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Online since: November 2005
Authors: Sung In Hong, Shin Hur, Dong Kil Shin
., Korea Institute of Machinery and Materials, Daejeon,
Korea
2
Dept. of Mechanical Engineering, Chungnam National University, Daejeon, Korea
3
IPT Team, Semiconductor Business, Samsung Electronics Co., Yongin, Gyeonggi-Do, Korea
Keywords: Thin films, Polyimide, Mechanical properties, Nanoindentation, Microtensile test
Abstract.
The measured values from graphite nanoplatelet/epoxy composite materials using dynamical mechanical analysis, nanoindentation, and tensile tests were compared with the predicted storage and loss moduli from the related model [4].
It was shown that the Young's modulus obtained in nanoindentation for metal materials was about 15% higher than the values obtained in tensile testing, which can be attributed to the different size and micro structural levels that are probed [5].
Oh: Key Engineering Materials Vol. 270-273 (2004), pp. 1107-1112 [2] S.
Johann: Nanomechanics Research Unit Materials Technology, EMPA [6] ASTM Standard, ASTM designation: D638−03 (2002), pp. 1-15 [7] ASTM Standard, ASTM designation: D882-02 (2002), pp. 1-10 [8] ISO 527-3 International Standard, First edition (1995), pp. 1-5 [9] WC, and Pharr and GM: Journal of Materials Research Vol. 7 (1992), pp. 1564-1583 [10] Xiaodong Li and Bharat Bhushan: Materials Characterization 48 (2002), pp. 11-36
The measured values from graphite nanoplatelet/epoxy composite materials using dynamical mechanical analysis, nanoindentation, and tensile tests were compared with the predicted storage and loss moduli from the related model [4].
It was shown that the Young's modulus obtained in nanoindentation for metal materials was about 15% higher than the values obtained in tensile testing, which can be attributed to the different size and micro structural levels that are probed [5].
Oh: Key Engineering Materials Vol. 270-273 (2004), pp. 1107-1112 [2] S.
Johann: Nanomechanics Research Unit Materials Technology, EMPA [6] ASTM Standard, ASTM designation: D638−03 (2002), pp. 1-15 [7] ASTM Standard, ASTM designation: D882-02 (2002), pp. 1-10 [8] ISO 527-3 International Standard, First edition (1995), pp. 1-5 [9] WC, and Pharr and GM: Journal of Materials Research Vol. 7 (1992), pp. 1564-1583 [10] Xiaodong Li and Bharat Bhushan: Materials Characterization 48 (2002), pp. 11-36
Online since: February 2022
Authors: Alexander E. Burdonov, Konstantin S. Bushuev, Andrey A. Tyutrin
Representative samples were obtained by preliminary thorough mixing of the material and averaging by quartering. 5 simultaneous measurements were carried out for the studied material sample.
The sources of dust in electrostatic precipitators are suspended substances carried out with anode gases – particles of raw materials loaded into the electrolytic pots, solid products of anode destruction, as well as the products of electrolyte evaporation and droplets condensed during cooling of the dusty gas, and captured in convective gas flows.
Somov, Determination of optimal fluorine leaching parameters from the coal part of the waste lining of dismantled electrolytic cells for aluminum production, Journal of Mining Institute. 239 (2019) 544-549
Series: Materials Science and Engineering. 411 (2018) 012052
Deineko, Utilization of lignins: achievements, problems and prospects, Chemistry of Plant Raw Materials. 1 (2012) 5-20.
The sources of dust in electrostatic precipitators are suspended substances carried out with anode gases – particles of raw materials loaded into the electrolytic pots, solid products of anode destruction, as well as the products of electrolyte evaporation and droplets condensed during cooling of the dusty gas, and captured in convective gas flows.
