natural fibre throughout various industries such as aerospace, automobiles, and construction sectors. This paper is started with brief information regarding the honeycomb sandwich structure, introduction to natural fibre, its applications as well as the factors affecting the performances of the structure. Next, the mechanical testing methods are listed out as well as the expected outcomes obtained from the respective testing. The mechanical properties are also identified by conducting lab tests according to the ASTM standard for sandwich and core structures. The microstructure of the deformed samples is then examined under Scanning Electron Microscope (SEM) by using different magnifications to study the failure mechanisms of the samples. The images obtained from the SEM test are analyzed by using fractography which will show the failure modes of the samples. This article is based on past research conducted by professional on the related topic.","PeriodicalId":66693,"journal":{"name":"材料科学与化学工程(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43242591","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

Study of Potassium Recovery from Biomass Ash Using Tartaric Acid and Syngenite Method 酒石酸-正正岩法从生物质灰中回收钾的研究

材料科学与化学工程(英文) Pub Date : 2021-05-21 DOI: 10.4236/MSCE.2021.95004

Afan Bagus Mananda, H. Harada, Hadi Imran A. Halem, Y. Mitoma, Fujita Keiko

引用次数: 4

Experimental and Theoretical Investigations on Copper Corrosion Inhibition by Cefixime Drug in 1M HNO3 Solution 头孢克肟在1M HNO3溶液中缓蚀铜的实验与理论研究

材料科学与化学工程(英文) Pub Date : 2021-05-21 DOI: 10.4236/MSCE.2021.95002

N. Y. S. Diki, N. H. Coulibaly, O. Kambire, A. Trokourey

{"title":"Experimental and Theoretical Investigations on Copper Corrosion Inhibition by Cefixime Drug in 1M HNO3 Solution","authors":"N. Y. S. Diki, N. H. Coulibaly, O. Kambire, A. Trokourey","doi":"10.4236/MSCE.2021.95002","DOIUrl":"https://doi.org/10.4236/MSCE.2021.95002","url":null,"abstract":"Cefixime, a third-generation semi-synthetic cephalosporin antibiotic was used as a copper corrosion inhibitor in 1M HNO3 solution. The study was conducted through the weight loss technique at 298 - 318 K and theoretical studies based on quantum chemistry. The studied drug inhibited the corrosion of copper in 1M HNO3 over the cefixime concentration range (0.02 - 2 mM). The inhibition efficiency increased with an increase in the inhibitor concentration to reach 91.07% at 2 mM, but decreased with an increase in temperature. The thermodynamic functions related to the adsorption of cefixime on the copper surface and that of the metal dissolution were computed and analyzed. The results point out spontaneous adsorption, mainly through a physisorption mechanism following Langmuir adsorption isotherm model and an endothermic dissolution process. Quantum chemical calculations were also performed at B3LYP level with 6-31G (d, p) basis set and lead to molecular descriptors such as EHOMO (energy of the highest occupied molecular orbital), ELUMO (energy of the lowest unoccupied molecular orbital), ΔE (energy gap) and μ (dipole moment). The global reactivity descriptors such as χ (electronegativity), χ (global hardness), S (global softness), and ω (electrophilicity index) were derived using Koopman’s theorem and analyzed. The local reactivity parameters, including Fukui functions and dual descriptors were determined and discussed. Experimental and theoretical results were found to be in good agreement.","PeriodicalId":66693,"journal":{"name":"材料科学与化学工程(英文)","volume":"09 1","pages":"11-28"},"PeriodicalIF":0.0,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47244888","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: 3

Control of Crystal Size and Morphology of Calcium Carbonate Crystal Polymorphism 碳酸钙晶体多晶性的晶粒大小和形态控制

材料科学与化学工程(英文) Pub Date : 2021-04-09 DOI: 10.4236/MSCE.2021.94005

Wakana Nagaki, N. Doki, M. Yokota, Kazuo Yamashita, Toshiji Kojima, Toshiyuki Tanaka

引用次数: 3

Superhydrophobic Coating Fabrication for Metal Protection Based on Electrodeposition Application: A Review 基于电沉积应用的金属防护超疏水涂层制备研究进展

