scholarly journals Effect of curing condition on bonding quality of scarf-repaired composite laminates

2020 ◽  
Vol 33 (8) ◽  
pp. 2257-2267 ◽  
Author(s):  
Jie ZHANG ◽  
Xiaoquan CHENG ◽  
Jikui ZHANG ◽  
Xin GUO ◽  
Wenjun HUANG
Keyword(s):  
Composite Laminates ◽  
Bonding Quality ◽  
Curing Condition

Influence of film thickness of Ti coating on bonding quality of glass with PET

2012 ◽  
Vol 28 (9) ◽  
pp. 705-709 ◽  
Author(s):  
H X Liu ◽  
K Wang ◽  
C Zhang ◽  
P Li ◽  
Y Y Gao ◽  
...  
Keyword(s):  
Film Thickness ◽  
Bonding Quality

Effect of nanofiller on fibre laser drilling quality of carbon fibre reinforced polymer composite laminates

2018 ◽  
Vol 233 (4) ◽  
pp. 857-870
Author(s):  
Dhiraj Kumar ◽  
Kalyan Kumar Singh
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Fibre ◽  
Polymer Matrix ◽  
Composite Laminates ◽  
Reinforced Polymer ◽  
Carbon Fibre Reinforced Polymer ◽  
Multi Walled Carbon Nanotubes ◽  
Fibre Reinforced Polymer ◽  
Walled Carbon Nanotubes

Laser machining of carbon fibre reinforced polymer composites is a challenging task due to a significant difference between physical and thermal properties of the constituent materials, i.e. polymer matrix and carbon fibres. This results in extended heat-affected zone (HAZ), taper kerf and poor surface finishing. This paper focuses on an investigation, attempting to minimise the divergence in the decomposition temperature of carbon fibres and epoxy resin by adding multi-walled carbon nanotubes in polymer matrix as a secondary reinforcement. High thermal conductivity of multi-walled carbon nanotubes increases the thermal diffusivity of polymer matrix, which in turn reduces the matrix recession. In addition, laser power and scan speed was also considered as an input parameter and their influence on output responses such as HAZ, taper angle and surface roughness has been studied. To analyse the effect of multi-walled carbon nanotubes on the resultant thermal damage, an innovative technique, i.e. scanning acoustic microscopy was used. This technique provides a ply-by-ply damage analysis. C-scans of the top and bottom surface of the machined holes in the composite were also carried out. Further, micrographs of the holes were taken to analyse the quality of the holes using field-emission scanning electron microscope. The obtained results indicated that HAZ, taper angle and surface roughness of holes decreased by ∼30%, ∼47% and ∼43%, respectively, with 1.5 wt% multi-walled carbon nanotubes doped carbon fibre reinforced polymer laminates, when compared with the results obtained from experiments with neat carbon fibre reinforced polymer composite laminates.

The Investigation of the Effect Caused by Deposition Velocity on Bonding Degree within the Structure of FDM

2018 ◽  
Vol 764 ◽  
pp. 142-155 ◽  
Author(s):  
Jie Li ◽  
Hong Bin Li ◽  
Jing Chuan Dong ◽  
Tai Yong Wang ◽  
Hai Tao Zhang
Keyword(s):  
Finite Element ◽  
Deposition Velocity ◽  
Quantitative Relationship ◽  
Optimal Temperature ◽  
Bonding Quality ◽  
Building Process ◽  
First Time ◽  
Area Deposition ◽  
Printing Method

In this paper, the effect of deposition velocity on bonding degree is studied in the aspects of experiment and theory. The experimental results show that the bonding quality of the adjacent filaments is weakened with increasing of deposition velocity. In addition, on the premise of guaranteeing every point in the building process to remain at the optimal temperature, the quantitative relationships between interval and filled area, deposition velocity are investigated by using the technique of deactivate and reactivate element of finite element. On the base of the quantitative relationships, the variable deposition velocity printing method is proposed for the first time. Namely, to reap the best bonding quality of filaments the time of completing one layer can be determined according to the filled area, and then, the optimal deposition velocity can be obtained according to the quantitative relationship between the interval and the deposition velocity. Printing the model at this speed can obtain the part with the best bonding quality between adjacent layers.

