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Online since: June 2010
Authors: Tomasz Lipiński
The structure and mechanical properties of Al-7%SiMg alloy
treated with a homogeneous modifier
Tomasz Lipiński
University of Warmia and Mazury in Olsztyn, The Faculty of Technical Sciences Department of
Materials Technology, St: Oczapowskiego 11, 10-957 Olsztyn, Poland
tomasz.lipinski@uwm.edu.pl
Key words: Al-Si alloy, structure, modification, silumin, crystallization
Abstract: Results of studies on the modification of Al-7%SiMg alloy with a homogeneous modifier
obtained by fast cooling of homogeneous modifiers at V=200 K/s are presented in the paper.
All measurements were carried out according to the standard EN 10003-1 Metallic materials-Brinell test-Part 1: Test method, using a Brinell/Vickers hardness tester, model HPO-250, with a standard ball, 2.5 mm in diameter, at a load of 612.9 N.
Journal of Light Metals 1 (2001)
Material Characterization 59 (2008)
Materials Science and Engineering A 413 (2005)
All measurements were carried out according to the standard EN 10003-1 Metallic materials-Brinell test-Part 1: Test method, using a Brinell/Vickers hardness tester, model HPO-250, with a standard ball, 2.5 mm in diameter, at a load of 612.9 N.
Journal of Light Metals 1 (2001)
Material Characterization 59 (2008)
Materials Science and Engineering A 413 (2005)
Online since: June 2013
Authors: Jin Ping Li, Wen Jie Feng, Tong Tong Yin, Wen Yaw Chung
Nowadays we define 4 different kinds of humidity sensors according to the difference of the sensing materials.
The capacitive sensor comprises of two parallel metal plates that are separated by the material such as air, which is called as the dielectric material.
Materials And Methods 2.1 Readout Circuit Design Strategies.
[4] QiuFeng Liao,Yi Song Zhan, “The Application Of Polymer In sensors”, Industrial Materials, Vol.150,pp.101-104, 1999
[10] Ai Wang,“Basic Circuit Theory”, Shanghai Science and Technology Literature Publishing House, 2000
The capacitive sensor comprises of two parallel metal plates that are separated by the material such as air, which is called as the dielectric material.
Materials And Methods 2.1 Readout Circuit Design Strategies.
[4] QiuFeng Liao,Yi Song Zhan, “The Application Of Polymer In sensors”, Industrial Materials, Vol.150,pp.101-104, 1999
[10] Ai Wang,“Basic Circuit Theory”, Shanghai Science and Technology Literature Publishing House, 2000
Online since: August 2013
Authors: Na Sui, Yu Liu, Bao Shan Wang
Materials and methods
Plant materials
Two types of Suaeda salsa L. plants, which grown in the intertidal zone (phenotype: red-violet) and in high salinity soils at elevation and land far from the seaside (phenotype: green) of the Yellow River Delta, were used as material.
The dry weight (DW) was measured after the fresh material was dried at 80 ˚C.
The dry weight (DW) was measured after the fresh material was dried at 80 ˚C for 48 h.
Acknowledgements The research was supported by the Natural Science Foundation of China (31140088).
Journal of Plant Nutrition. 15 (1992) 591-604
The dry weight (DW) was measured after the fresh material was dried at 80 ˚C.
The dry weight (DW) was measured after the fresh material was dried at 80 ˚C for 48 h.
Acknowledgements The research was supported by the Natural Science Foundation of China (31140088).
Journal of Plant Nutrition. 15 (1992) 591-604
Online since: March 2012
Authors: Yu Mei Bao, Lei Wu, Li Jie Weng
Introduction
Bioceramic, a kind of inorganic biomedical materials, has advantages of innocuity, corrosion resistance, excellent bioactivity and biocompatibility.
Biomedical metal materials, applied extensively in the early prosthesis replacement, have high strength and toughness while easy corrosion and bad biocompatibility in body fluid resulting in toxic substances.
It is able to yield a strong interfacial bond between the substrate and the coating without significant dilution of one material into the other, by means of rapidly melting and solidifying coating materials and surface layers of the substrate [4].
Acknowledgments The authors would like to acknowledge the Project 50975259 and 51105339 supported by Natural Science Foundation of China.
Beyer, Modeling the Influence of Process Parameters and Additional Heat Sources on Residual Stresses in Laser Cladding, Journal of Thermal Spray Technology. 16(2007) 355-373
Biomedical metal materials, applied extensively in the early prosthesis replacement, have high strength and toughness while easy corrosion and bad biocompatibility in body fluid resulting in toxic substances.