Somov, Determination of optimal fluorine leaching parameters from the coal part of the waste lining of dismantled electrolytic cells for aluminum production, Journal of Mining Institute. 239 (2019) 544-549
Series: Materials Science and Engineering. 411 (2018) 012052
Deineko, Utilization of lignins: achievements, problems and prospects, Chemistry of Plant Raw Materials. 1 (2012) 5-20.
Online since: September 2024
Authors: Vitalii Vekshyn, Olexandr Sincheskul, Hanna Koloskova, Volodymyr Koloskov
In this case, both metals can be considered as substrate materials due to their physical and chemical properties.
Thus, the titanium alloys VT1-2 and OT4-1 were used as carrier materials in further reseach.
Oil & Gas Science and Technology.
Materials Research Bulletin. 95 (2017) 539–545
Journal of Materials Science: Materials in Electronics. 33 (2022) 4568–4578.
Thus, the titanium alloys VT1-2 and OT4-1 were used as carrier materials in further reseach.
Oil & Gas Science and Technology.
Materials Research Bulletin. 95 (2017) 539–545
Journal of Materials Science: Materials in Electronics. 33 (2022) 4568–4578.
Online since: June 2011
Authors: Abel Cherouat, Ali Zghal, A. Ayadi, Mohammed Ali Rezgui, Faouzi Slimani
The coupling is carried out through the concept of effective stress, defined as:
(3)
Here, the damage is one of the thermodynamic state variables that take into account the progressive loss of load carrying capability of the material as a result of some irreversible modifications, such as micro voids formation and growth that initiate in the materials when intense plastic deformation occurs.
Sciences, vol. 44 (12), 2002, 2427-2446
Tech., Vol. 151, Issues 1-3, 2004, 237-241 [9] Takayuki Hama, Tomohiro Hatakeyama, Motoo Asakawa, Hiroyuki Amino, Akitake Makinouchi, Hitoshi Fujimoto, Hirohiko Takuda, Determination of optimal loading profiles in warm hydroforming of lightweight materials, J. of Mate.
Sciences, vol. 49 (2), 200-209, 2007
Ivey: Management Science Vol. 42 (1996), p. 954-973
Sciences, vol. 44 (12), 2002, 2427-2446
Tech., Vol. 151, Issues 1-3, 2004, 237-241 [9] Takayuki Hama, Tomohiro Hatakeyama, Motoo Asakawa, Hiroyuki Amino, Akitake Makinouchi, Hitoshi Fujimoto, Hirohiko Takuda, Determination of optimal loading profiles in warm hydroforming of lightweight materials, J. of Mate.
Sciences, vol. 49 (2), 200-209, 2007
Ivey: Management Science Vol. 42 (1996), p. 954-973
Online since: May 2021
Authors: Kh.S. Razzokov
There is a method for calculating them in the elastoplastic stage of materials operation, which makes it possible to assess the behavior of a construction under operational loads up to destruction.
The physical and mechanical characteristics of the materials of the models were determined by testing special samples.
Razzakov, Composite reinforced concrete shells of building coatings under conditions of long-term operation and seismic effects. – Tashkent, Publishing house of the Academy of Sciences of the Republic of Uzbekistan.
Series: Journal of Physics: Conf: Series: 1425 (2020) 012101, doi: 10.1088 / 1742-6596 / 1425/1/012101
Razzakov, Long-term operation of a round membrane at large deflections, Uzbek Journal Problems of Mechanics, 2002, no. 2, pp. 34-37
The physical and mechanical characteristics of the materials of the models were determined by testing special samples.
Razzakov, Composite reinforced concrete shells of building coatings under conditions of long-term operation and seismic effects. – Tashkent, Publishing house of the Academy of Sciences of the Republic of Uzbekistan.
