ES Materials & Manufacturing最新文献_第6页

Mechanical and Conductive Properties of Smart Cementitious Composites with Conductive Rubber Crumbs 导电橡胶屑智能胶凝复合材料的力学性能和导电性能

ES Materials & Manufacturing Pub Date : 2020-02-16 DOI: 10.30919/esmm5f711

Wenkui Dong, Wengui Li, K. Vessalas, Kejin Wang

{"title":"Mechanical and Conductive Properties of Smart Cementitious Composites with Conductive Rubber Crumbs","authors":"Wenkui Dong, Wengui Li, K. Vessalas, Kejin Wang","doi":"10.30919/esmm5f711","DOIUrl":"https://doi.org/10.30919/esmm5f711","url":null,"abstract":"Massive waste rubber products become very challenging because their disposal generates negative impacts on the ecological environments. The effect of conductive rubber crumbs replacing the fine aggregate on the physical, mechanical properties and electrical characteristics of cement composites were investigated in this study. The results show that the flowability of cement mortar increased when the rubber crumbs substitution rate lower than 10%, but decreased when the substitution rate higher than 10%. The compressive strengths of rubberized mortar were decreased with the increase of rubber crumbs. However, as the amount of rubber crumbs increased, less reduction on compressive strength was observed for the cement mortar at water-to-binder (W/B) ratio of 0.42, because of the better flowability. In terms of the electrical properties, both the near-surface resistivity and the volumetric resistivity of rubberized mortar were increased with the curing age because of the cement hydration. The near-surface resistivity of mortar was limitedly affected by conductive rubber crumbs, while the volumetric resistivity did gradually decrease with the increase of rubber content. The developed cement mortar containing recycled conductive rubber crumbs can be used for manufacturing self-sensing concrete.","PeriodicalId":11851,"journal":{"name":"ES Materials & Manufacturing","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82045182","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: 26

Materials Properties and Manufacturing Processes 材料特性和制造工艺

ES Materials & Manufacturing Pub Date : 2019-12-25 DOI: 10.30919/esmm5f616

Liping Wang

{"title":"Materials Properties and Manufacturing Processes","authors":"Liping Wang","doi":"10.30919/esmm5f616","DOIUrl":"https://doi.org/10.30919/esmm5f616","url":null,"abstract":"Materials properties highly depend on the manufacturing processes. In this issue, nine recent studies reported on how to understand and improve the (i.e., optical, mechanical, thermal, piezoelectric, etc) with the manufacturing processes for different applications. Sun et al. (doi: 10.30919/esmm5f605) provided a comphrensive review on the recent progress in hot embossing of polymer materials for micro/nanoscale manufacturing, including plate-to-plate, roll-to-plate, and roll-to-roll forms. Research in simulation and mold fabrication for hot embossing were discussed, the various applications of polymer processing were highlighted with systematic catalogs, and challenges and future directions were outlooked. In the area of piezoelectrics, polyvinylidene fluoride (PVDF) attracts much attention for energy harvesting because of its superior elastic properties, high flexibility and low cost. In the work by Han et al. (doi: 10.30919/esmm5f612), they developed a novel approach to increase the -phase concentration of electrospun PVDF nanofibers β during the manufacturing process. With comprehensive materials characterizations with SEM, Energy Dispersive X-ray, and infrared spectroscopy, they found that high-quality PVDF fibers can be obtained by high molecular weight with electrospinning, and confirmed the improved polarization of PVDF fibers with zinc oxide nanoparticle dopants. Wu el al. (doi: 10.30919/esmm5f601) demonstrated the improved interlaminar shear strength by 28.4% and impact toughness by 53.3% of carbon fibers unsaturated polyester composites by a vinyl ester sizing agent containing vinyl-functional carbon nanotubes. After studying the surface characteristics and interfacial properties of the composites before and after treated with the sizing agent, the improved wettability, chemical bonding and mechanical interlocking were found to be associated with the enhanced interfacial adhesion by the sizing agent. In the communication by Tian et al. (doi: 10.30919/esmm5f603), the microwave dielectric properties of Li Mg Zr O ceramics prepared 6 7 3 16","PeriodicalId":11851,"journal":{"name":"ES Materials & Manufacturing","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90117669","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

A New Machine Learning Algorithm to Optimize A Reduced Mechanism of 2-Butanone and the Comparison with Other Algorithms 一种新的优化2-丁酮还原机制的机器学习算法及其与其他算法的比较

