Damping behavior of polymer composites with high volume fraction of NiMnGa powders

2011 ◽  
Author(s):  
Xiaogang Sun ◽  
Jie Song ◽  
Hong Jiang ◽  
Xiaoning Zhang ◽  
Chaoying Xie
Keyword(s):  
Polymer Composites ◽  
Volume Fraction ◽  
High Volume ◽  
High Volume Fraction ◽  
Damping Behavior

Surface-Induced Polymer Crystallization in High Volume Fraction Aligned Carbon Nanotube-Polymer Composites

2010 ◽  
Vol 211 (9) ◽  
pp. 1003-1011 ◽  
Author(s):  
Shanju Zhang ◽  
Wei Lin ◽  
Xinfei Yu ◽  
Ching-Ping Wong ◽  
Stephen Z. D. Cheng ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composites ◽  
Volume Fraction ◽  
High Volume ◽  
Polymer Crystallization ◽  
High Volume Fraction

Determination of interface integrity in high volume fraction polymer composites at all strain levels

2005 ◽  
Vol 53 (3) ◽  
pp. 647-657 ◽  
Author(s):  
G. Anagnostopoulos ◽  
D. Bollas ◽  
J. Parthenios ◽  
G.C. Psarras ◽  
C. Galiotis
Keyword(s):  
Polymer Composites ◽  
Volume Fraction ◽  
High Volume ◽  
High Volume Fraction

Effect of Volume Fraction of NiMnGa Powders on Magnetic-Field-Induced Strain in NiMnGa/Polymer Composites

2010 ◽  
Vol 152-153 ◽  
pp. 387-390 ◽  
Author(s):  
Xiao Gang Sun ◽  
Chao Ying Xie
Keyword(s):  
Magnetic Field ◽  
Polymer Composites ◽  
Volume Fraction ◽  
High Volume ◽  
High Volume Fraction ◽  
Perpendicular Orientation

Polymer composites inserted with high volume fraction of NiMnGa powders were fabricated and their magnetic-field-induced strain (MFIS) was investigated. It is found that MFIS of NiMnGa/polymer composites increases with the increase of volume fraction of NiMnGa powders in composites. Large MFIS of 950 ppm has been obtained along the orientation magnetic field while only 220 ppm was on the perpendicular orientation magnetic field.

scholarly journals Face Grinding Surface Quality of High Volume Fraction SiCp/Al Composite Materials

2021 ◽  
Vol 34 (1) ◽  
Author(s):  
Xu Zhao ◽  
Yadong Gong ◽  
Guiqiang Liang ◽  
Ming Cai ◽  
Bing Han
Keyword(s):  
Friction Coefficient ◽  
Surface Morphology ◽  
Surface Quality ◽  
Volume Fraction ◽  
High Volume ◽  
Spindle Speed ◽  
High Volume Fraction ◽  
Machining Parameters ◽  
Al Composite

AbstractThe existing research on SiCp/Al composite machining mainly focuses on the machining parameters or surface morphology. However, the surface quality of SiCp/Al composites with a high volume fraction has not been extensively studied. In this study, 32 SiCp/Al specimens with a high volume fraction were prepared and their machining parameters measured. The surface quality of the specimens was then tested and the effect of the grinding parameters on the surface quality was analyzed. The grinding quality of the composite specimens was comprehensively analyzed taking the grinding force, friction coefficient, and roughness parameters as the evaluation standards. The best grinding parameters were obtained by analyzing the surface morphology. The results show that, a higher spindle speed should be chosen to obtain a better surface quality. The final surface quality is related to the friction coefficient, surface roughness, and fragmentation degree as well as the quantity and distribution of the defects. Lower feeding amount, lower grinding depth and appropriately higher spindle speed should be chosen to obtain better surface quality. Lower feeding amount, higher grinding depth and spindle speed should be chosen to balance grind efficiently and surface quality. This study proposes a systematic evaluation method, which can be used to guide the machining of SiCp/Al composites with a high volume fraction.

scholarly journals Study on the High-Speed Milling Performance of High-Volume Fraction SiCp/Al Composites

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4143
Author(s):  
Youzheng Cui ◽  
Shenrou Gao ◽  
Fengjuan Wang ◽  
Qingming Hu ◽  
Cheng Xu ◽  
...  
Keyword(s):  
High Speed ◽  
Large Scale ◽  
Volume Fraction ◽  
Simulation Analysis ◽  
Cutting Temperature ◽  
High Volume ◽  
Cutting Parameters ◽  
High Volume Fraction ◽  
High Wear Resistance ◽  
Element Analysis

Compared with other materials, high-volume fraction aluminum-based silicon carbide composites (hereinafter referred to as SiCp/Al) have many advantages, including high strength, small change in the expansion coefficient due to temperature, high wear resistance, high corrosion resistance, high fatigue resistance, low density, good dimensional stability, and thermal conductivity. SiCp/Al composites have been widely used in aerospace, ordnance, transportation service, precision instruments, and in many other fields. In this study, the ABAQUS/explicit large-scale finite element analysis platform was used to simulate the milling process of SiCp/Al composites. By changing the parameters of the tool angle, milling depth, and milling speed, the influence of these parameters on the cutting force, cutting temperature, cutting stress, and cutting chips was studied. Optimization of the parameters was based on the above change rules to obtain the best processing combination of parameters. Then, the causes of surface machining defects, such as deep pits, shallow pits, and bulges, were simulated and discussed. Finally, the best cutting parameters obtained through simulation analysis was the tool rake angle γ0 = 5°, tool clearance angle α0 = 5°, corner radius r = 0.4 mm, milling depth ap = 50 mm, and milling speed vc= 300 m/min. The optimal combination of milling parameters provides a theoretical basis for subsequent cutting.

High volume fraction and uniform dispersion of carbon nanotubes in aluminium powders

2010 ◽  
Vol 5 (6) ◽  
pp. 379 ◽  
Author(s):  
Zhiqiang Li ◽  
Lin Jiang ◽  
Genlian Fan ◽  
Yong Xu ◽  
Di Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Volume Fraction ◽  
High Volume ◽  
High Volume Fraction ◽  
Uniform Dispersion
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