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Online since: November 2016
Authors: Mahesh Chandra Somani, David A. Porter, Antti Kaijalainen, Jaakko I. Hannula, Devesh K. Misra
Box 4200, 90014 Oulu, Finland 2University of Texas at El Paso, Dept. of Metallurgical and Materials Engineering, Engineering Building, El Paso, TX 79968-0521, USA Keywords: Direct quenching, hardebility, ideal critical diameter, thermomechanical rolling, finish rolling temperature, quenching and partitioning, martensite, retained austenite, bendability.
In the case of a high-aluminium steel Al-Mo (0.19C-0.51Si-1.98Mn-1.06Al-0.52Cr-0.21Mo), the austenite contents varied in a narrow range of 7-9%, regardless of the TP (=TQ) or austenite state.
Unlike in the case of steel High-Si steel, High-Al steels such as Al-Cr (0.21C-0.56Si-1.9Mn-0.92Al-1.1Cr) and Al-Cr-Ni (0.22C-0.55Si-1.5Mn-0.85Al-1.2Cr) in the unstrained condition contract over ≈20 s after the start of stage I, presumably due to interface migration from austenite to martensite, as discussed in literature [19].
It seems that not only the T28J temperature is low, but also the upper shelf energy KV(US) is quite high in the Ni variant (Al-Cr-Ni).
The advantage of strained austenite in respect of the refinement of martensite packets/blocks/laths resulted in improved mechanical properties both for Si- and Al-bearing steels.
Online since: April 2023
Authors: Junaidi Junaidi, Posman Manurung, Indah Pratiwi, Yessi Efridahniar, Wiwin Sulistiani, Iqbal Firdaus, Pulung Karo Karo
According to Tran et al., silver nanoparticles (AgNPs) have higher electrical and thermal conductivity than other metals [1].
This band gap is equal to that obtained in a study by Li et al., which is 2.28-2.55 eV [28-31].
[11] Sertbakan, T.R., Al-Shakarchi, E.K., and Mala, S.S.
[29] El-Sheshtawy, H.
R., and El-Kemary, M.
Online since: January 2009
Authors: T. Hadjersi, L. Guerbous, N. Megouda, O. El Kachai, R. Boukherroub
El Kachai a, R.
Recently, a new method, termed metal-assisted etching, to form porous silicon was proposed by Li et al. [5].
A thin metallic film (Au, Pt, Al, Pd …) is generally deposited directly on a silicon surface prior to immersion in a mixture of HF and oxidizing agent.
Li et al. have obtained a different morphology: pores with columnar structure were formed when a Pt-coated p-type silicon was subjected to etching in the solution 1:1:1 EtOH:HF(49%):H2O2(30%) for 30 s [5].
Online since: July 2015
Authors: Aziman Madun, Mohd Hazreek Zainal Abidin, Mohamad Faizal Tajul Baharuddin, Saiful Azhar Ahmad Tajudin, Nor’aishah Md Ali, Mohd Hafiz Zawawi
El-Qady, U.
El-Kenawy, J.
Al-Arifi (2010): Integrated geoelectrical survey for groundwater and shallow subsurface evaluation: case study at Siliyin spring, El-Fayoum, Egypt, International Journal of Earth Sciences, 99, 1427-1436
Online since: October 2012
Authors: Hui Wang, Qin Zhang, Yu Tian Wang
Huang et. al. raised a novel signal processing method named Hilbert-Huang Transform (HHT) based on EMD (Empirical Mode Decomposition), which is suitable for analyzing nonlinear and non-stationary signal[5].
Although there are several kinds of stop criterion, Wu et. al. suggest fixed sifting time criterion[10].
To overcome this difficulty, a normalization scheme is proposed by Huang et. al. [13].
El.
Online since: June 2014
Authors: Kasama Jarukumjorn, Rapisa Jarapanyacheep
Elzubair et al. [12] also reported that alkali treatment improved flexural properties of piassava fiber/rHDPE composites.
Stark et al. [17] also found that flammability of wood flour/HDPE increased with increasing wood flour content.
Elzubair et al. [12] also observed that alkali treatment improved the compatibility of piassava fiber/rHDPE composites.
El-Zawawy, M.
Online since: December 2014
Authors: Lei Huang, Yi Xuan Wang
Structure under the El Centro earthquake wave (PGA = 4000gal) collapse mode.
[3] Van de Lindt J W, Pei S L, Pryor S E, et al.
[4] Y Li, X Z Lu, Guan H, et al.
[5] Sasani M, Kazemi A, Sagiroglu S, et al.
Online since: July 2014
Authors: Bao Xiang Deng, Pei Pei Li
[4] Rao C N R, Sood A K, Voggu R, et al.
[6]Zhu Y, Murali S, Cai W, et al.
[10] Gomez-Navarro C, Weitz R T, Bittner A M et al.
[13] El Mel, Abdel-Aziz, Duvail, Jean-Luc.
Online since: September 2014
Authors: Sroisiri Thaweboon, Boonyanit Thaweboon
MIC and MBC determination The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values of essential oil were determined using the Millipore Membrane method as described by Tantaoui-Elaraki et al [9].
Laxenaire, et al: Eur.
El-Aziz, E.A.
Kumar, et al: Antimicrob.
Online since: December 2013
Authors: Sumio Hosaka, Takashi Akahane, Miftakhul Huda Huda, Takuya Komori, Hui Zhang, You Yin
., 3Human Resources Cultivation Center, Gunma University. 1-5-1 Tenjin, Kiryu 376-8515, Japan * hosaka@el.gunma-u.ac.jp Keywords: Nanodot, self-assembly, electron-beam drawing, graphoepitaxy, patterned media, magnetic recording.
Bita et al. addressed this issue by proposing the graphoepitaxy of self-assembled block copolymers (BCPs) using two-dimensional periodic-patterned templates [1].
In these technologies, Sakurai et al. [2], Black [3], and Kitano et al. [4] proposed an alternative guide-line template for self-assembly.
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