Study on the effect of interface bonding strength on the dielectric properties of epoxy nanocomposites

2016 ◽  
Author(s):  
Jing Sun ◽  
Peihong Zhang
Keyword(s):  
Dielectric Properties ◽  
Bonding Strength ◽  
Interface Bonding ◽  
Epoxy Nanocomposites ◽  
Interface Bonding Strength

Thermal Shock Behavior and Bonding Strength of MoSi2-BaO-Al2O3-SiO2 Gradient Porous Coating with Polymethyl Methacrylate Addition for Porous Fibrous Insulations

2018 ◽  
Vol 281 ◽  
pp. 493-498
Author(s):  
Ya Yu Su ◽  
Xiao Lei Li ◽  
Hui Jie Tang ◽  
Zhi Hao Zhao ◽  
Jian He
Keyword(s):  
Porous Structure ◽  
Thermal Shock ◽  
Bonding Strength ◽  
Thermal Shock Resistance ◽  
Porous Coating ◽  
Bonding Layer ◽  
Interface Bonding ◽  
Shock Resistance ◽  
Thermal Shock Behavior ◽  
Interface Bonding Strength

In order to improve the thermal shock behavior of high temperature resistant coating on porous fibrous referactory insulations, the MoSi2-BaO-Al2O3-SiO2(MoSi2-BAS) gradient porous coatings were designed by preparing a dense surface layer and a porous bonding layer with the method of brushing and subsequent sintering at 1773 K. The porous bonding layer was obtained by adding polymethyl methacrylate (PMMA) as pore former. As the content of PMMA increases, the MoSi2-BAS coatings changed from a dense structure into a gradient porous structure. The interface bonding strength and thermal shock resistance of the MoSi2-BAS coatings were investigated. The result shows that the as-prepared coating with gradient porous structure exhibited excellent thermal shock resistance, which remained gradient structure without cracking after thermal cycling 100 times between 1773 K and room temperature. And the interface bonding strength of the gradient porous coating reached 1.5±0.08 Mpa, which was much better than that of the dense coating.

Determining Interface Strength of Glass-Metal Bi-Layer Laminates Using Cross-Push Method

2007 ◽  
Vol 351 ◽  
pp. 126-130
Author(s):  
Yi Wang Bao ◽  
Si Jian Gao ◽  
Yan Fei Han ◽  
Ming Guan
Keyword(s):  
Shear Strength ◽  
Bond Strength ◽  
Bonding Strength ◽  
Interface Strength ◽  
Specimen Preparation ◽  
Metal Composite ◽  
Interface Bonding ◽  
Testing Approach ◽  
Interface Bonding Strength ◽  
Glass Metal

Bond strength of metal-glass bilayer laminate was determined via a simple testing approach using cross-bonded sample and a special fixture. Tensile and shear strength in the interface for glass-metal composite were obtained by this way. It is demonstrated that the strength can be accurately determined when it is lower than the glue strength but it is invalid if the strength is higher than the glue strength. The specimen preparation and testing principle is introduced for determining the interface bonding strength of coatings.

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