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Synthesis, Structure and Electronic Properties of Li4Ti5O12 Anode Material for Lithium Ion Batteries
Online since: January 2018
Authors: Lkhagvajav Sarantuya, Pagvajav Altantsog, Galsan Sevjidsuren, Namsrai Tsogbadrakh
Lattice constants
Li4Ti5O12
Li7Ti5O12
Measured value
8.365
8.353
First-principles
(Adib et al.) [24]
8.403
8.335
Calculated results
GGA
8.344
8.265
GGA+U+J0
8.543
8.498
We calculated average intercalation voltage which can be obtained from first principles calculations using the Nernst equation according to Eq. 2, [23]
[9] Gieu J-B, Courrèges C, El Ouatani L, Tessier C , J.
[9] Gieu J-B, Courrèges C, El Ouatani L, Tessier C , J.
Online since: March 2007
Authors: Ivani de S. Bott, Franc A. Martins, J.A. Ponciano
Chemical Composition (weight percent)
API X70 API X80
Weld Metal Weld Metal
Element Base
Metal
Externa
l
Interna
l
Base
Metal Externa
l
Internal
C 0.08 0.06 0.06 0.04 0.07 0.08
Si 0.18 0.339 0.342 0.18 0.25 0.21
Mn 1.55 1.59 1.55 1.85 1.86 1.97
P 0.01 0.0085 0.008 0.024 0.017 0.017
S 0.002 0.0036 0.0032 0.004 0.004 0.005
Al 0.043 0.02 0.021 0.033 0.004 0.005
Cu 0.01 0.054 0.051 0.01 0.049 0.045
Nb 0.055 0.025 0.027 0.073 0.044 0.045
V 0.051 0.044 0.048 0.005 0.007 0.004
Ti 0.017 0.01 0.012 0.016 0.015 0.010
Cr 0.02 0.056 0.056 0.32 0.16 0.17
Ni 0.02 0.028 0.027 0.02 0.023 0.021
Sn 0.02 - - - - -
N 0.007 - - 0.004 - -
B 0.0004 0.0041 0.0031 - 0.0001 0.0001
Ca 0.003 - - 0.001 - -
Sb 0.02 - - - - -
Mo - 0.213 0.186 0.03 0.3 0.28
Pcm 0,17 0,20 0,16 0,19
Table1.
Component Content Sodium Thiosulphate (Na2S2O3) 10 -3 mol/l Sodium Chloride (NaCl) 5%vol Acetic Acid (CH3COOH) 0.5%vol Table 3 - Chemical composition of the SSRT test solution The comparative analysis of the stress-strain curves was undertaken on the basis of the following parameters; Yield Strength * +yu ; Ultimate Tensile Strength * +UTSu ; Rupture Strength * +fu ; Elongation at Rupture (El%); Reduction in Cross Sectional Area at Rupture (RA%); and Time to Rupture (TR).
Component Content Sodium Thiosulphate (Na2S2O3) 10 -3 mol/l Sodium Chloride (NaCl) 5%vol Acetic Acid (CH3COOH) 0.5%vol Table 3 - Chemical composition of the SSRT test solution The comparative analysis of the stress-strain curves was undertaken on the basis of the following parameters; Yield Strength * +yu ; Ultimate Tensile Strength * +UTSu ; Rupture Strength * +fu ; Elongation at Rupture (El%); Reduction in Cross Sectional Area at Rupture (RA%); and Time to Rupture (TR).
Online since: October 2014
Authors: Jia Nye Mou, Mao Tang Yao, Ke Xiang Zheng
Neuman et al. [12] tested acid fracture conductivity at closure stress higher than 5000psi for Brazil off-shore carbonates and found that acid fracture conductivity can be retained at closure stress higher than 5000psi in case of channel created in the surfaces.
Nasr-El-Din.: Effect of Acid Spending on Etching and Acid-Fracture Conductivity.
Nasr-El-Din.: Effect of Acid Spending on Etching and Acid-Fracture Conductivity.
Online since: September 2014
Authors: Jacopo Seccatore, Marcello Veiga, Giorgio de Tomi
Small-scale and Artisanal mining
Often one refers to “Artisanal and Small-scale Mining” (ASM) when talking about “mining by individuals, groups, families or cooperatives with minimal or no mechanization, often in the informal (illegal) sector of the market” (Hentschel et al., 2002).
Villas-Bôas, Chirstian Beinhoff Editores, pp. 79-92 [21] Vargas Penna, P.C. (2009) "O Panorama da Mineração Brasileira", Comissão de Serviços de Infra-estrutura, Brasilian Institute of Mining (IBRAM) [22] Chaparro Ávila E. (2003) Small-scale mining: a new enterpreneurial approach, CEPAL – SERIE Recursos Naturales e infraestructura [23] De Mendonça M.G., Bardella Castro J.A. (2011) Atividade mineral Goiana de pequeno porte: um estudo sobre o controle de impacto ambiental, Anais de iniciação cientifica da UNUCSEH, vol.4 [24] Kilgerman D.C., La Rovere E.L., Costa, M.A. (2001) Management on Small-Scale Gold Mining Activities in Brazil, Environmental Research, Section A87, pp. 181-198 [25] Hilson, G.
Villas-Bôas, Chirstian Beinhoff Editores, pp. 79-92 [21] Vargas Penna, P.C. (2009) "O Panorama da Mineração Brasileira", Comissão de Serviços de Infra-estrutura, Brasilian Institute of Mining (IBRAM) [22] Chaparro Ávila E. (2003) Small-scale mining: a new enterpreneurial approach, CEPAL – SERIE Recursos Naturales e infraestructura [23] De Mendonça M.G., Bardella Castro J.A. (2011) Atividade mineral Goiana de pequeno porte: um estudo sobre o controle de impacto ambiental, Anais de iniciação cientifica da UNUCSEH, vol.4 [24] Kilgerman D.C., La Rovere E.L., Costa, M.A. (2001) Management on Small-Scale Gold Mining Activities in Brazil, Environmental Research, Section A87, pp. 181-198 [25] Hilson, G.
Online since: November 2005
Authors: Yong Hak Huh, Chang Doo Kee, Dong Iel Kim
In this study, using the micro-ESPI technique, the in-plane tensile strains in TiN and Al thin film
materials were continuously measured during micro-tensile loading.
References [1] Mohamed Gad-el-Hak: The MEMS Handbook (CRC Press, 2002) [2] W.N.
References [1] Mohamed Gad-el-Hak: The MEMS Handbook (CRC Press, 2002) [2] W.N.