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Online since: November 2018
Authors: Volker Döge, Árpád W. Imre
On the other hand, by optimization of the physics and electrochemistry of the cells utilizing new materials and electrode structures, the nominal voltage can be increased and/or the internal resistances can be decreased without significant weight and volume increase.
In the center we see the aluminum (positive electrode) and copper foil (negative electrode) respectively, coated on both sides with corresponding active materials.
Thus, long open circuit periods are needed for a complete equilibration of the Li-ion concentration in the solid mater of electrode materials.
It is a small improvement over many years, nonetheless the Li-ion technology still has at least 20% potential to increase the specific energy by utilizing smaller porosities, stabilized material, solid electrolyte, Si-Graphite-anode and higher Ni content in the cathode materials.
Liu, "Battery-Supercapacitor Hybrid Devices: Recent Progress," Advanced Science News, vol. 4, 1-21, (2017)
In the center we see the aluminum (positive electrode) and copper foil (negative electrode) respectively, coated on both sides with corresponding active materials.
Thus, long open circuit periods are needed for a complete equilibration of the Li-ion concentration in the solid mater of electrode materials.
It is a small improvement over many years, nonetheless the Li-ion technology still has at least 20% potential to increase the specific energy by utilizing smaller porosities, stabilized material, solid electrolyte, Si-Graphite-anode and higher Ni content in the cathode materials.
Liu, "Battery-Supercapacitor Hybrid Devices: Recent Progress," Advanced Science News, vol. 4, 1-21, (2017)
Online since: January 2021
Authors: L.M. Abd el-Hafez, Naglaa Glal-Eldin Fahmy, Rasha El-Mashery, Rabiee Ali Sadeek
If nanomaterial is combined with traditional building materials, this may lead to production of building materials with unique properties.
Details of the beams geometry, materials, casting and testing methodology are described.
Table (2) Properties of utilized materials Material and Property Max. or Min.
Table (3) Component material proportions for the HSC mixes Content% Component materials Mix no.
The Effect of Using Nano Materials on the Properties of Cement Paste and Mortar.
Details of the beams geometry, materials, casting and testing methodology are described.
Table (2) Properties of utilized materials Material and Property Max. or Min.
Table (3) Component material proportions for the HSC mixes Content% Component materials Mix no.
The Effect of Using Nano Materials on the Properties of Cement Paste and Mortar.
Online since: October 2012
Authors: Zhi Ping Wang, Pin Chuan Chen
The original microfabrication techniques were derived from the semiconductor industry and the major substrate materials in the late 90’s were silicon and glass.
To obtain the goal of developing a microfluidic device that is low-cost, disposable, less hazardous fabrication processes, and mass produced, new substrate materials with associated fabrication techniques were explored such as polycarbonate, poly(methylmethacrylate) (PMMA), polydimethyl-siloxane (PDMS), and even paper [2].
Since micromilling is following the design pattern to remove materials from the substrate, so it can be used on different substrate materials from polymers to metals and create more possibilities in microstructure patterns and applications.
Brass is selected as the substrate material for micromilling since it is easy to machine and its strength is enough for hot embossing [20-21].
Limbach, “Enhanced machining of micron-scale features in microchip molding masters by CNC milling”, International Journal of Machine Tools & Manufacture 45 (2005) 1542–1550
To obtain the goal of developing a microfluidic device that is low-cost, disposable, less hazardous fabrication processes, and mass produced, new substrate materials with associated fabrication techniques were explored such as polycarbonate, poly(methylmethacrylate) (PMMA), polydimethyl-siloxane (PDMS), and even paper [2].
Since micromilling is following the design pattern to remove materials from the substrate, so it can be used on different substrate materials from polymers to metals and create more possibilities in microstructure patterns and applications.
Brass is selected as the substrate material for micromilling since it is easy to machine and its strength is enough for hot embossing [20-21].
Limbach, “Enhanced machining of micron-scale features in microchip molding masters by CNC milling”, International Journal of Machine Tools & Manufacture 45 (2005) 1542–1550
Online since: June 2022
Authors: Minh Tuan Pham, Van Tu Nguyen, Minh Tuan Nguyen
Finite element analysis (FEA) is employed to evaluate the actual performance of the synthesized CPM with Ti6Al4V material in order to verify the correctness of the synthesis method.
Section 4 presents the simulation results of the synthesized CPM with Ti6Al4V material.