ES Materials & Manufacturing Pub Date : 2019-12-23 DOI: 10.30919/esmm5f615

Yunpeng Wang, Shibo Liu, Jia Cheng, Xiao Wan, Wentao Feng, Nuo Yang, Chun Zou

引用次数: 12

Amino Carbon Nanotube Modified Reduced Graphene Oxide Aerogel for Oil/Water Separation 氨基碳纳米管修饰的还原氧化石墨烯气凝胶用于油/水分离

ES Materials & Manufacturing Pub Date : 2019-12-18 DOI: 10.30919/esmm5f611

Jingyi Cai, Jing Tian, H. Gu, Zhanhu Guo

引用次数: 56

Annealing Studies of Nanoporous Si Thin Films Fabricated by Dry Etch 干蚀刻法制备纳米多孔硅薄膜的退火研究

ES Materials & Manufacturing Pub Date : 2019-12-18 DOI: 10.30919/esmm5f608

Q. Hao, Yue Xiao, F. Medina

引用次数: 3

Approaches for Increasing the β-phase Concentration of Electrospun Polyvinylidene Fluoride (PVDF) Nanofibers 提高静电纺聚偏氟乙烯(PVDF)纳米纤维β相浓度的方法

ES Materials & Manufacturing Pub Date : 2019-12-18 DOI: 10.30919/esmm5f612

Guangshuai Han, Yen-fang Su, Yining Feng, Na Lu

引用次数: 14

Temperature-dependent Optical Characterization of VO2 Thin Film Prepared from Furnace Oxidation Method 炉氧化法制备VO2薄膜的温度依赖性光学表征

ES Materials & Manufacturing Pub Date : 2019-12-17 DOI: 10.30919/esmm5f607

Sydney Taylor, Jeremy Chao, Linshuang Long, Niko Vlastos, Liping Wang

引用次数: 6

Multifunctional Lightweight Aggregate Containing Phase Change Material and Water for Damage Mitigation of Concrete 含相变材料和水的多功能轻骨料混凝土减损

ES Materials & Manufacturing Pub Date : 2019-12-11 DOI: 10.30919/esmm5f606

Wenyu Liao, Aditya Kumar, K. Khayat, Hongyan Ma

{"title":"Multifunctional Lightweight Aggregate Containing Phase Change Material and Water for Damage Mitigation of Concrete","authors":"Wenyu Liao, Aditya Kumar, K. Khayat, Hongyan Ma","doi":"10.30919/esmm5f606","DOIUrl":"https://doi.org/10.30919/esmm5f606","url":null,"abstract":"This paper presents an innovative concept of multifunctional lightweight aggregate, which is produced by loading phase change material (PCM) into the interior of lightweight sand (LWS) and sealing the surface pores using water. The PCM loaded in the LWS functionalizes it as a temperature management agent in concrete, and the water in surface pores enables internal curing. It has been found that the particle shape and pore structure of crushed expanded shale LWS makes it an ideal carrier for PCM, loading sufficient PCM and maintaining better (compared to natural sand) mechanical interlocking. When coupled with the internal curing effect, the LWS yields an interpenetrated interfacial transition zone with the cement paste, leading to a compressive strength comparable to natural sand mortar. The hydration products penetrated into the surface pores also helps stabilizing PCM in the LWS. However, any PCM residuum non-stabilized in LWS tends to compromise the strength. Under an optimized scenario, the LWS-PCM composite aggregate is produced by grading, PCM impregnation, rinsing, and water saturation. A mortar proportioned with this aggregate yields comparable 28-day strength to the reference mortar and a 63% lower autogenous","PeriodicalId":11851,"journal":{"name":"ES Materials & Manufacturing","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84644188","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: 23

Development and Application of Hot Embossing in Polymer Processing: A Review 热压成型技术在聚合物加工中的发展与应用综述

ES Materials & Manufacturing Pub Date : 2019-12-09 DOI: 10.30919/esmm5f605

S. Jingyao, Zhuang Jian, Ying Liu, Hong Xu, Jesse Horne, Evan K. Wujcik, Haichao Liu, J. Ryu, Daming Wu, Zhanhu Guo

引用次数: 29

Effect of A Vinyl Ester-Carbon Nanotubes Sizing Agent on Interfacial Properties of Carbon Fibers Reinforced Unsaturated Polyester Composites 乙烯基酯-碳纳米管施胶剂对碳纤维增强不饱和聚酯复合材料界面性能的影响

ES Materials & Manufacturing Pub Date : 2019-12-06 DOI: 10.30919/ESMM5F601

Zijian Wu, Lin Li, Ning Guo, Rongchen Yang, D. Jiang, Mingyu Zhang, Mingyan Zhang, Yudong Huang, Zhanhu Guo

引用次数: 36