Series: Journal of Physics: Conf: Series: 1425 (2020) 012101, doi: 10.1088 / 1742-6596 / 1425/1/012101
Razzakov, Long-term operation of a round membrane at large deflections, Uzbek Journal Problems of Mechanics, 2002, no. 2, pp. 34-37
Online since: November 2011
Authors: Jia Guo Ren, Zong Jun Gao, Jia Liang Li, Hong Cao, Qian Qian Wu, Zhao Xiang Zhang, Hai Hui Ma
The Comprehensive Test for Geothermal Tail-Water Disposal
Gao Zong-juna, Ren Jia-guo, Li Jia-liang, Cao Hong, Wu Qian-qian,
Zhang Zhao-xiang and Ma Hai-hui
Shandong University of Science and Technology, Shandong Provincial Key Laboratory of Depositional Mineralization & Sedimentary Minerals, Qingdao,China
a zongjun_gao@163.com
Keywords: geothermal tail-water; disposal; test
Abstract - Geothermal reservoirs and groundwater resources in layered porous media in large sedimentary basins have enormous exploitation potential because of their extensive distribution, great quantity, and feasible temperatures and drilling depths.
After separation, the cheap, clean water can be used as a material for chemical plants.
[4] Ren Jia-guo,WU Qianqian,ZHENG Xi-lai.The Studies of Regional Water Circulation Patterns in the Yerqiang river Basin[J].Journal of Ocean University of China,2006.5(4):357-362
After separation, the cheap, clean water can be used as a material for chemical plants.
[4] Ren Jia-guo,WU Qianqian,ZHENG Xi-lai.The Studies of Regional Water Circulation Patterns in the Yerqiang river Basin[J].Journal of Ocean University of China,2006.5(4):357-362
Online since: March 2015
Authors: Natalia Resnina, Sergey Belyaev, Andrew Voronkov
Tosun, The effect of the combustion channels on the compressive strength of porous NiTi shape memory alloy fabricated by SHS as implant material, Current opinion in solid state and materials science doi:10.1016/j.cossms.2009.07.002
Zheng, Properties of Porous TiNbZr Shape Memory Alloy Fabricated by Mechanical Alloying and Hot Isostatic Pressing, Journal of Materials Engineering and Performance 20 (2011) 783-786
Bassani, A Tuissi, Processing of Shape Memory CuZnAl Open-cell Foam by Molten Metal Infiltration, Journal of Materials Engineering and Performance 18 (2009) 484-489
Tuissi, Functional Characterization of Shape Memory CuZnAl Open-Cell Foams by Molten Metal Infiltration, Journal of Materials Engineering and Performance 20 (2011) 544 – 550
Paperskii, Structure and properties of titanium nickelide materials made by self-propagating high-temperature synthesis, Soviet Physics Journal 20 (1977) 1631-1633
Zheng, Properties of Porous TiNbZr Shape Memory Alloy Fabricated by Mechanical Alloying and Hot Isostatic Pressing, Journal of Materials Engineering and Performance 20 (2011) 783-786
Bassani, A Tuissi, Processing of Shape Memory CuZnAl Open-cell Foam by Molten Metal Infiltration, Journal of Materials Engineering and Performance 18 (2009) 484-489
Tuissi, Functional Characterization of Shape Memory CuZnAl Open-Cell Foams by Molten Metal Infiltration, Journal of Materials Engineering and Performance 20 (2011) 544 – 550
Paperskii, Structure and properties of titanium nickelide materials made by self-propagating high-temperature synthesis, Soviet Physics Journal 20 (1977) 1631-1633
Online since: September 2017
Authors: Konstantin L. Timofeev, A.B. Lebed, A.J. Malyutin
Composition of purified water (existing flowsheet)
pH
Composition/MPC, [mg/dm3]
Са
Mg
suspended materials
dry residues
As
Fe
Cu
Zn
Cl
SO4
К
Na
8.3-9.8
130-160
5.0-25.0
4.0-15.0
1700-2200
0.01-0.08
0.3-4.0
0.03-0.9
0.1-1.7
55-65
1100-1600
20-25
340-390
6.0-9.0
180
40
10
-
0.05
0.1
0.001
0.01
300
100
50
120
Material and Methods
Investigations were conducted on a pilot plant with productivity of 1 m3/h including the following stages:
• An ultrafiltration with submersible polymeric membranes (UF);
• Reversible electrodialysis (EDR);
• Reverse osmosis (RO);
• The selective ion exchange (IE);
• Evaporation (EVP).
