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Online since: April 2021
Authors: Amel Kaibi, Abderrahim Guittoum, Mohamed Kechouane, Nassim Souami
Microstructure Evolution and Mossbauer Spectroscopy Research
of Nanostructured Ni3 Fe Intermetallic
Kaibi Amel1,2,a*, Guittoum Abderrahim2,b, Souami Nassim3,c
and Kechouane Mohamed2,d
1University Larbi Tébessi - Route de Constantine 12002, Tébessa, Algeria
2Laboratoire de Physique des Matériaux (LPM), Faculté de Physique, USTHB, BP 32 El Alia, Algiers, Algeria
3Centre de Recherche Nucléaire d’Alger, 02 Bd Frantz Fanon, BP 399, Algiers, Algeria
akaibi_amel@yahoo.fr, bguittoum@yahoo.fr, csouaminassim@yahoo.fr, dkechouanem@yahoo.fr
Keywords: Intermetallic Compound, Nanocrystalline Powder, Microstructure, Magnetic Properties, Mössbauer Spectroscopy, Mechanical Alloying, Hyperfine Properties.
Chicinas et al. [11].
Our values are not far from those obtained by Chinnasamy et al. [20] with Hhf =27.85T, for mechanical alloying of NiFe at 20 h and Bruce H.
Meeves et al. [19] with Hhf =29.1T, for sample milled to 32h with a high-energy ball mill.
The evolution observed for the as milled powders are very similar to that reported by Chinnasamy et al. [20].
Chicinas et al. [11].
Our values are not far from those obtained by Chinnasamy et al. [20] with Hhf =27.85T, for mechanical alloying of NiFe at 20 h and Bruce H.
Meeves et al. [19] with Hhf =29.1T, for sample milled to 32h with a high-energy ball mill.
The evolution observed for the as milled powders are very similar to that reported by Chinnasamy et al. [20].
Online since: July 2014
Authors: Joon Woo Park, Sung In Hong, Ki Yong Ann, Hee Jun Yang, Thamara Tofeti Lima
Wang et al studied the same with the metakaolin mixed with alkali-activator [9].
Puertas et al studied mixture of fly ashes and slag, having reported that C-S-H gel was the main reaction product as well [15].Xie and Xi detected a few small reaction products peaks for the XRD analysis [16].
As for Song et al, the main reaction product of blast furnace slag hydration is C-S-H gel with minor amounts of hydrotalcite which is formed only when the slag has a high hydration rate [17, 18].
Al-Saadoum, Effect of cement composition on chloride binding and corrosion of reinforcing steel in concrete, CemConcr Res 1991, vol.21, p.777
El-Mohr and T.D.
Puertas et al studied mixture of fly ashes and slag, having reported that C-S-H gel was the main reaction product as well [15].Xie and Xi detected a few small reaction products peaks for the XRD analysis [16].
As for Song et al, the main reaction product of blast furnace slag hydration is C-S-H gel with minor amounts of hydrotalcite which is formed only when the slag has a high hydration rate [17, 18].
Al-Saadoum, Effect of cement composition on chloride binding and corrosion of reinforcing steel in concrete, CemConcr Res 1991, vol.21, p.777
El-Mohr and T.D.
Online since: May 2024
Authors: Benaoumeur Aour, Sadek Kaddour, Abdellatif Oudrane, Mohammed Benyoub
Falcone et al. [37] presented the implementation of CBHE in Switzerland and Germany.
Gordon et al. [14] conducted an experimental study to examine the efficiency of coaxial heat exchangers.
The basic equations were taken from the studies of Yavuzurk et al. [49] and Yang et al. [1].
El Jery, A.K.
Al-Khoury, S.
Gordon et al. [14] conducted an experimental study to examine the efficiency of coaxial heat exchangers.
The basic equations were taken from the studies of Yavuzurk et al. [49] and Yang et al. [1].
El Jery, A.K.
Al-Khoury, S.
Online since: January 2021
Authors: Sami Kahla, Ahmed Kellai, Said Dehimi, Badreddine Babes
The presence of additives elements such as Si, Ni and Al affect the morphology of cast iron splats, microstructure, and adhesion even decrease markedly the thermal conductivity of cast iron [13-15].
The nickel-based alloy (80% Ni, 20% Al) was also used as an interlayer.
Chemical composition of base metal and filler materials [wt.%] Element C Mn Si S P Cr Ni Al Cu Mg Fe Substrate 3.5 2.5 0.8 0.02 0.06 0.03 0.03 - 0.2 0.06 92.86 Ni -Interlayer - - - - - - 80 20 - - - ENi-CI 1.3 0.8 0.6 0.01 0.01 - 94 - - - 4.00 E308L 0.02 1.8 0.80 0.03 0.03 18.88 10 - 0.2 - 68.04 Results and Discussions Microstructure and EDS analysis The microstructure of the as-received ductile cast iron substrate showing in figure 3 consists of graphite nodules and pearlite surrounded by ferritic matrix, when the proportions of the constituents namely ferrite, graphite and pearlite are summarized in Table 4.
