Mechanical Characterization of Close Cell Aluminum Foams Reinforced by High Voltages Electro-deposition

2019 ◽  
Vol 34 (3) ◽  
pp. 541-548
Author(s):  
Yiku Xu ◽  
Lei Yang ◽  
Xuding Song ◽  
Yongnan Chen ◽  
Xuan Peng ◽  
...  
2015 ◽  
Vol 86 ◽  
pp. 272-278 ◽  
Author(s):  
C. Devivier ◽  
V. Tagliaferri ◽  
F. Trovalusci ◽  
N. Ucciardello

2018 ◽  
Vol 25 (4) ◽  
pp. 789-795 ◽  
Author(s):  
Ankur Bisht ◽  
Brijesh Gangil

Abstract Closed-cell aluminum foams with different percentages of zinc content were successfully prepared and investigated. The foamable precursors were prepared in a pit furnace by adding calcium as thickening agent, calcium carbonate as blowing agent and different percentages (0 wt.%, 0.5 wt.% and 1 wt.%) of zinc particles at 650–750°C. The distribution of Zn elements and quassi-static behavior of the foams at room temperature were investigated. The experimental results show that Zn element is uniformly distributed in cell wall matrix. The distribution of Zn elements had a significant effect on the quasi-static compressive behavior of aluminum foams; from the results, it is obvious that zinc-containing foams possessed higher compressive strength and energy absorption capacities than pure aluminum foams. Hence, it can be concluded that increase in percentage of Zn particles helps to increase the compressive strength, plateau region and energy absorption, in addition to providing better and uniform pores.


2010 ◽  
Vol 12 (7) ◽  
pp. 596-603 ◽  
Author(s):  
Dirk Lehmhus ◽  
Joachim Baumeister ◽  
Lennart Stutz ◽  
Eduard Schneider ◽  
Karsten Stöbener ◽  
...  

2018 ◽  
Author(s):  
Devon Jakob ◽  
Le Wang ◽  
Haomin Wang ◽  
Xiaoji Xu

<p>In situ measurements of the chemical compositions and mechanical properties of kerogen help understand the formation, transformation, and utilization of organic matter in the oil shale at the nanoscale. However, the optical diffraction limit prevents attainment of nanoscale resolution using conventional spectroscopy and microscopy. Here, we utilize peak force infrared (PFIR) microscopy for multimodal characterization of kerogen in oil shale. The PFIR provides correlative infrared imaging, mechanical mapping, and broadband infrared spectroscopy capability with 6 nm spatial resolution. We observed nanoscale heterogeneity in the chemical composition, aromaticity, and maturity of the kerogens from oil shales from Eagle Ford shale play in Texas. The kerogen aromaticity positively correlates with the local mechanical moduli of the surrounding inorganic matrix, manifesting the Le Chatelier’s principle. In situ spectro-mechanical characterization of oil shale will yield valuable insight for geochemical and geomechanical modeling on the origin and transformation of kerogen in the oil shale.</p>


2017 ◽  
Vol 5 (3) ◽  
pp. 8
Author(s):  
KUMAR DINESH ◽  
KAUR ARSHDEEP ◽  
AGGARWAL YUGAM KUMAR ◽  
UNIYAL PIYUSH ◽  
KUMAR NAVIN ◽  
...  

Author(s):  
Alexandre Luiz Pereira ◽  
Rafael Oliveira Santos ◽  
DOINA BANEA ◽  
Álisson Lemos

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