Effect of stepped substrates on the interfacial adhesion properties of graphene membranes

2014 ◽  
Vol 16 (23) ◽  
pp. 11390-11397 ◽  
Author(s):  
Yan He ◽  
Wangbing Yu ◽  
Gang Ouyang
Keyword(s):  
Interfacial Adhesion ◽  
Substrate Surface ◽  
Adhesion Properties ◽  
Surface Parameters ◽  
Graphene Membranes

The dependence of the interfacial adhesion properties of graphene membranes on thickness and substrate surface parameters are investigated.

scholarly journals Research on Interfacial Cracking of a Cr Coating/Steel Substrate with and without Laser Pre-Quenching Treatment under Thermal Fatigue Loading

2012 ◽  
Vol 190-191 ◽  
pp. 543-546
Author(s):  
Ban Quan Yang ◽  
Guang Nan Chen ◽  
Xue Jun Chen ◽  
Wei Hai Sun ◽  
Hong Qian Chen ◽  
...  
Keyword(s):  
Thermal Fatigue ◽  
Interfacial Adhesion ◽  
Loading Condition ◽  
Steel Substrate ◽  
Substrate Surface ◽  
Fatigue Loading ◽  
Adhesion Properties ◽  
Quenched Steel ◽  
Cr Coating

The interfacial cracking behaviors of a chromium (Cr) coating/laser pre-quenched steel substrate system and a Cr coating/original steel substrate system under thermal fatigue loading were investigated in this work. The experiment results show that the Cr coating on the pre-quenched substrate surface exhibited a higher resistance of interfacial cracking than that of the Cr coating on the original substrate surface under the same loading condition. This indicates the technology of laser pre-quenching of steel substrate surface prior to plating the Cr coating can improve the interfacial adhesion properties between the coating and substrate.

Evaluation of interfacial properties of the silane blend sized glass fiber–epoxy composite by the microdroplet test

2016 ◽  
Vol 51 (11) ◽  
pp. 1573-1581 ◽  
Author(s):  
Somayeh Safi ◽  
Ali Zadhoush ◽  
Mahmood Masoomi
Keyword(s):  
Glass Fiber ◽  
Epoxy Matrix ◽  
Interfacial Adhesion ◽  
Matrix Material ◽  
Interfacial Properties ◽  
Material System ◽  
Critical Energy Release Rate ◽  
Adhesion Properties ◽  
The Impact ◽  
Scanning Electron

The performance of a composite material system depends critically on the interfacial characteristics of the reinforcement and the matrix material. In this study, the interfacial adhesion was tailored by the creation of textures on the glass fiber surface using inorganic-organic silane blends. A single-fiber microdroplet test was conducted to assess the interfacial properties between the textured glass surface and an epoxy matrix. The load–displacement curves from microdroplet tests were analyzed. The stress-based and energy-based micromechanic models of interfacial debonding and corresponding adhesional parameters (apparent and ultimate interfacial shear strength, friction stress, critical energy release rate, work of adhesion, and adhesional pressure) were applied for theoretical calculations. The results showed a clear trend for the impact of different silane blends on the interfacial properties. The specimens containing 75:25 and 50:50 of inorganic–organic silane blends show the most effective improvement in the interfacial adhesion properties between glass fiber and epoxy resin. Scanning electron microscopy was used to visualize the failure surface of the specimen after the microdroplet test. The scanning electron microscopic images indicated that the failure in the blend sized treated glass fiber–epoxy matrix specimen runs predominantly along the interphase and combines both cohesive failure in resin (the presence of some resin fragments) and adhesive failure (some bare fiber surfaces can be seen).

Interfacial Adhesion Properties of Oxygen Plasma Treated Polyketone Fiber with Natural Rubber

2012 ◽  
Vol 13 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Jong Sung Won ◽  
Hae Young Choi ◽  
Jae Jung Yoo ◽  
Han Na Choi ◽  
Da Kyung Yong ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Interfacial Adhesion ◽  
Oxygen Plasma ◽  
Adhesion Properties

scholarly journals Geopolymer: A Review on Physical Properties of Inorganic Aluminosilicate Coating Materials

2014 ◽  
Vol 803 ◽  
pp. 367-373 ◽  
Author(s):  
Mazlan Norkhairunnisa ◽  
M.N. Muhammad Fariz
Keyword(s):  
Coating Thickness ◽  
Interfacial Adhesion ◽  
Surface Effect ◽  
Substrate Surface ◽  
Chemical Properties ◽  
Cost Effective ◽  
Coating Materials ◽  
Geopolymer Matrix ◽  
Capacity Performance ◽  
Aluminosilicate Coating