It is able to yield a strong interfacial bond between the substrate and the coating without significant dilution of one material into the other, by means of rapidly melting and solidifying coating materials and surface layers of the substrate [4].
Acknowledgments The authors would like to acknowledge the Project 50975259 and 51105339 supported by Natural Science Foundation of China.
Beyer, Modeling the Influence of Process Parameters and Additional Heat Sources on Residual Stresses in Laser Cladding, Journal of Thermal Spray Technology. 16(2007) 355-373
Online since: February 2012
Authors: Sheng Chen, Hao Dan Liu, Min Su, Li Wei Tang, Sheng Wang
Electrochromic (EC) materials exhibit reversible coloration when applying electrical potential.
EC materials found great application as “smart material” in advanced displays and smart windows [8,9].
Researchers all over the world have made great effort in the research and development of new type polythiophene materials.
Experimental Materials. 3-bromothiophene (3-BrT; purity > 98%) were purchased from Zhejiang Shou and Fu Chemical (Jinyun, China).
Heeger: Chinese Journal of Physics, Vol. 13 (1991), p.140(In Chinese) [13] A.
EC materials found great application as “smart material” in advanced displays and smart windows [8,9].
Researchers all over the world have made great effort in the research and development of new type polythiophene materials.
Experimental Materials. 3-bromothiophene (3-BrT; purity > 98%) were purchased from Zhejiang Shou and Fu Chemical (Jinyun, China).
Heeger: Chinese Journal of Physics, Vol. 13 (1991), p.140(In Chinese) [13] A.
Online since: December 2009
Authors: Hui Huang, Zhong Cheng Guo, Jin Quan Xu
Synthesis of Conducting Polyaniline Using Compound Oxidant
HUANG Hui1,a XU Jin-quan1,b
and GUO Zhong-cheng
1,c
1
Faculty of Material and Metallurgical Engineering, Kunming University of Science and Technology,
Kunming 650093, P.R.
Obtained materials were characterized by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy (Raman) and X-ray diffraction (XRD) measurements, and determined conductivity of PANI. 1 Experiment 1.1 Materials Aniline (An) was distilled twice under vacuum and store under nitrogen in a refrigerator.
According to the results, it can be concluded that when the H2SO4 concentration is l mol/L, the conductivity and yield of materials reach the peak. 2.2 XRD XRD patterns of obtained PANI and PANI-EB in optimum condition were showed in Fig. 3.
Hai-yong: Journal of Functional Materials Vol. 31 (2000), p.548 [12] H.
Roth (Eds.), Springer Series in Solid State Science, vol.76, Springer-Verlag, Berlin, 1987, p. 244
Obtained materials were characterized by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy (Raman) and X-ray diffraction (XRD) measurements, and determined conductivity of PANI. 1 Experiment 1.1 Materials Aniline (An) was distilled twice under vacuum and store under nitrogen in a refrigerator.
According to the results, it can be concluded that when the H2SO4 concentration is l mol/L, the conductivity and yield of materials reach the peak. 2.2 XRD XRD patterns of obtained PANI and PANI-EB in optimum condition were showed in Fig. 3.
Hai-yong: Journal of Functional Materials Vol. 31 (2000), p.548 [12] H.
Roth (Eds.), Springer Series in Solid State Science, vol.76, Springer-Verlag, Berlin, 1987, p. 244
Online since: March 2014
Authors: Kamil Řehák, Bjørn Skallerud
The material property reading according to element position was chosen [6,7].
Florian, Estimation of Local Mechanical Properties of Highly Porous Ceramic Materials, Chemicke listy (2012) 476-477 [4] P.
Advanced Materials Research (2012) 1330-1333 [5] R.
Konecny, Material Properties of Bone Tissue Obtained from CT for Biomechanics Purposes, Mendel Journal series (2010) 483-490
[9] V LaRussa, Biomechanical aspects of distraction osteogenesis, PhD Thesis, Dep Structural Engineering, Norwegian Univ Science and Techn, (2012), 250
Florian, Estimation of Local Mechanical Properties of Highly Porous Ceramic Materials, Chemicke listy (2012) 476-477 [4] P.
Advanced Materials Research (2012) 1330-1333 [5] R.
Konecny, Material Properties of Bone Tissue Obtained from CT for Biomechanics Purposes, Mendel Journal series (2010) 483-490
[9] V LaRussa, Biomechanical aspects of distraction osteogenesis, PhD Thesis, Dep Structural Engineering, Norwegian Univ Science and Techn, (2012), 250
Online since: June 2014
Authors: Kuo Wei Chen
Generally, the composition and amount of emulsifying additives are classified as confidential, there may be use hydrocarbons or hydrogen compounds composed of polymer composite materials with different ingredients and methods, most will receive 4 to 6% of the energy saving effect, compared to the above methods, which is clearly more cost-effective.[6]
Research Method
Liquid waste of waste rubber after pyrolysis in resource chemical plant.
