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张明,王成毓
《中国工程科学》 2014年 第16卷 第4期 页码 83-86
通过溶胶-凝胶法一步合成疏水性且具备独特形貌的二氧化硅粒子,联合聚苯乙烯以滴涂的方式 于木材表面仿生合成了稳定性超疏水薄膜。经处理后的木材表面与水的静态接触角为153°,滚动角小于5°。通过扫描电子显微镜照片观察到该复合涂层拥有微米/亚微米的二维等级粗糙结构,该结构协同低表面能物质共同决定超疏水性木材的成功制得。此外,进一步研究了超疏水性木材表面的稳定性和耐久性。结果表明,该超疏水性木材于水、腐蚀性液体(酸液/碱液)、常见有机溶剂中以及一些常见条件下仍保留超疏水特性,为未来木材材料的应用领域扩展提供了有利条件。
Tubes with coated and sintered porous surface for highly efficient heat exchangers
Hong Xu, Yulin Dai, Honghai Cao, Jinglei Liu, Li Zhang, Mingjie Xu, Jun Cao, Peng Xu, Jianshu Liu
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 367-375 doi: 10.1007/s11705-018-1703-1
Surface modification is a direct and effective way to enhance the efficiency of heat exchangers. Surface modification by forming a microporous coated layer can greatly enhance the boiling heat transfer and thus achieve a high performance. In this paper, we systematically investigate the boiling behavior on a plain surface with/without sintered microporous coatings of copper powder. The results demonstrated that the sintered surface has a better performance in nucleate boiling due to the increased nucleation sites. The superheat degree is lower and the bubble departure diameter is larger for the sintered surface than for the plain surface, so the heat can be carried away more efficiently on the sintered surface. In addition, the heat transfer capacity on the sintered surface depends on both the powder size and the coating thickness for a high flux tube. The optimum heat transfer capacity can be obtained when the thickness of the microporous coating layer is 3–5 times of the sintered powder diameter. As a result, the heat transfer coefficient tube can be up to 3 times higher for the tube with a sintered surface than that with a plain surface, showing a pronounced enhancement in heat transfer and a high potential in chemical engineering industry application.
关键词: microporous coating layer surface modification boiling enhancement sintering
Long-term durability of onshore coated concrete —chloride ion and carbonation effects
Seyedhamed SADATI,Mehdi K. MORADLLO,Mohammad SHEKARCHI
《结构与土木工程前沿(英文)》 2016年 第10卷 第2期 页码 150-161 doi: 10.1007/s11709-016-0341-2
关键词: carbonation chloride ion corrosion service life surface coating
Anticorrosive composite self-healing coating enabled by solar irradiation
《化学科学与工程前沿(英文)》 2022年 第16卷 第9期 页码 1355-1366 doi: 10.1007/s11705-022-2147-1
关键词: self-healing coating phase transition photothermal effect corrosion protection
《化学科学与工程前沿(英文)》 2023年 第17卷 第12期 页码 2050-2060 doi: 10.1007/s11705-023-2343-7
关键词: LiMn2O4 lithium extraction surface coating cyclic stability Mn dissolution
Elastic modulus and thermal stress in coating during heat cycling with different substrate shapes
Daniel GAONA,Alfredo VALAREZO
《机械工程前沿(英文)》 2015年 第10卷 第3期 页码 294-300 doi: 10.1007/s11465-015-0351-0
The elastic modulus of a deposit (Ed) can be obtained by monitoring the temperature (?T) and curvature (?k) of a one-side coated long plate, namely, a one-dimensional (1D) deformation model. The aim of this research is to design an experimental setup that proves whether a 1D deformation model can be scaled for complex geometries. The setup includes a laser displacement sensor mounted on a robotic arm capable of scanning a specimen surface and measuring its deformation. The reproducibility of the results is verified by comparing the present results with Stony Brook University Laboratory’s results. The ?k-?T slope error is less than 8%, and the Ed estimation error is close to 2%. These values reveal the repeatability of the experiments. Several samples fabricated with aluminum as the substrate and 100MXC nanowire (Fe and Cr alloy) as the deposit are analyzed and compared with those in finite element (FE) simulations. The linear elastic behavior of 1D (flat long plate) and 2D (squared plate) specimens during heating/cooling cycles is demonstrated by the high linearity of all ?k-?T curves (over 97%). The Ed values are approximately equal for 1D and 2D analyses, with a median of 96 GPa and standard deviation of 2 GPa. The correspondence between the experimental and simulated results for the 1D and 2D specimens reveals that deformation and thermal stress in coated specimens can be predicted regardless of specimen geometry through FE modeling and by using the experimental value of Ed. An example of a turbine-blade-shaped substrate is presented to validate the approach.