This material has a Young’s modulus of 111 GPa, Poisson ratio of 0.34, density of 4.5 g/cm3, and yield limit of 950 MPa.
Xu, "A totally decoupled piezo-driven xyz flexure parallel micropositioning stage for micro/nanomanipulation," IEEE Transactions on Automation Science and Engineering, vol. 8, no. 2, p. 265–279, 2011
Nai, "Design and Optimization of a Three Degrees-of-Freedom Spatial Motion Compliant Parallel Mechanism With Fully Decoupled Motion Characteristics," Journal of Mechanisms and Robotics, p. 051010, 2019.
Section 4 presents the simulation results of the synthesized CPM with Ti6Al4V material.
This material has a Young’s modulus of 111 GPa, Poisson ratio of 0.34, density of 4.5 g/cm3, and yield limit of 950 MPa.
Xu, "A totally decoupled piezo-driven xyz flexure parallel micropositioning stage for micro/nanomanipulation," IEEE Transactions on Automation Science and Engineering, vol. 8, no. 2, p. 265–279, 2011
Nai, "Design and Optimization of a Three Degrees-of-Freedom Spatial Motion Compliant Parallel Mechanism With Fully Decoupled Motion Characteristics," Journal of Mechanisms and Robotics, p. 051010, 2019.
Online since: September 2021
Authors: Valerii Makarenko, Svitlana Manhura, Maksym Kharchenko, Oleksandr Melnikov, Andrii Manhura
When this ratio exceeds 0.8, the material is considered usable.
Research materials – tubular steels, the characteristics of which are given in Table 1 and 2.
Mechanics of fracture and strength of materials: Reference, Kiev, Scientific opinion
Materials Science, 36(3), 425-430. https://doi.org/10.1007/bf02769606 [6] Vasylenko, I.I., & Melekhov, R.K. (1974).
International Journal of Corrosion, 1-7. https://doi.org/10.1155/2018/1604507 [20] Qin, M., Li, J., Chen, S., & Qu, Y. (2016).
Research materials – tubular steels, the characteristics of which are given in Table 1 and 2.
Mechanics of fracture and strength of materials: Reference, Kiev, Scientific opinion
Materials Science, 36(3), 425-430. https://doi.org/10.1007/bf02769606 [6] Vasylenko, I.I., & Melekhov, R.K. (1974).
International Journal of Corrosion, 1-7. https://doi.org/10.1155/2018/1604507 [20] Qin, M., Li, J., Chen, S., & Qu, Y. (2016).
Online since: September 2021
Authors: Joel Egileoniso, Cleophas Akintoye Loto, Roland Tolulope Loto
The deleterious impact of metallic degeneration is common on engineering materials utilized for structural applications in environments containing chlorides, sulphates and thiosulphates such as buildings and bridges, petrochemical pipelines and refineries, vehicular radiators, boilers, desalination and marine applications [3].
The most common engineering materials are refined ferrous alloys which require enormous quantity of energy to isolate them from their ores.
Experimental Methods Materials Preparation Plain carbon steel (PCS) sheet was obtained from a dealer in Lagos, Nigeria.
Ahmad, Types of corrosion: Materials and Environments, in Principles of Corrosion Engineering and Corrosion Control, 1st Ed., Butterworth-Heinemann, 2006, pp. 120-270
Abza, Short review of factors affecting chemical bath deposition method for metal chalcogenide thin films, International Journal of Thin Films Science and Technology, 8(2) (2019) 43-52. http://dx.doi.org/10.18576/ijtfst/080203
The most common engineering materials are refined ferrous alloys which require enormous quantity of energy to isolate them from their ores.
Experimental Methods Materials Preparation Plain carbon steel (PCS) sheet was obtained from a dealer in Lagos, Nigeria.
Ahmad, Types of corrosion: Materials and Environments, in Principles of Corrosion Engineering and Corrosion Control, 1st Ed., Butterworth-Heinemann, 2006, pp. 120-270
Abza, Short review of factors affecting chemical bath deposition method for metal chalcogenide thin films, International Journal of Thin Films Science and Technology, 8(2) (2019) 43-52. http://dx.doi.org/10.18576/ijtfst/080203
Online since: January 2016
Authors: Soon Yee Liew, Wim Thielemans, Buddhika Hewakandamby
Separation of sulphuric acid from an acid suspension of cellulose nanocrystals by manual shaking
Soon Yee Liew1,a, Wim Thielemans1,2,b and Buddhika Hewakandamby1,c
1 Division of Manufacturing and Process Technologies, Faculty of Engineering,
University of Nottingham
Nottingham NG7 2RD
2 Renewable Materials and Nanotechnology Research Group
Science and Technology
KU Leuven Campus Kortrijk
Etienne Sabbelaan 53
8500 Kortrijk Belgium
asoon.liew@nottingham.ac.uk, bwim.thielemans@kuleuven.be, cBuddhika.hewakandamby@nottingham.ac.uk
Keywords: Cellulose nanocrystals, sulphuric acid, nanoparticle separation, flocculation, acid recovery.