Investigation of different parameters on roll bonding quality of aluminium and steel sheets

2008 ◽  
Vol 1 (S1) ◽  
pp. 1279-1282 ◽  
Author(s):  
M. Buchner ◽  
B. Buchner ◽  
B. Buchmayr ◽  
H. Kilian ◽  
F. Riemelmoser
Keyword(s):  
Bonding Quality ◽  
Roll Bonding ◽  
Steel Sheets

scholarly journals Construction of a silicate-based epitaxial transition film on a zirconia ceramic surface to improve the bonding quality of zirconia restorations

RSC Advances ◽  
2020 ◽  
Vol 10 (54) ◽  
pp. 32476-32484
Author(s):  
Xiuju Liu ◽  
Han Wang ◽  
Shiyang Yu ◽  
Qi Zhao ◽  
Zuosen Shi ◽  
...  
Keyword(s):  
Silicate Solution ◽  
Zirconia Ceramic ◽  
Ceramic Surface ◽  
Bonding Quality ◽  
Resin Bonding

The effect of a silicate-based epitaxial transition film on zirconia produced by a silicate solution during zirconia–resin bonding was investigated.

scholarly journals A Multifunctional Mineral Binder for Plywood Production: The Effect of Manufacturing Parameters on Bonding Quality

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2360 ◽  
Author(s):  
Ali Shalbafan ◽  
Amin Nadali ◽  
Heiko Thoemen
Keyword(s):  
Physical And Mechanical Properties ◽  
Middle Layer ◽  
Wood Products ◽  
Surface Layers ◽  
Bonding Quality ◽  
High Roughness ◽  
Mineral Binder ◽  
Manufacturing Parameters ◽  
Layer Position

Geopolymers show great potential for use as binders in developing and manufacturing multifunctional wood products. The objective of this study was to improve the bonding quality of a geopolymer binder, with wood veneers, using different manufacturing parameters. To this end, we produced five layered plywood panels treated with various lay-up times (1, 5, 10, 15 min), panel compressibility values during hot pressing (5%, 10%, 15%, and 30% compression), veneer roughness values (low, medium, and high roughness), press temperatures (120, 140, and 160 °C), and veneer layouts via changing the middle layer position of plywood relative to the surface layers. The results show that the shear strength and thickness swelling were negatively influenced by increasing the lay-up time of resinated veneers and panel compressibility. Increasing the veneer roughness significantly increased the panels’ properties. Furthermore, the panels produced with a pressing temperature of 140 °C showed the best performances. The veneer layouts also significantly changed the physical and mechanical properties of the plywood panels. Generally speaking, the results obtained in this study show that improving the bonding quality of geopolymer binders with wood can be done through the manipulation of plywood manufacturing parameters.

Bonding quality of cross-laminated timber: Evaluation of test methods on Eucalyptus grandis panels

2019 ◽  
Vol 211 ◽  
pp. 217-227 ◽  
Author(s):  
Michael Dugmore ◽  
Michela Nocetti ◽  
Michele Brunetti ◽  
Zahra Naghizadeh ◽  
C. Brand Wessels
Keyword(s):  
Eucalyptus Grandis ◽  
Test Methods ◽  
Bonding Quality ◽  
Cross Laminated Timber

Effect of deuterium on bonding quality of W/Ti/Steel HIP joints in first wall application

2019 ◽  
Vol 138 ◽  
pp. 313-320 ◽  
Author(s):  
Ji-Chao Wang ◽  
Jianjun Huang ◽  
Huibin Sun ◽  
Xiang Gao ◽  
Wanjing Wang ◽  
...  
Keyword(s):  
First Wall ◽  
Hip Joints ◽  
Bonding Quality

Effect of ultrasonic parameters on bonding quality of rolled T2 copper foil and Au wire

2016 ◽  
Vol 170 (1) ◽  
pp. 100-105
Author(s):  
Peng Zhang ◽  
Qiang Zhu ◽  
Gang Chen ◽  
Dong Luan ◽  
Chuanjie Wang
Keyword(s):  
Copper Foil ◽  
Bonding Quality ◽  
Ultrasonic Parameters
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