Influences of Coating Type on Microstructure and Strength of Aluminum–Steel Bimetal Composite Interface

2021 ◽  
Author(s):  
A. Manzari Tavakoli ◽  
B. Nami ◽  
M. Malekan ◽  
I. Khoubrou
Keyword(s):  
Composite Interface ◽  
Coating Type ◽  
Bimetal Composite

Microstructure and Formation Mechanism of Two-Liquid Bimetal Composite Interface

2013 ◽  
Vol 690-693 ◽  
pp. 390-393 ◽  
Author(s):  
Yong Chang Zhu ◽  
Shou Fan Rong ◽  
Han Song Yang ◽  
Zun Jie Wei ◽  
Miao Miao Han
Keyword(s):  
Carbon Steel ◽  
Induction Furnace ◽  
High Carbon Steel ◽  
Low Carbon Steel ◽  
Bonding Layer ◽  
Low Carbon ◽  
Obvious Effect ◽  
Metallurgical Bonding ◽  
Composite Interface ◽  
Bimetal Composite

Two-liquid bimetal composite casting technology by double induction furnace fusion was utilized for preparing bimetal product in tradition. Single induction furnace fusion has been investigated between the high carbon steel and the low carbon steel, and varying casting thickness has an obvious effect on the bimetal bonding layer. The results have shown that the bimetal bonding layer can not been generated under over thinness or thickness. In the condition of the thicker low carbon steel, two kinds of metal liquid were easy to rush mixture without the distinct interface, whereas the thinner low carbon steel can also effectively form metallurgical bonding. While the low carbon steel owned the proper thickness, metallurgical bonding can been observed distinctly, confirming the feasibility of the single induction fusion for preparing the bimetal.

Contrasting underlying mechanisms of different barrier coating types

TAPPI Journal ◽  
2018 ◽  
Vol 17 (01) ◽  
pp. 31-37
Author(s):  
Bryan McCulloch ◽  
John Roper ◽  
Kaitlin Rosen
Keyword(s):  
Food Packaging ◽  
Underlying Mechanism ◽  
Consumer Products ◽  
Mechanical Degradation ◽  
Design Rules ◽  
Barrier Coatings ◽  
Barrier Materials ◽  
Barrier Coating ◽  
Coating Type ◽  
Underlying Mechanisms

Barrier coatings are used in applications including food packaging, dry goods, and consumer products to prevent transport of different compounds either through or into paper and paperboard substrates. These coatings are useful in packaging to contain active ingredients, such as fragrances, or to protect contents from detrimental substances, such as oxygen, water, grease, or other chemicals of concern. They also are used to prevent visual changes or mechanical degradation that might occur if the paper becomes saturated. The performance and underlying mechanism depends on the barrier coating type and, in particular, on whether the barrier coating is designed to prevent diffusive or capillary transport. Estimates on the basis of fundamental transport phenomena and data from a broad screening of different barrier materials can be used to understand the limits of various approaches to construct barrier coatings. These estimates also can be used to create basic design rules for general classes of barrier coatings.

scholarly journals Experimental Testing and Analytical Modeling of Asymmetric End-Notched Flexure Tests on Glass-Fiber Metal Laminates

Metals ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 56 ◽  
Author(s):  
Konrad Dadej ◽  
Jarosław Bieniaś ◽  
Paolo Sebastiano Valvo
Keyword(s):  
Glass Fiber ◽  
Experimental Testing ◽  
Metal Composite ◽  
Interface Model ◽  
Experimental Campaign ◽  
Composite Interface ◽  
Theoretical Predictions ◽  
Elastic Interface ◽  
Fiber Metal ◽  
Rigid Interface

An experimental campaign on glass-fiber/aluminum laminated specimens was conducted to assess the interlaminar fracture toughness of the metal/composite interface. Asymmetric end-notched flexure tests were conducted on specimens with different fiber orientation angles. The tests were also modeled by using two different analytical solutions: a rigid interface model and an elastic interface model. Experimental results and theoretical predictions for the specimen compliance and energy release rate are compared and discussed.