The ultrafiltration is based on use of submersible membranes from polymeric materials.
The results of residual water purification Index Unit Initial water (flow 1.1-3.1) Purified water MPC Scheme № 1 Scheme №2 Scheme №3 pH 8.3-9.8 4.5 6 11.1 6.0-9.0 turbidity [FAU] 18-50 0 0 0 - Са [mg/dm3] 145-150 3.1 3.2 <0.1-3.0 180 Mg 9.0-20.0 1.5 2.2 1.2-1.5 40 suspended materials 8.0-12.0 not detected not detected not detected 10 dry residue 1900-2050 <50 <50 <50 - As 0.035-0.05 <0.005 <0.005 <0.005 0.05 Fe 0.6-3.6 <0.05-0.07 <0.05 <0.05 0.1 Cu 0.07-0.75 <0.001 <0.001 <0.001 0.001 Zn 0.26-1.35 <0.01 <0.01 <0.01 0.01 Cl 62-65 1.9 4.7 3.5 300 SO4 1250-1450 10.4 16 <10-23 100 К 21-22 0.3 0.6 - 50 Na 355-380 2.1 6.7 - 120 All three schemes provided the treated water corresponding to the standard of maximum permissible concentration for fishery water bodies.
Demirbas, Heavy metal adsorption onto agro-based waste materials, Mater. 157(2-3) (2008) 220-229
Demirbas, Adsorption of Cu(II), Zn(II), Ni(II), Pb(II), and CD (II) from aqueous solution on Amberlite IR-120 synthetic resin, Journal of Colloid and Interface Science. 282 (2005) 20-25
The ultrafiltration is based on use of submersible membranes from polymeric materials.
The results of residual water purification Index Unit Initial water (flow 1.1-3.1) Purified water MPC Scheme № 1 Scheme №2 Scheme №3 pH 8.3-9.8 4.5 6 11.1 6.0-9.0 turbidity [FAU] 18-50 0 0 0 - Са [mg/dm3] 145-150 3.1 3.2 <0.1-3.0 180 Mg 9.0-20.0 1.5 2.2 1.2-1.5 40 suspended materials 8.0-12.0 not detected not detected not detected 10 dry residue 1900-2050 <50 <50 <50 - As 0.035-0.05 <0.005 <0.005 <0.005 0.05 Fe 0.6-3.6 <0.05-0.07 <0.05 <0.05 0.1 Cu 0.07-0.75 <0.001 <0.001 <0.001 0.001 Zn 0.26-1.35 <0.01 <0.01 <0.01 0.01 Cl 62-65 1.9 4.7 3.5 300 SO4 1250-1450 10.4 16 <10-23 100 К 21-22 0.3 0.6 - 50 Na 355-380 2.1 6.7 - 120 All three schemes provided the treated water corresponding to the standard of maximum permissible concentration for fishery water bodies.
Demirbas, Heavy metal adsorption onto agro-based waste materials, Mater. 157(2-3) (2008) 220-229
Demirbas, Adsorption of Cu(II), Zn(II), Ni(II), Pb(II), and CD (II) from aqueous solution on Amberlite IR-120 synthetic resin, Journal of Colloid and Interface Science. 282 (2005) 20-25
Online since: February 2014
Authors: Li Zhong Han, Jin Quan Zhang, Jian Guo Nie
Reactive Powder Concrete (Reactive Powder Concrete, RPC) is a kind of cement based composite materials of ultra high strength, high durability, high toughness, good volume stability[1], its remarkable characteristics are that high strength, toughness, tensile strength of particularly high[2].