Geopolymer is a potential material that can be used in many forms of applications such as for building, automotive, aerospace, and many more. It exhibits many excellent physical, thermal and chemical properties. Geopolymer material provides a cost effective and sustainable solution by recycle the hazardous residue material and it undergone green chemistry technique treatment. Geopolymerization process involves combination mixture of aluminosilicate from natural mineral or industrial waste such as fly ash or slag or rice husk ash with activated alkaline solution. This review paper exclusively explore more on the interfacial adhesion of geopolymer coating on substrate surface, effect of coating thickness and filler inclusion in geopolymer matrix system. Literature demonstrates that type of substrate and substrate surface plays a crucial role for good interfacial adhesion with geopolymer materials. In addition, coating thickness will affect the insulating capacity performance, while inclusion of filler can reduce the coating shrinkage problem.

Improving the interfacial properties of carbon fibers/vinyl ester composites by vinyl functionalization on the carbon fiber surface

RSC Advances ◽  
2016 ◽  
Vol 6 (35) ◽  
pp. 29428-29436 ◽  
Author(s):  
Xiuping Zhang ◽  
Liu Liu ◽  
Ming Li ◽  
Yanjie Chang ◽  
Lei Shang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Carbon Fibers ◽  
Vinyl Ester ◽  
Interfacial Adhesion ◽  
Fiber Surface ◽  
Interfacial Properties ◽  
Resin Composites ◽  
Vinyl Ester Resin ◽  
Adhesion Properties ◽  
Carbon Fiber Surface

APMA functionalized CFs can significantly improve the interfacial adhesion properties of the carbon fiber reinforced vinyl ester resin composites.

Fracture Behavior of Hydroxyapatite-Filled Polycaprolactone

2006 ◽  
Author(s):  
Shing-Chung Wong ◽  
Avinash Baji
Keyword(s):  
Adhesive Strength ◽  
Interfacial Adhesion ◽  
Fracture Behavior ◽  
Peel Test ◽  
Adhesive Bond ◽  
Bioactive Components ◽  
Fracture Characterization ◽  
Adhesion Properties ◽  
Essential Work Of Fracture ◽  
Work Of Fracture

This paper reports some fracture characterization results of hydroxyapatite (HAP)-filled poly(ε-caprolactone) (PCL). For the fracture toughness tests, the HAP concentration was steadily increased. The effect of HAP phase in PCL on the fracture and tearing toughnesses was investigated. The techniques of essential work of fracture (EWF) and tear strength were attempted. T-peel test was also used to evaluate the adhesive bond strength between HAP and PCL components using compression molded PCL-HAP-PCL laminates. Little is reported on the interfacial adhesion properties between bioactive components in scaffold development. The influence of PCL layer thickness (1.25, 2.5 and 3.5 mm) on adhesive strength between HAP and PCL was investigated. The adhesion between HAP and PCL components was found to be relatively strong; however, the thickness of PCL layers did not significantly influence the adhesive strength.

Deposition and Properties Studies of Superfine TiN Films with Magnetic Filter

2008 ◽  
Vol 32 ◽  
pp. 61-64 ◽  
Author(s):  
Ling Chen ◽  
De Chang Zeng ◽  
Wan Qi Qiu ◽  
Xin Wei Shi ◽  
Zheng Yi Liu
Keyword(s):  
High Speed ◽  
Substrate Surface ◽  
High Speed Steel ◽  
Scratch Test ◽  
Nanoindentation Test ◽  
Adhesion Properties ◽  
Tin Films ◽  
Crack Propagation Resistance ◽  
Magnetic Filter ◽  
Film Adhesion

Arc ion plating(AIP) has higher deposition rates, whereas macro-particles (MPs) make the film properties decreasing. In this paper, AIP with or without magnetic filter (MF or AIP) and composition of AIP followed with magnetic filter (MFAIP) were designed to deposit TiN films on silicon (Si) and high-speed steel(HSS), respectively. Scanning electron microscope (SEM), nanoindentation and microscratch tests were investigated. SEM showed that both the MF and the MFAIP films had a superfine layer among the columnar crystals grown vertically against substrate surface. However, the columnar crystals of MF films were leptosomatic and well-orientational, while MFAIP ones were coarse and short, and even ragged in size and orientation. Nanoindentation test results showed the highest hardness for MF films and the lowest one for AIP films. A new parameter Scratch Crack Propagation Resistance (CPRs) was introduced to evaluate the film adhesion properties in a scratch test. MF films had the highest adhesion. AIP films were most susceptible to failure as the CPRs was the lowest, although the Lc1 was higher than MFAIP ones. It was proposed that the MPs were effectively removed with the MF, and the MF layers were superfine to improve the properties of the films.

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