The Recovered Fuel is the raw material of the Emulsified Heavy Oil#1.
Journal of the biomass energy society of China,2009,V28:95-101
Progress in energy and combustion science,2002, 28: 385-404
Environmental Science &Technology, 2006, 40(17): 5553-5559.
The Recovered Fuel is the raw material of the Emulsified Heavy Oil#1.
Journal of the biomass energy society of China,2009,V28:95-101
Progress in energy and combustion science,2002, 28: 385-404
Environmental Science &Technology, 2006, 40(17): 5553-5559.
Online since: August 2013
Authors: Mei Zhu, Sun Jian Qiu, Ping Sun, Yang Wang
c16
0.2500
Circular recyclable c17
0.7500
Green building materials b7
0.6694
The steel structure system c18
0.3743
Using environmental protection renewable building materials c19
0.5712
Decorative harmless degradable materials c20
0.0545
Environmental protection and energy saving b8
0.0879
Maintenance structure meet energy conservation standards c21
0.6434
Using renewable resources c22
0.2553
Comprehensive treatment of the wastes c23
0.1013
Note:When the order≤ 2, matrix has complete consistency;
2)50 questionnaires were distributed graded by the expert and its universal format is shown in Table 4.
It shows the use of eco-technology, especially green building materials, is the technical support of achieving intensive design.
Acknowledgements This work was financially supported by independent subject from National Key Laboratory of Subtropical Building Science (2013ZC11):The Research on the Intensive Design Strategy of the Cultural Complex.
Architectural Journal,2007(2):p. 84-87.
Science paper Online [J]. 2010(5):p. 499-504.
It shows the use of eco-technology, especially green building materials, is the technical support of achieving intensive design.
Acknowledgements This work was financially supported by independent subject from National Key Laboratory of Subtropical Building Science (2013ZC11):The Research on the Intensive Design Strategy of the Cultural Complex.
Architectural Journal,2007(2):p. 84-87.
Science paper Online [J]. 2010(5):p. 499-504.
Online since: July 2020
Authors: Budhy Kurniawan, Azwar Manaf, Agung Imaduddin, Sigit Dwi Yudanto
Phase Evolution and Critical Temperature of MgB2 Superconductor Made of β-Rhombohedral Boron with Temperature Sintering Variation
Sigit Dwi Yudanto1,2,a, Agung Imaduddin2,b, Budhy Kurniawan1,c,
Azwar Manaf1,d*
1Department of Physics, Universitas Indonesia, Kampus UI, Depok, 16424, Indonesia
2Research Center for Metallurgy and Materials, Indonesian Institute of Sciences, South Tangerang, 15314, Indonesia
asd.yudanto@gmail.com, bagungi@gmail.com, cbudhy.kurniawan@sci.ui.ac.id, dazwar@ui.ac.id
Keywords: β-rhombohedral boron, Critical Temperature, MgB2, Superconducting.
MgB2 was a simple superconductor with un-expensive raw materials.
A hexagonal magnesium granule (crystalline, 98.5% of purity, Kanto chemical, granules), and β-rhombohedral boron (crystalline, 99% of purity, Kanto chemical, flake) were used as starting materials.
Acknowledgement The authors gratefully acknowledge the support of Postgraduate Program of Materials Science Universitas Indonesia and Research Center for Metallurgy and Materials – LIPI for the research facilities.
Yudanto, et al, Improvement in the Crystallographic Phase Content and Superconducting Properties of Mechanically Alloyed Mg, Journal of Superconductivity and Novel Magnetism 32 (2019) 2829–2835
MgB2 was a simple superconductor with un-expensive raw materials.
A hexagonal magnesium granule (crystalline, 98.5% of purity, Kanto chemical, granules), and β-rhombohedral boron (crystalline, 99% of purity, Kanto chemical, flake) were used as starting materials.
Acknowledgement The authors gratefully acknowledge the support of Postgraduate Program of Materials Science Universitas Indonesia and Research Center for Metallurgy and Materials – LIPI for the research facilities.
Yudanto, et al, Improvement in the Crystallographic Phase Content and Superconducting Properties of Mechanically Alloyed Mg, Journal of Superconductivity and Novel Magnetism 32 (2019) 2829–2835