Science and Engineering of Composite Materials最新文献_第6页

Metakaolin-based geopolymers filled with volcanic fly ashes: FT-IR, thermal characterization, and antibacterial property 粉煤灰填充偏高岭土聚合物:红外光谱、热特性和抗菌性能

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2023-01-01 DOI: 10.1515/secm-2022-0192

I. Blanco, A. D'angelo, Veronica Viola, L. Vertuccio, M. Catauro

{"title":"Metakaolin-based geopolymers filled with volcanic fly ashes: FT-IR, thermal characterization, and antibacterial property","authors":"I. Blanco, A. D'angelo, Veronica Viola, L. Vertuccio, M. Catauro","doi":"10.1515/secm-2022-0192","DOIUrl":"https://doi.org/10.1515/secm-2022-0192","url":null,"abstract":"Abstract In countries where volcanic activity is widespread, fly ash (FA) formation can represent both a waste to be disposed of and a resource of inorganic substances that can be utilized. Among the technologies able to incorporate FA, geopolymers (GP) or inorganic aluminosilicate amorphous materials are very suitable for this purpose. In this study, GP are realized using metakaolin (MK), sodium hydroxide solution (NaOH 8 M), sodium silicate solution (Na2SiO3), and FA as filler (20 wt% with respect to MK content). The samples were cured at 25 or 40°C for 24 h and the physicochemical, thermal, and antibacterial properties of this material through the integrity test, weight loss test, Fourier-transform infra-red spectroscopy (FT-IR), thermogravimetric analysis (TGA), and Kirby-Bauer assay were assessed. Integrity and weight loss tests indirectly revealed the stability of the macroscopic 3D networks and that the curing at 40°C led to more stable GP. The shift of the Si–O–T absorption band (from 1,090 cm−1 of the MK to 1,017–1,012 cm−1 of the specimens with and without FA) in FT-IR spectra suggested the occurrence of the geopolymerizazion reactions, while TGA study confirmed the higher stability of samples cured at 40°C (with a mass loss equal to 7–13% at 800°C under nitrogen atmosphere). Finally, the antimicrobial activity shed light on the ability of the synthesized GP with the filler and treated at 40°C to have a great effect against Escherichia coli and Pseudomonas aeruginosa.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43801104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 5

Prediction of the rubberized concrete behavior: A comparison of gene expression programming and response surface method 橡胶混凝土性能预测:基因表达编程与响应面法的比较

4区材料科学

Science and Engineering of Composite Materials Pub Date : 2023-01-01 DOI: 10.1515/secm-2022-0222

Rana Faisal Tufail, Danish Farooq, Muhammad Faisal Javed, Tahir Mehmood, Ahsen Maqsoom, Hassan Ashraf, Ahmed Farouk Deifalla, Jawad Ahmad

{"title":"Prediction of the rubberized concrete behavior: A comparison of gene expression programming and response surface method","authors":"Rana Faisal Tufail, Danish Farooq, Muhammad Faisal Javed, Tahir Mehmood, Ahsen Maqsoom, Hassan Ashraf, Ahmed Farouk Deifalla, Jawad Ahmad","doi":"10.1515/secm-2022-0222","DOIUrl":"https://doi.org/10.1515/secm-2022-0222","url":null,"abstract":"Abstract The use of rubber in concrete to partially substitute mineral aggregates is an effort to decrease the global amount of scrap tires. This study investigates the behavior of rubberized concrete (RC) with various replacement ratios (0–50%) by volume and replacement type (fine, coarse, and fine-coarse) using soft computing techniques. The uniaxial compressive strength (CS), elastic modulus (EM), and ductility (D) are measured, and the effect of rubber content and the rubber aggregate type on the properties of RC is investigated. Scanning electron microscopy and X-ray diffraction analyses are made to determine its microstructural and chemical composition. This article compares the efficiency of two RC models using a recently developed artificial intelligence technique, i.e., gene expression programming (GEP) and conventional technique, i.e., response surface method (RSM). Statistical models are developed to predict the CS, TS, EM, and D. The mathematical models are validated using determination coefficient ( R 2 ) and adjusted coefficient ( R 2 adj), and they are found to be significant. Furthermore, both methods (i.e., RSM and GEP) are very well correlated with the experimental data. The GEP is found to be more effective at predicting the experimental test results for RC. The projected methods can be executed for any practical value of RC.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135151612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Analysis of multiple impact tests’ damage to three-dimensional four-directional braided composites 三维四向编织复合材料的多次冲击损伤分析

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0023

S. Yan, Xixi Chen, Yun Zhao

{"title":"Analysis of multiple impact tests’ damage to three-dimensional four-directional braided composites","authors":"S. Yan, Xixi Chen, Yun Zhao","doi":"10.1515/secm-2022-0023","DOIUrl":"https://doi.org/10.1515/secm-2022-0023","url":null,"abstract":"Abstract This article was designed with a plurality of impact tests of three-dimensional four-directional braided composites, and the impact response of specimen impacted by a circular punch was studied. Ultrasonic C-scanning was used to detect the internal damage area to study the damage propagation process under multiple impact loads. The finite-element software ABAQUS was used to model the meso-structure of three-dimensional four-directional braided composites. Based on material characteristics, the three-dimensional Hashin damage criterion was used for the fiber bundle, and the maximum stress criterion was used for the matrix to judge the material damage. Combined with test and simulation results, the failure mode and damage evolution process of the specimen under multiple impact loads were studied. The results showed that the impact resistance of the three-dimensional woven composite material is affected by the braided angle. The larger the braided angle of the specimen, the better the impact resistance. The damaged area of the large braided angle material expanded to the periphery, and the damaged area of the small braided angle material was primarily developed in the longitudinal direction. The failure modes of the specimen during the impact process were primarily a longitudinal tensile failure of fiber bundles, transverse tensile failure and transverse compression failure of fiber bundles and matrix.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"242 - 264"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49391162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Multiscale heat conduction and fractal oxidation behaviors of needle-punched carbon/carbon composites 针刺碳/碳复合材料的多尺度导热和分形氧化行为