scholarly journals Early-Age Tensile Bond Characteristics of Epoxy Coatings for Underwater Applications

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 757 ◽  
Author(s):  
Kim ◽  
Hong ◽  
Han ◽  
Kim
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Epoxy Resin ◽  
Coating Thickness ◽  
Experimental Results ◽  
Early Age ◽  
Curing Time ◽  
Bond Performance ◽  
Coating Type ◽  
Bond Characteristics

In this study, coating equipment for the effective underwater repair of submerged structures was developed. The tensile bond characteristics of selected epoxy resin coatings were investigated by coating the surface of a specimen using each of the four types of equipment. Using the experimental results, the tensile bond strength and the coating thickness were analyzed according to the type of equipment, coating, and curing time. The results show that the type of coating equipment used had the greatest effect on the measured bond strength and coating thickness of the selected coatings. However, the effect of coating type and curing time on the bond strength and the thickness was observed to be insignificant. Compared with the developed equipment, the surface treatment of the coating was observed to be more effective when using the pre-existing equipment, and thus the bond performance of the coating was improved compared to using the pre-existing equipment. Based on the experimental results, improvements and needs involving the equipment for further research were discussed.

scholarly journals Physical, Optical, and Visual Performance of Coated Cross-Laminated Timber during Natural and Artificial Weathering

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 252
Author(s):  
Gabrielly dos Santos Bobadilha ◽  
C. Elizabeth Stokes ◽  
Katie M. Ohno ◽  
Grant Kirker ◽  
Dercilio Junior Verly Lopes ◽  
...  
Keyword(s):  
Color Change ◽  
The United States ◽  
Market Demand ◽  
Field Exposure ◽  
Visual Appearance ◽  
Artificial Weathering ◽  
Cross Laminated Timber ◽  
Wood Coatings ◽  
Coating Type ◽  
Exterior Wood

Cross-laminated timber (CLT) market demand is on the rise in the United States. Adequate protective measures have not been extensively studied. The objective of this study was to investigate the weathering performance of exterior wood coatings. We evaluated coated CLT sample surfaces based on visual appearance, color change (CIE*L*a*b), gloss changes, and water intrusion. From the five exterior wood coatings evaluated, only two showed adequate performance after twelve months field exposure. Based on visual ratings following the ASTM procedures, coating failure occurs more quickly in Mississippi than in Wisconsin, due to its greater decay zone. Both location and coating type impacted the aging of the samples. Artificial weathering results were consistent with natural weathering indicating the two adequate coatings were the most resistant to failure, color, and gloss change. For future studies, new coatings designed for the protection of end-grain in CLT panels should be a target of research and development.

scholarly journals The Effect of Edible Coatings on Selected Physicochemical Properties of Cassava Chips

2021 ◽  
Vol 11 (7) ◽  
pp. 3265
Author(s):  
Diofanor Acevedo-Correa ◽  
José Jaimes-Morales ◽  
Piedad M. Montero-Castillo
Keyword(s):  
Physicochemical Properties ◽  
Whey Protein ◽  
Oil Content ◽  
Moisture Absorption ◽  
Moisture Loss ◽  
Edible Coatings ◽  
Protein Films ◽  
Anova Analysis ◽  
Coating Type ◽  
Sensory Parameters

The objective of this research was to study the effect of edible coatings on the physicochemical properties of cassava chips. The oil and moisture absorption in fried cassava chips that were not coated and in chips that were coated with pectin and whey protein films were determined using a completely randomized experiment design with a 33 factorial arrangement. The multifactorial ANOVA analysis of variance showed that all factors had significant statistical differences for moisture loss and oil absorption (p < 0.05). The coating type, the control, and the whey protein-coated chips presented a 321% greater oil content on average at 180 °C and 180 s than the pectin-coated chips. The density, heat capacity, and thermal diffusivity had statistical differences at all temperatures (p < 0.05). The sensory analysis showed that the coating type affected all sensory parameters, except crispness, as indicated by significant statistical differences (p < 0.05). The temperature only influenced the color of the control chips, with statistical differences (p < 0.05) at all temperatures.

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