Characterization of Fatigue Strength and Damage Behavior in Glass-Particle-Reinforced Nylon 66 Composites

In recent years, portable electronic devices have flourished, and the safety of lithium batteries has received increasing attention. In this study, nanofibers were prepared by electrospinning using different ratios of nylon 66/polyacrylonitrile (PAN), and their properties were studied and compared with commercial PP separators. The experimental results show that the addition of PAN in nylon 66/PAN nanofibrous film used as separator of lithium-ion battery can enhance the porosity up to 85%. There is also no significant shrinkage in the shrinkage test, and the thermal dimensional stability is good. When the Li/LiFePO4 lithium battery is prepared by nylon 66/PAN nanofibrous film used as separator, the capacitor can be maintained at 140 mAhg−1 after 20 cycles at 0.1 C, and the coulombic efficiency is still maintained at 99%, which has excellent electrochemical performance.

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Fabrication and characterization of fluorescent rare-earth-doped glass-particle-based tips for near-field optical imaging applications

Applied Optics ◽

10.1364/ao.43.003829 ◽

2004 ◽

Vol 43 (19) ◽

pp. 3829 ◽

Cited By ~ 23

Author(s):

Lionel Aigouy ◽

Yannick De Wilde ◽

Michel Mortier ◽

Jacques Giérak ◽

Eric Bourhis

Keyword(s):

Rare Earth ◽

Optical Imaging ◽

Near Field ◽

Glass Particle ◽

Fabrication And Characterization ◽

Doped Glass ◽

Rare Earth Doped ◽

Rare Earth Doped Glass

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Characterization of nanocrystalline surface layer induced by shot peening and effect on their fatigue strength.

MRS Proceedings ◽

10.1557/proc-843-t3.7 ◽

2004 ◽

Vol 843 ◽

Author(s):

Hideo Mano ◽

Kondo Satoru ◽

Akihito Matsumuro ◽

Toru Imura

Keyword(s):

Residual Stress ◽

Surface Layer ◽

Fatigue Strength ◽

Vickers Hardness ◽

Shot Peening ◽

White Layer ◽

The Other ◽

Fatigue Properties ◽

Nanocrystalline Layer

ABSTRACTThe shot peening process is known to produce a hard layer, known as the white layer” on the surface of coil springs. However, little is known about the fatigue properties of this white-layer.In this study, coil springs with a white-layer were manufactured. The surface of these springs was then examined using micro Vickers hardness, FE-SEM etc. to test fatigue strength of the springs.From the results obtained, a microstructure of the white-layer with grain size of 50–100 nm was observed, with a Vickers hardness rating of 8–10 GPa.Tow category springs were manufactured utilizing a double-peening process. These springs had the same residual stress destruction and surface roughness. Only one difference was observed: one spring had a nanocrystalline layer on the surface, while the other did not. The results of the fatigue test realized an increase in the fatigue life of the nanocrystalline surface layer by 9%.

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Meso-Scale Progressive Damage Behavior Characterization of Triaxial Braided Composites under Quasi-Static Tensile Load

Applied Composite Materials ◽

10.1007/s10443-017-9623-7 ◽

2017 ◽

Vol 25 (2) ◽

pp. 335-352 ◽

Cited By ~ 11

Author(s):

Yiru Ren ◽

Songjun Zhang ◽

Hongyong Jiang ◽

Jinwu Xiang

Keyword(s):

Tensile Load ◽

Progressive Damage ◽

Braided Composites ◽

Damage Behavior ◽

Static Tensile ◽

Meso Scale

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Preparation and characterization of nylon 66/montmorillonite nanocomposites with co-treated montmorillonites

European Polymer Journal ◽

10.1016/s0014-3057(03)00075-2 ◽

2003 ◽

Vol 39 (8) ◽

pp. 1641-1646 ◽

Cited By ~ 47

Author(s):

Bing Han ◽

Gending Ji ◽

Shishan Wu ◽

Jian Shen

Keyword(s):

Nylon 66 ◽

Montmorillonite Nanocomposites

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Microstructural Characterization Of Laser Heat Treated AISI 4140 Steel With Improved Fatigue Behavior

Archives of Metallurgy and Materials ◽

10.1515/amm-2015-0125 ◽

2015 ◽

Vol 60 (2) ◽

pp. 1331-1334 ◽

Cited By ~ 5

Author(s):

M.C. Oh ◽

H. Yeom ◽

Y. Jeon ◽

B. Ahn

Keyword(s):

Fatigue Strength ◽

Alloy Steel ◽

Microstructural Evolution ◽

Fatigue Behavior ◽

Microstructural Characterization ◽

Optical Microscope ◽

Heat Treated ◽

Aisi 4140 ◽

Ultrasonic Fatigue

Abstract The influence of surface heat treatment using laser radiation on the fatigue strength and corresponding microstructural evolution of AISI 4140 alloy steel was investigated in this research. The AISI 4140 alloy steel was radiated by a diode laser to give surface temperatures in the range between 600 and 800°C, and subsequently underwent vibration peening. The fatigue behavior of surface-treated specimens was examined using a giga-cycle ultrasonic fatigue test, and it was compared with that of non-treated and only-peened specimens. Fatigue fractured surfaces and microstructural evolution with respect to the laser treatment temperatures were investigated using an optical microscope. Hardness distribution was measured using Vickers micro-hardness. Higher laser temperature resulted in higher fatigue strength, attributed to the phase transformation.

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