Petitbon, Microstructure and strength of Al-containing gray and nodular irons in the range 1200–1800 F (650–980 °C), Trans.
El-Labban, Microstructure and Wear Behavior of TiC Coating Deposited on Spheroidized Graphite Cast Iron Using Laser Surfacing, Eng.
The nickel-based alloy (80% Ni, 20% Al) was also used as an interlayer.
Chemical composition of base metal and filler materials [wt.%] Element C Mn Si S P Cr Ni Al Cu Mg Fe Substrate 3.5 2.5 0.8 0.02 0.06 0.03 0.03 - 0.2 0.06 92.86 Ni -Interlayer - - - - - - 80 20 - - - ENi-CI 1.3 0.8 0.6 0.01 0.01 - 94 - - - 4.00 E308L 0.02 1.8 0.80 0.03 0.03 18.88 10 - 0.2 - 68.04 Results and Discussions Microstructure and EDS analysis The microstructure of the as-received ductile cast iron substrate showing in figure 3 consists of graphite nodules and pearlite surrounded by ferritic matrix, when the proportions of the constituents namely ferrite, graphite and pearlite are summarized in Table 4.
Petitbon, Microstructure and strength of Al-containing gray and nodular irons in the range 1200–1800 F (650–980 °C), Trans.
El-Labban, Microstructure and Wear Behavior of TiC Coating Deposited on Spheroidized Graphite Cast Iron Using Laser Surfacing, Eng.
Online since: December 2022
Authors: Zaynab N. Rasheed Alraziqi, Qahtan Adnan Hamad, Wissam Nubras Alrawie
Geraets et al., A Feasibility Study on the Usage of Cattail
(Typha spp.) for the Production of Insulation Materials and Bio-Adhesives, Wageningen University and Research Centre, Wageningen, Netherlands, (2017)
El-Beltagi, & R.
Mahmood, Studying the Effect of Mixture of Pomegranate Peel and Licorice on the Mechanical Properties of Epoxy ,Al-Nahrain Journal for Engineering Sciences, 2017, pp.871-875
Al-Shroofy And M.
K.Oleiwi, Q.A.Hamad ," Studying the Mechanical Properties of Denture Base Materials Fabricated from Polymer Composite Material", Al-Khwarizmi Engineering Journal,Vol.14, 2018, P.P.100 [32] R.
El-Beltagi, & R.
Mahmood, Studying the Effect of Mixture of Pomegranate Peel and Licorice on the Mechanical Properties of Epoxy ,Al-Nahrain Journal for Engineering Sciences, 2017, pp.871-875
Al-Shroofy And M.
K.Oleiwi, Q.A.Hamad ," Studying the Mechanical Properties of Denture Base Materials Fabricated from Polymer Composite Material", Al-Khwarizmi Engineering Journal,Vol.14, 2018, P.P.100 [32] R.
Online since: February 2024
Authors: Suntree Sangjan, Busara Pattanasiri
Nonetheless, the XRD peak of g-C3N4 microrod exhibited a notably higher intensity compared to that of the g-C3N4 nanosheet, suggesting a greater degree of structural order in the g-C3N4 microrod than in the g-C3N4 nanosheet, which is consistent with Imran Aslam et al., (2019)
The chemical bond structure of g-C3N4 nanosheets and g-C3N4 microrods can be analyzed using FTIR technique as shown in Fig 1(b).
Al-Osta, Abdullah Almohammedi, R.S.
Al-Buriahi, Muhammad Shahid Mahmood and Mirza Mahmood Baig: Diam Relat Mater.
Madhubala, Baskaran Palanivel, Munusamy Venkatachalam, Ehab El Sayed Massoud and Gedi Sreedevi: Inorg.
Al-Qaradawi, Mohammed A.
Al-Osta, Abdullah Almohammedi, R.S.
Al-Buriahi, Muhammad Shahid Mahmood and Mirza Mahmood Baig: Diam Relat Mater.
Madhubala, Baskaran Palanivel, Munusamy Venkatachalam, Ehab El Sayed Massoud and Gedi Sreedevi: Inorg.
Al-Qaradawi, Mohammed A.
Online since: July 2024
Authors: Muhammad Waqas Malik, Muhammad Abdul Hanan
Literature Review
Paul et. al use a decision support system called Water Evaluation and Planning Model to anticipate the gap in water demand and supply in Chennai, India, till the year 2050, considering the business as usual and different modifications to the existing supply system [10].
In a scenario analysis performed by Hassan et. al in 2019, the water resource is matched to the baseline year 2015 and then examined by two rates of growth scenarios by 2040.
[11] Al-Shutayri, A.
S., & Al-Juaidi, A.
Planning and Management of Water Resources in the Context of Economic Devlopment and Climate Change in Algerian Highlands by the Weap Model, Case of the Gareat El Tarf Basin (Northwestern Algeria).
In a scenario analysis performed by Hassan et. al in 2019, the water resource is matched to the baseline year 2015 and then examined by two rates of growth scenarios by 2040.
