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Online since: March 2016
Authors: Yuri V. Luniakov
Recently, Zhu et al. [8] found a new high-pressure phase of Mg2Si with a monoclinic structure at pressures of 11.1–37 GPa.
At the postprocessing stage, the symmetry of various structures was identified using the ISOTROPY package of Stokes et al. [17], implemented by USPEX.
These results confirm other high-pressure structures besides P63/mmc and Pnma can be involved, explaining the observation of a new monoclinic structure reported by Zhu et al. [8].
The lattice constant for the antifluorite structure at P=0 coincides with the theoretical results of Hao et al. [19] and agrees with the experimental data of 6.35 Å [19, 21] and 6.34 Å [22].
According to the early proposals of Dyuzheva at el. [23, 24], based on X-ray data analysis there are possible polymorphic transformations of the Ni2In structural type (by analogy with the Mg2Sn polymorphic phase transition [25]) due to a different linking of the identical coordination polyhedra.
Online since: May 2011
Authors: Vladimir V. Stolyarov
Alexandrov et al: Mater.
Prokoshkin et al: Fiz.
El-Sherik, U.
Prokoshkin et al: Phys.
Migranov et al: Mater.
Online since: January 2019
Authors: Valeria Daniele, Giuliana Taglieri, Ludovico Macera
Chelazzi, et al.
El Ladki, O.
Arguiñarena, et al., Alkaline and alkaline-earth compounds as catalysts for the methanolysis of sunflower oil, Catalysis Today 133-135 (2008) 305-313
Giorgi, M., et al., Nanoparticles of Mg(OH)2: synthesis and application to paper conservation, Langmuir 21 (2005) 8495–8501
Ortega-Huertas, et al., Nanostructure and Colloidal Behavior of Ca(OH)2: implications for the Conservation of Cultural Heritage, Langmuir 21 (2005) 10948-10957
Online since: May 2013
Authors: Okoye Celestine N., Richard Urama, Yudiesky Bernai-Aguilar, Jose R. Marty-Delgado
Carvalho, et. al. [17] for parameter identification and the shape optimization problems.
[6] Sebastian, P., et al., Multi-objective optimization of the design of two-stage flash evaporators: Part 2.
El-Ghandour.
[16] Sun, G., et al., Multi-fidelity optimization for sheet metal forming process.
[22] Sun, G., et al., Multiobjective robust optimization method for drawbead design in sheet metal forming.
Online since: February 2006
Authors: Andreas Trautmann, Michael F. Zaeh
See Table 1. 2,0 2,5 3,0 3,5 4,0 4,5 5,0 2000 2200 2400 2600 2800 3000 0 1 2 3 4 5 6 width w mm PHPDL W vf m/min 0 1,5 2,0 2,5 3,0 3,5 4,0 5,0 6,0 Material Property Al Al2O3 Melting Temperature [°C] 660 2054 Vaporisation Temperature [°C] 2060 ©/© Thermal Conductivity [W m -1 K -1] 230 6.3 - 30 Density [g cm -3] 2.7 3.9 Table 1: Material Properties In addition the thermal conductivity of Al2O3 is below that of pure aluminum.
So for these experiments the amount of Al 4047 A was normalized with respect to the welding speed.
These quantities are defined as follows [16]: (1) (2) (3) L a ET E E »j a m M E E »j * +]_ laser m mo w P P hTTcvA -/©©© » 0 t j EL is the energy irradiated by the laser onto the surface, Ea is the energy absorbed by the workpiece and Em is the energy necessary just to melt the base metal.
Trautmann, A. et al.: Forschung als Motor der Leichtbau-Fügetechnik, in: Blech in Form, Vol. 2 (2004), p. 32-34 [2] M.F.
Trautmann, et al.: Den Vorsprung sichern, in: Blech in Form, Vol. 5 (2004), p. 23-27 [3] H.
Online since: February 2023
Authors: Payam Ismael Abdulrahman, Dilshad Kakasor Jaf
Several researchers, including Jonkers et al. [4] and Van Tittelboom et al. [22], and Su et al. [19] proposed using microorganisms to create self-healing concrete.
According to the previous research by Luo et al. [3], the best method for bacteria-based self-healing concrete has been shown to be water curing.
From a study by Qureshi et al. [38], the crack width in cement mix was compared before and after healing.
[27] Abo-El-Enein, S.A., Ali, A.H., Talkhan, F.N., Abdel-Gawwad, H.A., Application of microbial biocementation to improve the physico-mechanical properties of cement mortar, HBRC Journal. 9 (2013) 36–40
S., & Al-Tabbaa, A., Glass encapsulated minerals for self-healing in cement-based composites, Construction and Building Materials. 98 (2015) 780-791
Online since: December 2022
Authors: Andi Idhil Ismail, Ridhwan Haliq, Kelvin Kan
[2] Luna Lama F, Rodríguez-Padrón D, Puente-Santiago AR, Muñoz-Batista MJ, Caballero A, Balu AM, et al.
[4] Lotfabad EM, Ding J, Cui K, Kohandehghan A, Kalisvaart WP, Hazelton M, et al.
[8] Xu SD, Zhao Y, Liu S, Ren X, Chen L, Shi W, et al.
[15] Tsai SY, Muruganantham R, Tai SH, Chang BK, Wu SC, Chueh YL, et al.
[24] Idris AM, El-Zahhar AA.
Online since: October 2003
Authors: A.P.S. Selvadurai
Kiyama et al. [18] also observed similar results for the permeability evolution of granites subjected to tri-axial stress states.
Auriault, et al.
Ghaboussi and E.L.
Oden, et al.
Selvadurai, et al.
Online since: August 2018
Authors: Banjuraizah Johar, S.F. Khor, M.N. Mohd Zainol, Tinesha Selvaraj
This statement was agreed by Guo et al. [19] stated that the addition of Fe2O3 causes changes in the unit cell volume and leads to the formation of cubic and tetragonal phases in 8YSZ.
Guo et al. [19] had discussed thoroughly on the substitutional and interstitial of Fe2O3 doped YSZ in their previous studies.
In another study, Barbashov et al. [24] mentioned that 2 mol% of Fe2O3 was doped to 6-12 mol% of YSZ and results showed that 10YSZ had the maximum conductivity corresponding to the minimal volume of crystal lattice.
In a case conducted by Wilhelm et al. and Wang et al., it was proposed that the solubility limit of Fe in 8YSZ was 8.06 mol% and 14 mol% to 16 mol% respectively[36], which suggests there were no peaks detected in the secondary phase of Fe oxides in both cases.
El Kadiri, and L.
Online since: July 2020
Authors: Charlos T. Stevanus, norma kinasih, Iman S. Nugraha, Alamsyah Aprizal, Adi Cifriadi, Thomas Wijaya, Dadi R. Maspanger, Arief Ramadhan
Introduction Peatland fire in Indonesia has peaked happened in 2015 during a long drought season of El-Nino period.
The basic material of rubber composite was produced referred to Kinasih et al.[16].
Khaloo et al. [23] reported that dam structures become more brittle as their size increases.
Fu et al. [25] stated that the composite strength was really related to the interaction between matrix and filler.
This data showed linearly agreed with Sundari et al. [8] and Cao et al.[9] research result that CO2 emission increased as lowering ground water level.
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