Materials and methods The cellulose source was cotton wool purchased from Fisher Scientific.
Moreover, the sulphuric acid concentration of 30 wt% may be an issue for the membrane material.
Bohn, Cellulose: fascinating biopolymer and sustainable raw material, Angew.
Vermant, Direct visualization of yielding in model two-dimensional colloidal gels subjected to shear flow, Journal of Rheology, 53, (2009), 1437-1460
Materials and methods The cellulose source was cotton wool purchased from Fisher Scientific.
Moreover, the sulphuric acid concentration of 30 wt% may be an issue for the membrane material.
Bohn, Cellulose: fascinating biopolymer and sustainable raw material, Angew.
Vermant, Direct visualization of yielding in model two-dimensional colloidal gels subjected to shear flow, Journal of Rheology, 53, (2009), 1437-1460
Online since: August 2013
Authors: Anthony Keita, Shih Hsien Yang
Introduction
Increased environmental awareness and sustainable construction materials concerns have led to the development of new technologies in the asphalt industry.
Materials and Methods The asphalt binder used in this study is a penetration grade binder 60/70 obtained from China Petroleum Cooperation (CPC).
In order to fully implement the WMA technology, it is important to understand its long-term field-aging characteristic since material aging the roots of many pavement distresses.
WA-RD 650.1, A thesis for partial fulfillment of the degree of Master of Science in Civil Engineering, University of Washington, Seattle, Washington, 2006
[3] Vaitkus, A., Čygas, D., Laurinavičius, A., and Perveneckas, Z., “Analysis and Evaluation of Possibilities for the Use of Warm Mix Asphalt in Lithuania,” The Baltic Journal of Road and Bridge Engineering, vol. 4, no. 2, pp. 80-86, 2009
Materials and Methods The asphalt binder used in this study is a penetration grade binder 60/70 obtained from China Petroleum Cooperation (CPC).
In order to fully implement the WMA technology, it is important to understand its long-term field-aging characteristic since material aging the roots of many pavement distresses.
WA-RD 650.1, A thesis for partial fulfillment of the degree of Master of Science in Civil Engineering, University of Washington, Seattle, Washington, 2006
[3] Vaitkus, A., Čygas, D., Laurinavičius, A., and Perveneckas, Z., “Analysis and Evaluation of Possibilities for the Use of Warm Mix Asphalt in Lithuania,” The Baltic Journal of Road and Bridge Engineering, vol. 4, no. 2, pp. 80-86, 2009
Online since: December 2022
Authors: Dong Guo, Shu Ling Zhang, Wu Shuai Zheng, Teng Long Huang, Feng Guo
Experimental
Materials.
This proves that a layer of material on the surface in Fig. 7b is oxide.
Acknowledgments The authors thank the National Natural Science Foundation of China (51861031) for support.
Bone formation at Ti-6Al-7Nb scaffolds consisting of 3D honeycomb frame and diamond-like carbon coating implanted into the femur of beagles, Journal of Biomedical Materials Research Part B-Applied Biomaterials. 109(2021) 1283-1291
Effect of dopants (F, Si) material on the structure and properties ofhydrogenated DLC film by plane cathode PECVD, Diamond Relat Mater. 110(2020) 108102
This proves that a layer of material on the surface in Fig. 7b is oxide.
Acknowledgments The authors thank the National Natural Science Foundation of China (51861031) for support.
Bone formation at Ti-6Al-7Nb scaffolds consisting of 3D honeycomb frame and diamond-like carbon coating implanted into the femur of beagles, Journal of Biomedical Materials Research Part B-Applied Biomaterials. 109(2021) 1283-1291
Effect of dopants (F, Si) material on the structure and properties ofhydrogenated DLC film by plane cathode PECVD, Diamond Relat Mater. 110(2020) 108102