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Online since: October 2015
Authors: María Antonia Mas, J.M. Monzó, M.V. Borrachero, J. Payá, Mauro M. Tashima, Lourdes Soriano
After that, a lot of efforts have been made in this area, such as the research done by Palomo et al.[4,5], Davidovits [6,7] and van Deventer et al. [8-10].
Studies performed by Payá et al. [15] shows that independently from the origin of FCC, this byproduct presents an uniform composition.
El techo que cubre el mundo: la teja de microconcreto” Ed.
El techo que cubre el mundo: la teja de microconcreto” Ed.
Online since: January 2007
Authors: Terukazu Tokuoka, Toshihiko Kaji, Takao Nishioka
The microstructure consists of fine Al crystal grains (grain size; around 200-500nm), and inter-metallic compounds.
We have developed a P/M Aluminum alloy with heat-resisting properties, Al -Si -TM -RE alloy [2].
Mg/m3) Al-12Si-1.2Ni -1Cu-1Mg Al-17Si-3.5(Fe、 Ni)-1.5Zr-5MM Chemical composition (mass%) JIS AC8A-T7 New PM-Al alloy 60 110 Fatigue strength at 523K (MPa) 170 230 U.T.S at 523K (MPa) 83.0 89.5 Young's module (GPa) 21.0 16.9 C.T.E (×10-6/K) 2.70 2.84 Density (Mg/m3) Al-12Si-1.2Ni -1Cu-1Mg Al-17Si-3.5(Fe、 Ni)-1.5Zr-5MM Chemical composition (mass%) JIS AC8A-T7 New PM-Al alloy Table .1 shows the properties of the powder forging sample which was made from this Al -Si -TM -RE alloy.
Properties of New PM-Al alloy Fig.9.
Tensile fracture surfaces of this P/M-Al materials
Online since: November 2018
Authors: Volker Döge, Árpád W. Imre
Battery cell components Chemical formulation Type of el.
Root cause Aging mode Main macroscopic effect Low neg. electrode potential SEI growth (by consuming lithium and solvent); T-activated, el.
-chemical R↑ ® Capacity↓, DLi,el↑ High pos. electrode potential Oxidation of electrolyte components; T activated, el.
Capacity↓ ® R↑, DLi,el↑ High discharge rate Particle (contact) cracking, hot spots; physical, chemical R↑, Capacity↓ High charge rate Lithium plating on (neg. electrode); el. chemical., chemical Capacity↓ ® R↑ SoC swing (DSoC) Mechanical disintegration from active particle to cell level; physical, el.
As one example Sarwar et al. investigated the combination of battery cells and supercapacitors in a passive system, and showed that such a combination is a promising solution for the very power demanding HEV [23].
Online since: May 2007
Authors: K.H. Chen, H.C. Fang, Z. Zhang, L.P. Huang
High purity aluminum (99. 9 %), magnesium (99. 9 %) and zinc (99 %), and Al-Zr, Al-Cu, Al-Cr and Al-Yb alloys as raw materials were smelted into the alloys.
The spherical coherent dispersoids contain Yb, Zr and Al according to EDX analysis.
Gerard and E.L.
Zakharov, et al: Mater.
Fang,et al.
Online since: February 2023
Authors: E. Chitra, H. Mary Shyni
Ezz El-Din Hemdan et al [16] proposed a framework of seven pre-trained classifiers called COVIDX-Net and trained it with X-ray images for the automatic detection of COVID-19.
[7] Silva, Pedro, et al.
[16] Hemdan, Ezz El-Din, Marwa A.
Victor, et al.
[22] El Asnaoui, Khalid, and Youness Chawki.
Online since: July 2020
Authors: Amirah Abdul Latif, Halimah Mohamed Kamari, Nurisya Mohd Shah, Nurhayati Mohd Nor
Rajendran et al., [15] also reported that a high cross link density of glass network has Poisson ratio in order of 0.0-0.2, while a low cross link density glass network will have Poisson’s ratio between 0.3 and 0.5.
El-moneim, L.A.
El-latif, Ultrasonic studies on ternary TeO2 - V2O5 - Sm2O3 glasses, Materials Chemistry and Physics. 61 (1999) 103–109
El-Mallawany, E.
[12] A.A El-moneim, Acoustical and structural properties of 65SiO,-15PbO-5CaO-( 15-x)K,O-xNa,O glass system, Materials Chemistry and Physics. 52(97) (1998) 36–40
Online since: October 2021
Authors: Adam Otabil, Mohamed El-Hofy, Mohamed Abdel Hady Gepreel
Microstructure and Mechanical Properties Change with Cold Rolling of New Ti-13Nb-1.5Ta-3Mo Alloy Adam Otabil1,a*, Mohamed El-Hofy2,b, Mohamed A.H.
Gepreel1,c* 1Materials Science and Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab City 21934, Alexandria, Egypt. 2Industrial and Manufacturing Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab City 21934, Alexandria, Egypt.
According to Min et al, “the combination of dislocation slips and {332} (113) twinning was helpful for the achievement of high strength and strong ductility in Ti-15Mo-5Zr and Ti-10Mo-2Fe alloys.
Mo(eq) = 1.00[Mo]+ 0.22[Ta]+ 0.28[Nb]+ 0.67[V] +1.60[Cr]+2.90[Fe] -1.00[Al] (1) Fig. 2 The Bo/Md map for Ti-13Nb-1.5Ta-3Mo indicating the strategic position highlighted in blue spot.
Online since: April 2019
Authors: Gobwute Rujijanagul, Supalak Manotham, Pharatree Jaita, Tawee Tunkasiri, Narumon Lertcumfu, Suwanan Thammarong, Nattaporn Pimpha
El-Mahllawy, A.
El Nagar, Production of geopolymer composites enhanced by nano-kaolin material, J.
EL Achouri, M.
Mustafa Al Bakri, H.
El-Naggar, M.
Online since: August 2020
Authors: Jaroslav Halvonik, Lucia Majtánová, Ľudmila Kormosova
In the 1960s, Moe [11] and Hognestad & Elstner [8] conducted research, while more recent work has been performed by El-Salakawy [6] and Teng, Cheong & Kuang [12].
The most recent work has been undertaken by Borges, Melo, Gomes [3], and also by El-Shafiey, Hussein & Abdel-Aziz [5].
Eight slabs with symmetrically placed openings tested Augustin et al. [1] and [2].
The experiences from non-linear modelling of the flat slab specimens with openings by Augustin et al. [1] were utilized for the non-linear analyses.
El-Salakawy, M.
Online since: April 2022
Authors: J. Ren, D.O. Daramola, K.M. Oluwasegun, J. Akpoborie, Omotayo Sanni, Ojo Sunday Isaac Fayomi, Wan Nik Wan Mohd Norsani
THERE ARE VARIOUS ADSORPTION ISOTHERMS, SUCH AS FREUNDLICH, LANGMUIR, HILL, KHAN, FLORY HUGGINS, EL-AWARDY, AND FRUMKIN.
Rocco, et al., Glycine max meal extracts as corrosion inhibitor for mild steel in sulphuric acid solution, Journal of Materials Research and Technology. (2020) 912756-12772
El-Azaly, Henna extract as green corrosion inhibitor for carbon steel in hydrochloric acid solution, Int.
Chen, et al., Papaya leaves extract as a novel eco-friendly corrosion inhibitor for Cu in H2SO4 medium, Journal of Colloid and Interface Science, 582 (2021) 918-931
El-morsi, M.
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