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0174

Meng Han, Chuwei Zhou, V. Silberschmidt, Qinsheng Bi

引用次数: 0

Effects of local fiber discontinuity on the fatigue strength parameter at the fiber inclusion corner in fiber-reinforced composites 纤维增强复合材料纤维夹杂角处局部纤维不连续对疲劳强度参数的影响

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0021

Cong Wang, X. Ping, Xing Wang

引用次数: 0

Discussion of ceramic bar reinforced TWIP steel composite structure 陶瓷棒增强TWIP钢组合结构的探讨

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0173

Guorui Sun, Wang Qi, Hou Miaoyu

引用次数: 0

Wear and corrosion mechanisms of Ni–WC coatings modified with different Y2O3 by laser cladding on AISI 4145H steel AISI 4145H钢激光熔覆不同Y2O3改性Ni–WC涂层的磨损和腐蚀机制

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0163

Qizheng Cao, L. Fan, Haiyan Chen, Yue Hou, L. Dong, Zhiwei Ni

{"title":"Wear and corrosion mechanisms of Ni–WC coatings modified with different Y2O3 by laser cladding on AISI 4145H steel","authors":"Qizheng Cao, L. Fan, Haiyan Chen, Yue Hou, L. Dong, Zhiwei Ni","doi":"10.1515/secm-2022-0163","DOIUrl":"https://doi.org/10.1515/secm-2022-0163","url":null,"abstract":"Abstract In order to evaluate the effect of rare earth Y2O3 on the wear and corrosion properties of WC–Ni composite coatings, X-ray diffraction, scanning electron microscopy(SEM), electrochemical polarization curve, electrochemical impedance spectroscopy (EIS), and friction and wear tests were used to analyze the metallographic structure, corrosion characteristics in simulated seawater and friction and wear principle of the composite coatings. Results of SEM revealed that the microstructure of the Y2O3 added coatings was refined with the grains changing smaller and the impurity disappearing. The EIS results proved that the addition of Y2O3 brought a positive influence on the corrosion resistance by reducing the capacitance and increasing the R f and R c. The hardness of the coatings with Y2O3 addition tends to be smooth without wild fluctuation, and the coating with 0.5 wt% Y2O3 owned the hardness values reaching 850 HV. With the addition of rare earth elements, the coefficient of fiction values decreased, reaching the lowest (0.3418) at the content of Y2O3 of 0.5 wt%. The surface of the coating without Y2O3 appears grooved due to the abrasive wear; the coatings with Y2O3 did not suffer serious wear and tear. The coating with 0.5 wt% Y2O3 exhibited the best corrosion resistance and wear resistance properties in all the specimens.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"364 - 377"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46998308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Influence of hydrothermal aging on the mechanical performance of foam core sandwich panels subjected to low-velocity impact 水热老化对泡沫芯芯夹芯板低速冲击力学性能的影响

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0003

Youping Liu, Ye Wu

{"title":"Influence of hydrothermal aging on the mechanical performance of foam core sandwich panels subjected to low-velocity impact","authors":"Youping Liu, Ye Wu","doi":"10.1515/secm-2022-0003","DOIUrl":"https://doi.org/10.1515/secm-2022-0003","url":null,"abstract":"Abstract The effect of hydrothermal aging on the impact resistance of foam core sandwich panels is studied in this study. The sandwich panels with glass fiber-reinforced skins and polyurethane foam core were fabricated and then were treated with different hydrothermal aging conditions. The moisture absorption characteristic of the composite skins was evaluated. A modified Fickian formulation was proposed to predict the moisture absorption behavior of composite skins. The low-velocity impact resistance of the aged sandwich panels was determined at three different impact energies. The impact responses including contact force, deflection, and dissipated energy of the sandwich panels with and without hydrothermal aging were analyzed. The macroscopic and microscopic damage morphologies were observed by visual inspection and scanning electron microscope methods, respectively. The damage mechanism of the aged panels was revealed. Results indicate that the impact resistance of aged sandwich panels is degraded, and the performance degradation is larger with increasing aging temperature. Compared to the panel without hydrothermal aging, the reduction of the contact force is 35.69%, and the increase of the deflection is 71.43% for the aged panel at 70°C aging temperature. The fiber/matrix interfacial cohesive performance is degraded resulting from the hydrothermal aging.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"9 - 22"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41854051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Vibration and noise reduction of pipelines using shape memory alloy 形状记忆合金管道减振降噪

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0015

Ju Qiu, I. Stiharu

引用次数: 2

Fabrications and microstructure analysis of cobalt-based coatings by an easy-coating and sintering process 钴基涂层的简易涂覆和烧结制备及微观结构分析

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0178

Lingyu Meng, M. Hu, Keming Jia

引用次数: 0