Remarkable improvement of Mechanical Properties of layered CNTs/Al composites with Cu decorated on CNTs

2021 ◽  
pp. 163404
Author(s):  
Junfeng Chen ◽  
Laixing Yan ◽  
Siyan Liang ◽  
Xiping Cui ◽  
Chaonong Liu ◽  
...  
2017 ◽  
Vol 135 (15) ◽  
pp. 46158 ◽  
Author(s):  
F. Sánchez-Correa ◽  
C. Vidaurre-Agut ◽  
Á. Serrano-Aroca ◽  
A. J. Campillo-Fernández

1993 ◽  
Vol 327 ◽  
Author(s):  
Hidehiro Endo ◽  
Masanori Ueki

AbstractFully densified WC-A12O3 composites were successfully consolidated by both hot-pressing and pressureless sintering. The optimum hot-pressing condition for the composites was 1700°C for 2h under a pressure of 40MPa. A remarkable improvement in mechanical properties was achieved in the composite system, especially in WC-30 and -70vol%A12O3, compared to the monolithic WC and A12O3 ceramics. The addition of MgO as a sintering aid had a great effect on the properties of the composites. WC-30vol%A12O3 composite with 1.Owt% MgO addition exhibited flexural strength higher than 1000MPa up to 1200°C, fracture toughness; KIC≥7MPa√m, and hardness; HV ≥2450. In pressureless sintering with the addition of MgO as a sintering aid and subsequent HIP treatment, the WC-30vol%A12O3 composite exhibited the flexural strength higher than 900MPa up to 1200°C.


2021 ◽  
Author(s):  
Junfeng Chen ◽  
Laixing Yan ◽  
Siyan Liang ◽  
Xiping Cui ◽  
Chaonong Liu ◽  
...  

2016 ◽  
Vol 128 (27) ◽  
pp. 7988-7992 ◽  
Author(s):  
Ram Kumar ◽  
Devaraj Raut ◽  
Upadrasta Ramamurty ◽  
C. N. R. Rao

2021 ◽  
Author(s):  
Junfeng Chen ◽  
Laixing Yan ◽  
Siyan Liang ◽  
Xiping Cui ◽  
Chaonong Liu ◽  
...  

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1103 ◽  
Author(s):  
Nabil Kadhim ◽  
Yuan Mei ◽  
Ying Wang ◽  
Ying Li ◽  
Fanbin Meng ◽  
...  

Helical carbon nanotubes (HCNTs) were functionalized to fabricate HCNT/epoxy composites. Acid oxidation and a silane coupling agent, glycidoxypropyltrimethoxysilane (KH560), were used to modify the HCNTs. Remarkably, the flexural strength and the flexural strain were enhanced by 72.0% and 325.0%, respectively, compared to pure epoxy after adding a small amount of the KH560 modified HCNTs (K-HCNTs). Simultaneously, the tensile strength and Young’s modulus of K-HCNTs/epoxy composites were 51.3% and 270.9% higher than those of pure epoxy. It is found that the presence of silane molecules improved the dispersion of HCNTs in epoxy and the interfacial interaction. Moreover, it has been found that the mechanically interlocking effect from the helical shape of HCNTs also contributes to the improved mechanical properties of epoxy composites, compared to their straight multi-walled carbon nanotube (MWCNT) counterparts. This work provides a low-cost and efficient approach to strengthen and toughen epoxy composites.


2012 ◽  
Vol 454 ◽  
pp. 59-62 ◽  
Author(s):  
Yu Liang An ◽  
Chen Zhang ◽  
Xia Yuan ◽  
Qing Yi Hou

The poly(phenlene sulfide)(PPS)/carbon nanotubes (CNTs) composite was prepared by plastic pressure moulding of mixture of PPS and CNTs mixed by ball mill. The structure, elcctrical conductivity and mechanical properties of the composite were studied in detail. The effect of content of CNT on mechanic properties and conductivity of composite was carried out, repectivly. The SEM characterization indicates that CNTs were dispersed uniformly in the PPS matrix, which leads to a remarkable improvement in mechanical properties of composite. Compared with the those of neat PPS, both the tensile strength and impact strength of the composite increase with content of CNTs. and the addition of CNT increases the conductivity of the composites dramatically.


2010 ◽  
Vol 638-642 ◽  
pp. 1379-1383 ◽  
Author(s):  
Mitsuhiro Matsuda ◽  
Katsutoshi Hayashi ◽  
Minoru Nishida

The relationship between the microstructure and mechanical properties on the ternary ZrCoNi alloys has been investigated. Zr50Co50-xNix alloys undergo martensitic transformation from the B2 to B33 structure by the substitution of Ni for Co. The tensile ductility at room temperature increases remarkably without the loss of yield strength by substituting Ni. Zr50Co39Ni11 alloy has the extremely high plastic elongation of 21%. There are many {021}B33 deformation twins in the B2 parent phase just near the tensile fractured area. These twins are the strain induced martensitic phase due to the tensile deformation. Consequently, the remarkable improvement of the ductility of ZrCoNi alloys is due to the transformation induced plasticity.


Polymers have been increasingly used in industry due to their light weight, lower cost, reduced secondary operations, design flexibility and ease in manufacturing. However the mechanical properties like micro hardness and wear resistance of plastic restrict their applications. In this paper an effort has been made to improve the mechanical properties of plastic by applying a coating of Ni through electrodeposition method. There has been a remarkable improvement in the wear resistance and hardness after coating. The experimental investigation, analysis of result and conclusion are presented in this paper


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