A reasonable failure mode of cross-section of steel -RPC composite beam is determined by the author in the paper for combined structure of the new material and the material properties of RPC, the ultimate bearing capacity calculation formula is deduced, the ratio of height, width of RPC slab and steel beam in composite section and the reinforcement rate of RPC slab are analysis of influence of parameters, the steel common concrete composite beams of the same conditions are compared with the steel-RPC composite beams, it show that the steel -RPC composite beam is relative superiority. 1 Constitutive model of Material The mathematics model of RPC axial tensile stress-strain relationship is selected from model of ideal mechanics of elasticity model in literature [4].
Due to the high tensile strength of RPC materials, in order to ensure the full play of the tensile properties, to refer to the failure mode of steel fiber concrete, the RPC limit bearing capacity state is considered in accordance with the cracking limit state.
Foundation item source: National Science and Technology Support Program (2009BAG15B00) Author's address and email: Research Institute of Highway, Ministry of Transport, Beijing 100088, China (Email1,2: dhlz_2008@163.com , Tel:13804943855 010-62079026) Reference Literature: [1] Richard P, Cheyrezy M.
Experimental Study of Durability of Reactive Powder Concretes[J].Journal of Materials in Civil Engineering, 1996,12: 1-6
A reasonable failure mode of cross-section of steel -RPC composite beam is determined by the author in the paper for combined structure of the new material and the material properties of RPC, the ultimate bearing capacity calculation formula is deduced, the ratio of height, width of RPC slab and steel beam in composite section and the reinforcement rate of RPC slab are analysis of influence of parameters, the steel common concrete composite beams of the same conditions are compared with the steel-RPC composite beams, it show that the steel -RPC composite beam is relative superiority. 1 Constitutive model of Material The mathematics model of RPC axial tensile stress-strain relationship is selected from model of ideal mechanics of elasticity model in literature [4].
Due to the high tensile strength of RPC materials, in order to ensure the full play of the tensile properties, to refer to the failure mode of steel fiber concrete, the RPC limit bearing capacity state is considered in accordance with the cracking limit state.
Foundation item source: National Science and Technology Support Program (2009BAG15B00) Author's address and email: Research Institute of Highway, Ministry of Transport, Beijing 100088, China (Email1,2: dhlz_2008@163.com , Tel:13804943855 010-62079026) Reference Literature: [1] Richard P, Cheyrezy M.
Experimental Study of Durability of Reactive Powder Concretes[J].Journal of Materials in Civil Engineering, 1996,12: 1-6
Online since: June 2018
Authors: Margarita Perkova, Lyudmila Kolesnikova, Elena Korotun
Materials and Methods
The earlier a person decides on his desires and interests in relation to the future profession, the greater amount of knowledge, abilities, and skills he can stock up to acquire a specialty.
An important role is played by the copying method which promotes the development of analytical thinking in students and helps develop artistic skills in working with various art materials.
On the basis of the studied material, they can create artwork with any art material (pencil, liner, gouache, watercolour, pastel, etc.).
It assumes classical art education: the ability to analyse life models, build, transferring design features and apply the sighting method, knowledge and skills to work with various art materials, techniques and methods.
Tribuntseva, Creating conception of recreational areas development on the example of small urban settlements, Research Journal of Applied Sciencens, 9(11) (2014) 887-892
An important role is played by the copying method which promotes the development of analytical thinking in students and helps develop artistic skills in working with various art materials.
On the basis of the studied material, they can create artwork with any art material (pencil, liner, gouache, watercolour, pastel, etc.).
It assumes classical art education: the ability to analyse life models, build, transferring design features and apply the sighting method, knowledge and skills to work with various art materials, techniques and methods.
Tribuntseva, Creating conception of recreational areas development on the example of small urban settlements, Research Journal of Applied Sciencens, 9(11) (2014) 887-892