scholarly journals FABRICATION OF MAGNETITE/PLA COMPOSITE NANOFIBER SHEET AND EVALUATION OF ITS MECHANICAL PROPERTIES

2017 ◽  
Author(s):  
KAZUTO TANAKA ◽  
TAKUYA OKADA ◽  
YUTO MOTOHASHI ◽  
TSUTAO KATAYAMA
Keyword(s):  
Mechanical Properties ◽  
Composite Nanofiber

Thermal and mechanical properties of composite nanofiber webs and films containing cellulose nanowhiskers

2012 ◽  
Vol 83 (13) ◽  
pp. 1335-1344 ◽  
Author(s):  
Nuray Ucar ◽  
Onur Ayaz ◽  
Elif Bahar ◽  
Youjiang Wang ◽  
Mustafa Oksuz ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cellulose Nanowhiskers ◽  
Thermal And Mechanical Properties ◽  
Composite Nanofiber

Mechanical Properties and the Characterization of Polyacrylonitrile/Carbon Nanotube Composite Nanofiber

2018 ◽  
Vol 43 (9) ◽  
pp. 4697-4702 ◽  
Author(s):  
Shrouk A. Karim ◽  
Alaa Mohamed ◽  
M. M. Abdel-Mottaleb ◽  
T. A. Osman ◽  
A. Khattab
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Composite Nanofiber ◽  
Carbon Nanotube Composite

Morphology, Structure and Properties of Electrospun Multi-Walled Carbon Nanotube/Polysulfonamide Composite Nanofibers

2015 ◽  
Vol 10 (1) ◽  
pp. 155892501501000 ◽  
Author(s):  
Bin-Jie Xin ◽  
Wenjie Chen
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Composite Nanofibers ◽  
Electrospun Fibers ◽  
Structure And Properties ◽  
Excellent Thermal Stability ◽  
Multi Walled Carbon Nanotube ◽  
Composite Nanofiber ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

In this paper, the morphology, structure and properties of electrospun Polysulfonamide (PSA)/multi-walled carbon nanotubes (MWCNTs) fibers are investigated systematically. The experimental results indicate that the diameter of electrospun PSA fiber increased by the blending of MWCNTs while its crystallinity decreased. Both the conductivity and mechanical properties of PSA/MWCNT fibers were improved by the blending of MWCNTs at a concentration below 5% MWCNT. The thermal behavior of the electrospun fibers was influenced by the MWCNT concentrations through the Thermogravimetric Analysis (TGA). The new developed PSA/MWCNTs composite nanofiber has excellent thermal stability and mechanical properties compared with the usual PSA fibers.

Electrospun composite nanofiber membrane of poly( l -lactide) and surface grafted chitin whiskers: Fabrication, mechanical properties and cytocompatibility

2016 ◽  
Vol 147 ◽  
pp. 216-225 ◽  
Author(s):  
Hua Liu ◽  
Wenjun Liu ◽  
Binghong Luo ◽  
Wei Wen ◽  
Mingxian Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Nanofiber Membrane ◽  
Composite Nanofiber ◽  
Chitin Whiskers

Enhanced Mechanical Properties of Poly(Vinyl Alcohol) Nanofibers With Molecular Level Dispersed Graphene

2012 ◽  
Author(s):  
X. Y. Qi ◽  
C. B. Ma ◽  
S. M. L. Nai ◽  
C. K. Cheng ◽  
H. Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Vinyl Alcohol ◽  
Molecular Level ◽  
Fold Increase ◽  
Poly Vinyl Alcohol ◽  
Composite Nanofiber ◽  
Potential Applications ◽  
Nanofiber Membranes ◽  
Morphology And Mechanical Properties ◽  
Properties Of Composites

Graphene oxide (GO) was incorporated to poly(vinyl alcohol) (PVA) to form GO/PVA composite nanofiber membranes with reinforced mechanical properties via electrospinning technology. The effect of exfoliated degree of GO and dispersion sate in the PVA polymer matrix on the morphology and mechanical properties of composites is studied, revealing that the functional side groups of GO can improve the dispersion and interfacial bonding between the GO and PVA matrix. In addition, it also demonstrates the GO/PVA nanofiber membranes with the significant enhanced mechanical properties (2.28-fold increase in tensile stress) are obtained at a low GO loading (0.3 wt%). Our strategy provides new opportunities for the PVA composite to be involved in other potential applications.