关键词: in-plane Young’s modulus curvature temperature thermal stress coating
《能源前沿(英文)》 doi: 10.1007/s11708-023-0901-9
关键词: interconnector coating plasma spray electrochemical performance Cr diffusion inhibition solid oxide cells (SOCs)
《能源前沿(英文)》 2022年 第16卷 第5期 页码 876-877 doi: 10.1007/s11708-022-0832-x
The feasibility of coating by cooling crystallization on ibuprofen naked tablets
Fatima Mameri, Ouahiba Koutchoukali, Mohamed Bouhelassa, Anne Hartwig, Leila Nemdili, Joachim Ulrich
《化学科学与工程前沿(英文)》 2017年 第11卷 第2期 页码 211-219 doi: 10.1007/s11705-017-1619-1
关键词: coating solution crystallization ibuprofen tablets sucrose
《化学科学与工程前沿(英文)》 2023年 第17卷 第9期 页码 1244-1253 doi: 10.1007/s11705-022-2293-5
关键词: zinc-ion battery CaV8O20 polyaniline coating synergistic engineering high capacity long durability
A novel composite coating mesh film for oil-water separation
Futao QIN, Zhijia YU, Xinhui FANG, Xinghua LIU, Xiangyu SUN
《化学科学与工程前沿(英文)》 2009年 第3卷 第1期 页码 112-118 doi: 10.1007/s11705-009-0149-x
关键词: super-hydrophobic super-oleophilic composite coating mesh film separation of oil and water
《能源前沿(英文)》 2021年 第15卷 第3期 页码 772-780 doi: 10.1007/s11708-021-0783-7
关键词: photoelectrocatalysis hydrogen evolution Si photocathode mesoporous MoS2
Jia XU,Zhen-yu ZHOU,Zhong-yu PIAO
《机械工程前沿(英文)》 2016年 第11卷 第3期 页码 227-232 doi: 10.1007/s11465-016-0395-9
The accumulated damage process of rolling contact fatigue (RCF) of plasma-sprayed coatings was investigated. The influences of surface roughness, loading condition, and stress cycle frequency on the accumulated damage status of the coatings were discussed. A ball-on-disc machine was employed to conduct RCF experiments. Acoustic emission (AE) technique was introduced to monitor the RCF process of the coatings. AE signal characteristics were investigated to reveal the accumulated damage process. Result showed that the polished coating would resist the asperity contact and remit accumulated damage. The RCF lifetime would then extend. Heavy load would aggravate the accumulated damage status and induce surface fracture. Wear became the main failure mode that reduced the RCF lifetime. Frequent stress cycle would aggravate the accumulated damage status and induce interface fracture. Fatigue then became the main failure mode that also reduced the RCF lifetime.
关键词: accumulated damage spray coating rolling contact fatigue acoustic emission
Preparation of solar selective absorbing CuO coating for medium temperature application
HUANG Qunwu, WANG Yiping, LI Jinhua
《化学科学与工程前沿(英文)》 2007年 第1卷 第3期 页码 256-260 doi: 10.1007/s11705-007-0046-0
关键词: photoelectron spectroscopy temperature pretreatment absorptivity microscopy
DOW CORNING 1-2577 Conformal Coating as an efficient diffusion material for cathode in the microbial
Yanping HOU, Haiping LUO, Guangli LIU, Renduo ZHANG, Yong LUO, Bangyu QIN, Shanshan CHEN
《环境科学与工程前沿(英文)》 2013年 第7卷 第4期 页码 526-530 doi: 10.1007/s11783-013-0532-1
关键词: microbial fuel cell diffusion layer power density DOW CORNING1-2577 Conformal Coating
标题 作者 时间 类型 操作
Tubes with coated and sintered porous surface for highly efficient heat exchangers
Hong Xu, Yulin Dai, Honghai Cao, Jinglei Liu, Li Zhang, Mingjie Xu, Jun Cao, Peng Xu, Jianshu Liu
期刊论文
Long-term durability of onshore coated concrete —chloride ion and carbonation effects
Seyedhamed SADATI,Mehdi K. MORADLLO,Mohammad SHEKARCHI
期刊论文
Construction of nitrogen-doped carbon cladding LiMnO film electrode with enhanced stability for electrochemically selective extraction of lithium ions
期刊论文
Elastic modulus and thermal stress in coating during heat cycling with different substrate shapes
Daniel GAONA,Alfredo VALAREZO
期刊论文
Plasma spray coating on interconnector toward promoted solid oxide fuel cells and solid oxide electrolysis
期刊论文
Erratum to: Enhancing the photoelectrochemical performance of p-silicon through TiO coating decorated
期刊论文
The feasibility of coating by cooling crystallization on ibuprofen naked tablets
Fatima Mameri, Ouahiba Koutchoukali, Mohamed Bouhelassa, Anne Hartwig, Leila Nemdili, Joachim Ulrich
期刊论文
Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating
期刊论文
A novel composite coating mesh film for oil-water separation
Futao QIN, Zhijia YU, Xinhui FANG, Xinghua LIU, Xiangyu SUN
期刊论文
Enhancing the photoelectrochemical performance of p-silicon through TiO coating decorated with mesoporous
期刊论文
Accumulated damage process of thermal sprayed coating under rolling contact by acoustic emission technique
Jia XU,Zhen-yu ZHOU,Zhong-yu PIAO
期刊论文
Preparation of solar selective absorbing CuO coating for medium temperature application
HUANG Qunwu, WANG Yiping, LI Jinhua
期刊论文