[11] Al-Shutayri, A.
S., & Al-Juaidi, A.
Planning and Management of Water Resources in the Context of Economic Devlopment and Climate Change in Algerian Highlands by the Weap Model, Case of the Gareat El Tarf Basin (Northwestern Algeria).
Online since: August 2022
Authors: Harno Dwi Pranowo, Deni Pranowo, Chynthia Azhari Utri
Oyowole et al. conducted a QSAR study on 1,2,3-triazole-pyrimidine compounds as gastric antineoplastic agents.
Hadipour, Adsorption behavior of pristine, Al-, Si-doped carbon nanotubes upon 5-fluorouracil, Chem.
Al Mogren, E.
Al Harbi, Molecular structure, drug likeness and QSAR modeling of 1,2-diazole derivatives as inhibitors of enoyl-acyl- carrier protein reductase, J.
El Aissouq, M.
Hadipour, Adsorption behavior of pristine, Al-, Si-doped carbon nanotubes upon 5-fluorouracil, Chem.
Al Mogren, E.
Al Harbi, Molecular structure, drug likeness and QSAR modeling of 1,2-diazole derivatives as inhibitors of enoyl-acyl- carrier protein reductase, J.
El Aissouq, M.
Online since: June 2014
Authors: Peter Groche, Dominik Huttel, Alexander May, Markus Euler
., et al., Ziehen von Papier und Karton I.
[7] Lohse, H., et al., Ziehen von Papier und Karton II.
[9] Groche, P., et al., Experimental and numerical investigation on the hydroforming behavior of paperboard.
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[17] Johansson, A., et al., Paper friction - influence of measurement conditions.
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[9] Groche, P., et al., Experimental and numerical investigation on the hydroforming behavior of paperboard.
[14] Back, E.L.
[17] Johansson, A., et al., Paper friction - influence of measurement conditions.
Online since: November 2010
Authors: Hong Lin, Xiao Chong Zhao, Yi Zhu Liu, Xin Li, Jian Bao Li
In the opinion of Graetzel et al. [5], the
electron transport and recombination processes govern the operation of the flexible DSCs.
Miyasaka et al. reported a simple doctor-blade method to prepare nanocrystal TiO2 films at a low temperature [34,35].
In our laboratory, Li X et al. prepared a mesoporous TiO2 film with graded structure on a conductive indium-tin oxide (ITO)-coated polyethylene naphthalate (PEN) polymer sheet by the doctor-blade method, where the smaller particles synthesized by hydrothermal method were used as binder [36], and investigated the influence of the components of the graded structure on the electron transport, electron recombination and photovoltaic performance of the flexible DSCs in such a film by nitrogen adsorption-desorption measurement, simulation of graded structure and EIS analysis [37].
Zd(El) represents for Warburg impedance relative to the Nernst diffusion of I3 in electrolyte.
The impedance of the photoanode is given by Kern et al. [52] which is similar to Bisquert's equation [51] as + + = 2/1 2/1 2/1 1 coth 1 1 k d k k d k w i i RZ ϖ ϖ ϖ ϖ ϖ ϖ ϖ ϖ (2) where 2 / LDcbd =ϖ , τ ϖ /1== kk (3) Here Dcb, τ, k, kB, T, q, A, and ns represent effective diffusion coefficient of an electron in the TiO2 nanoparticle, life time of an electron in the film, reaction rate constant for the recombination of an electron, Boltzmann constant, absolute temperature, charge of a proton, the electrode area, and the electron density at the steady state in the conduction band, respectively.
Miyasaka et al. reported a simple doctor-blade method to prepare nanocrystal TiO2 films at a low temperature [34,35].
In our laboratory, Li X et al. prepared a mesoporous TiO2 film with graded structure on a conductive indium-tin oxide (ITO)-coated polyethylene naphthalate (PEN) polymer sheet by the doctor-blade method, where the smaller particles synthesized by hydrothermal method were used as binder [36], and investigated the influence of the components of the graded structure on the electron transport, electron recombination and photovoltaic performance of the flexible DSCs in such a film by nitrogen adsorption-desorption measurement, simulation of graded structure and EIS analysis [37].
Zd(El) represents for Warburg impedance relative to the Nernst diffusion of I3 in electrolyte.
The impedance of the photoanode is given by Kern et al. [52] which is similar to Bisquert's equation [51] as + + = 2/1 2/1 2/1 1 coth 1 1 k d k k d k w i i RZ ϖ ϖ ϖ ϖ ϖ ϖ ϖ ϖ (2) where 2 / LDcbd =ϖ , τ ϖ /1== kk (3) Here Dcb, τ, k, kB, T, q, A, and ns represent effective diffusion coefficient of an electron in the TiO2 nanoparticle, life time of an electron in the film, reaction rate constant for the recombination of an electron, Boltzmann constant, absolute temperature, charge of a proton, the electrode area, and the electron density at the steady state in the conduction band, respectively.