Phase Transformations in Ti-7w/oMo-3w/oMe Alloy

1974 ◽  
Vol 32 ◽  
pp. 514-515
Author(s):  
S. Fujishiro
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Transmission Electron Microscopy ◽  
Tensile Strength ◽  
Mechanical Processing ◽  
Ray Method ◽  
X Ray ◽  
Transmission Electron ◽  
Water Quench ◽  
Alpha Beta

The mechanical properties of three titanium alloys (Ti-7Mo-3Al, Ti-7Mo- 3Cu and Ti-7Mo-3Ta) were evaluated as function of: 1) Solutionizing in the beta field and aging, 2) Thermal Mechanical Processing in the beta field and aging, 3) Solutionizing in the alpha + beta field and aging. The samples were isothermally aged in the temperature range 300° to 700*C for 4 to 24 hours, followed by a water quench. Transmission electron microscopy and X-ray method were used to identify the phase formed. All three alloys solutionized at 1050°C (beta field) transformed to martensitic alpha (alpha prime) upon being water quenched. Despite this heavily strained alpha prime, which is characterized by microtwins the tensile strength of the as-quenched alloys is relatively low and the elongation is as high as 30%.

Effects of cooling rate on the mechanical properties of dual phase treated vanadium steels

1983 ◽  
Vol 41 ◽  
pp. 220-221
Author(s):  
L.J. Chen ◽  
H.C. Cheng ◽  
J.R. Gong ◽  
J.G. Yang
Keyword(s):  
Mechanical Properties ◽  
Cooling Rate ◽  
Automobile Industry ◽  
High Strength ◽  
Weight Percent ◽  
Low Alloy Steels ◽  
Dual Phase ◽  
Resource Requirement ◽  
Alloy Steels ◽  
Potential Weight

For fuel savings as well as energy and resource requirement, high strength low alloy steels (HSLA) are of particular interest to automobile industry because of the potential weight reduction which can be achieved by using thinner section of these steels to carry the same load and thus to improve the fuel mileage. Dual phase treatment has been utilized to obtain superior strength and ductility combinations compared to the HSLA of identical composition. Recently, cooling rate following heat treatment was found to be important to the tensile properties of the dual phase steels. In this paper, we report the results of the investigation of cooling rate on the microstructures and mechanical properties of several vanadium HSLA steels.The steels with composition (in weight percent) listed below were supplied by China Steel Corporation: 1. low V steel (0.11C, 0.65Si, 1.63Mn, 0.015P, 0.008S, 0.084Aℓ, 0.004V), 2. 0.059V steel (0.13C, 0.62S1, 1.59Mn, 0.012P, 0.008S, 0.065Aℓ, 0.059V), 3. 0.10V steel (0.11C, 0.58Si, 1.58Mn, 0.017P, 0.008S, 0.068Aℓ, 0.10V).

Lattice Imaging of Grain Boundaries in Ceramics

1977 ◽  
Vol 35 ◽  
pp. 114-115
Author(s):  
D. R. Clarke ◽  
G. Thomas
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Silicon Nitride ◽  
Grain Boundaries ◽  
High Temperature Strength ◽  
Current Interest ◽  
Lattice Imaging ◽  
Special Significance ◽  
Structural Applications ◽  
Refractory Ceramics

Grain boundaries have long held a special significance to ceramicists. In part, this has been because it has been impossible until now to actually observe the boundaries themselves. Just as important, however, is the fact that the grain boundaries and their environs have a determing influence on both the mechanisms by which powder compaction occurs during fabrication, and on the overall mechanical properties of the material. One area where the grain boundary plays a particularly important role is in the high temperature strength of hot-pressed ceramics. This is a subject of current interest as extensive efforts are being made to develop ceramics, such as silicon nitride alloys, for high temperature structural applications. In this presentation we describe how the techniques of lattice fringe imaging have made it possible to study the grain boundaries in a number of refractory ceramics, and illustrate some of the findings.

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