材料科学与化学工程(英文) Pub Date : 2021-04-09 DOI: 10.4236/MSCE.2021.94008

R. H. Miller, Shugang Hu, Sonkarlay J. Y. Weamie, S. A. Naame, Dauda G. Kiazolu

{"title":"Superhydrophobic Coating Fabrication for Metal Protection Based on Electrodeposition Application: A Review","authors":"R. H. Miller, Shugang Hu, Sonkarlay J. Y. Weamie, S. A. Naame, Dauda G. Kiazolu","doi":"10.4236/MSCE.2021.94008","DOIUrl":"https://doi.org/10.4236/MSCE.2021.94008","url":null,"abstract":"In recent years, superhydrophobic media has attracted tremendous attention due to its industrial applicability value, especially in anti-corrosion performance. The superhydrophobic coating, which has a robust and water-repellent capacity, can catch the air to form several “airbags” on the substrate’s surface, isolating the corrosion media. Various superhydrophobic coating preparation technologies have been suggested, but each has its own set of flaws. On the other hand, electrodeposition, as a relatively mature industrial processing application, offers distinct advantages. However, until now, there have been few reviews on the electrodeposition preparation of anticorrosive superhydrophobic coatings. Therefore, the author has described several fabrication techniques based on superhydrophobic coatings in this review, including the advantages and disadvantages. Superhydrophobic coatings conventional concepts and wettability, as well as the model wetting concepts, have been reviewed. The coating processing status and the corrosion-resistant potential through the electrodeposition of metal and comparable composite are detailly encapsulated. Furthermore, electrodeposition parameters, including current density, crystal modifiers, and a deposition time of the coating morphology, are reported, following the ultrasonic-assisted, jet, pulse, and magnetic field-induced electrodeposition, respectively, as the recently developed technologies for preparing a coating. Finally, technology limitation is shown as well as the obstacles and prospects, and the improvement of the superhydrophobic coating’s durability as a prospects research focus has been recommended.","PeriodicalId":66693,"journal":{"name":"材料科学与化学工程(英文)","volume":"09 1","pages":"68-104"},"PeriodicalIF":0.0,"publicationDate":"2021-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43849903","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: 7

Carbon Dioxide Capture and Application Technology 二氧化碳捕集与应用技术

材料科学与化学工程(英文) Pub Date : 2021-04-09 DOI: 10.4236/MSCE.2021.94004

Jiamin Jin

引用次数: 0

Optical Properties of Chiral Azo-Schiff Base Mn(II) and Zn(II) Complexes with Silver Nanoparticles 手性偶氮席夫碱Mn（II）和Zn（II）与银纳米粒子配合物的光学性质

材料科学与化学工程(英文) Pub Date : 2021-04-09 DOI: 10.4236/MSCE.2021.94001

K. Saiga, T. Haraguchi, Y. Kitahama, T. Hosokai, H. Matsuzaki, Dohyun Moon, M. Sugiyama, M. Hara, T. Akitsu

{"title":"Optical Properties of Chiral Azo-Schiff Base Mn(II) and Zn(II) Complexes with Silver Nanoparticles","authors":"K. Saiga, T. Haraguchi, Y. Kitahama, T. Hosokai, H. Matsuzaki, Dohyun Moon, M. Sugiyama, M. Hara, T. Akitsu","doi":"10.4236/MSCE.2021.94001","DOIUrl":"https://doi.org/10.4236/MSCE.2021.94001","url":null,"abstract":"Herein we have originally designed chiral azo-salen Mn(II) and Zn(II) complexes for interacting silver nanoparticles (AgNPs) exhibiting localized surface plasmon resonance (LSPR). Understanding excited state and reaction intermediate during light irradiation to return to ground state may be important for such composite systems. Therefore, we investigated such optical properties for systems using time-resolved luminescence and transient absorption measurements. DMSO solutions of the four newly prepared and characterized complexes (MMn, MZn, CMn, and CZn) and ethanol solutions of the composite materials of each complex with AgNPs were served for optical measurements. The time-correlated single photon counting (TCSPC), the streak camera which is much shorter period of time than TCSPC and transient absorption measurement, was performed for the eight samples. The fluorescence lifetime of the sole complexes and the composite materials with AgNPs was derived from curve-fitting analysis of luminescence decay curves of TCSPC. Lifetime of the composite systems with AgNPs was longer than that of the corresponding sole metal complexes for three cases. It was revealed that composite systems may go through three reaction intermediates during relaxation from excited state to ground state.","PeriodicalId":66693,"journal":{"name":"材料科学与化学工程(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41533452","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: 1

Shock Induced Chemical Reactions of Intermetallic Mixture of Nickel and Aluminum and Associated Transition States 镍铝金属间混合物的冲击诱导化学反应及相关过渡态

材料科学与化学工程(英文) Pub Date : 2021-04-09 DOI: 10.4236/MSCE.2021.94007

V. Narayanan, S. Hanagud

{"title":"Shock Induced Chemical Reactions of Intermetallic Mixture of Nickel and Aluminum and Associated Transition States","authors":"V. Narayanan, S. Hanagud","doi":"10.4236/MSCE.2021.94007","DOIUrl":"https://doi.org/10.4236/MSCE.2021.94007","url":null,"abstract":"In this paper, numerical simulation of shock-induced chemical reactions of intermetallic mixtures is discussed. Specifically, the paper focuses on intermetallic mixture of nickel and aluminum. To initiate the chemical reactions, the thermal input or the shockwave should supply the energy to take the reactants, mixture of nickel and aluminum, to the transition state. Thus, for any numerical simulation or analysis of the shock or thermally induced chemical reaction in a continuum scale or a meso scale, it is necessary to identify the transition state. The transition state for the intermetallic mixture of nickel and the aluminum is identified in this paper and a result of the numerical simulation of the shock-induced chemical reaction, in a continuum scale is presented. The numerical solutions clearly show the chemical reactions, release of heat energy, increase of the temperature and the formation of products, following the transition state and the resulting shock-induced chemical reaction of a binary intermetallic energetic mixture of nickel and aluminum. The studies also show that the collapse of porosity is a mechanism that takes the reactants to the transition state, in shock-induced chemical reactions of binary intermetallic mixtures.","PeriodicalId":66693,"journal":{"name":"材料科学与化学工程(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47918815","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