Facile in-situ fabrication of novel organic nanoparticle hydrogels with excellent mechanical properties

2009 ◽  
Vol 19 (39) ◽  
pp. 7340 ◽  
Author(s):  
Yongtao Wu ◽  
Zhe Zhou ◽  
Qingqing Fan ◽  
Long Chen ◽  
Meifang Zhu
Keyword(s):  
Mechanical Properties ◽  
In Situ Fabrication

Optimizing the Parameters of Reactive Sintering for In Situ Fabrication of Al-Al2O3 Composites

2014 ◽  
Vol 216 ◽  
pp. 255-260
Author(s):  
Mircea Nicoara ◽  
Aurel Raduta ◽  
Cosmin Locovei ◽  
Carmen Opriș ◽  
Danut Sosdean ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Microstructural Analysis ◽  
Intermetallic Phases ◽  
Experimental Program ◽  
Reactive Sintering ◽  
In Situ Fabrication ◽  
Distribution Of Elements ◽  
Scanning Electron

Fabrication of aluminum-based composites reinforced by ceramic particles or intermetallic phases has focused considerable attention in recent decades because significant improvement in mechanical properties and thermal stability. This paper has considered in-situ fabrication by mean of reactive sintering of blended and compacted powders containing an aluminum-copper hardenable alloy and titanium dioxide. An experimental program has been dedicated to optimize the sintering parameters in terms of both treatments temperature, between 650 and 800°C, and duration, in the range of 3 to 6 hours. Microstructural analysis based on Scanning Electron Microscopy (SEM) has been used to determine of distribution of elements involved in sintering reactions, such as aluminum, titanium and oxygen.

In situ fabrication and mechanical properties of Al–AlN composite by hot extrusion of partially nitrided AA6061 powder

2011 ◽  
Vol 26 (14) ◽  
pp. 1719-1725 ◽  
Author(s):  
Peng Yu ◽  
M. Balog ◽  
M. Yan ◽  
G.B. Schaffer ◽  
M. Qian
Keyword(s):  
Mechanical Properties ◽  
Hot Extrusion ◽  
In Situ Fabrication ◽  
Image Position

Abstract

In situ fabrication of a composite hydrogel with tunable mechanical properties for cartilage tissue engineering

2019 ◽  
Vol 7 (15) ◽  
pp. 2463-2473 ◽  
Author(s):  
Fenbo Ma ◽  
Yongmei Ge ◽  
Nian Liu ◽  
Xiangchao Pang ◽  
Xingyu Shen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Cartilage Tissue Engineering ◽  
Composite Hydrogel ◽  
Cartilage Tissue ◽  
In Situ Fabrication ◽  
Tunable Mechanical Properties

A composite hydrogel with tunable mechanical properties has been fabricated and characterized in this study.

Dynamics of Nanoparticle Chain Aggregates of Carbon Under Tension

2003 ◽  
Vol 778 ◽  
Author(s):  
Rajdip Bandyopadhyaya ◽  
Weizhi Rong ◽  
Yong J. Suh ◽  
Sheldon K. Friedlander
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Polymer Film ◽  
Elastic Behavior ◽  
Small Strains ◽  
Transmission Electron ◽  
Chain Aggregates ◽  
Nanoparticle Chains ◽  
Reinforcing Filler

AbstractCarbon black in the form of nanoparticle chains is used as a reinforcing filler in elastomers. However, the dynamics of the filler particles under tension and their role in the improvement of the mechanical properties of rubber are not well understood. We have studied experimentally the dynamics of isolated nanoparticle chain aggregates (NCAs) of carbon made by laser ablation, and also that of carbon black embedded in a polymer film. In situ studies of stretching and contraction of such chains in the transmission electron microscope (TEM) were conducted under different maximum values of strain. Stretching causes initially folded NCA to reorganize into a straight, taut configuration. Further stretching leads to either plastic deformation and breakage (at 37.4% strain) or to a partial elastic behavior of the chain at small strains (e.g. 2.3% strain). For all cases the chains were very flexible under tension. Similar reorientation and stretching was observed for carbon black chains embedded in a polymer film. Such flexible and elastic nature of NCAs point towards a possible mechanism of reinforcement of rubber by carbon black fillers.

Effect of TiB2 particle addition on the mechanical properties of Al/TiB2 in situ formed metal matrix composites

2018 ◽  
Vol 60 (12) ◽  
pp. 1221-1224 ◽  
Author(s):  
Balachandran Gobalakrishnan ◽  
P. Ramadoss Lakshminarayanan ◽  
Raju Varahamoorthi
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Tib2 Particle ◽  
Matrix Composites ◽  
Particle Addition
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