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Online since: December 2013
Authors: Wei Feng Yao, Pei Fu Wang, Fu Tao Niu
AlPO4-5 molecular sieve crystal is one kind of microporous materials.
The organic material was removed by calcination in air at 600°C.
Acknowledgements This work was financially supported by the Key Laboratory in the Department of Resources Chemistry at Shanghai Normal University,Innovation Program of Shanghai Municipal Education Commission(12YZ144),the National Natural Science Foundation of China (no. 21103106).
Fujishima, Japanese Journal of Applied Physics 44 (2005) 8269–8285
Online since: July 2014
Authors: Chun Yan Gao, Quan Chen Gao, Jian Guang Niu
The Application of Origin Software in the Data Processing of Rock Creep Experiment Chunyan Gao1, ,2,a, Jianguang Niu2,b and Quanchen GAO1,c 1School of Mechanics & Civil Engineering,China University of Mining & Technology(Beijing),China 2School of management science and Engineering,Shijiazhuang University of Economics,China agaochunyan2010@163.com, bniujianguang10@163.com, cgqc@cumtb.edu.cn Keywords:data processing, rheological experiment, Origin software, curve fitting.
Axial direction creep curve fitting There are various rheological models and different rock materials should take diverse models with various forms and parameters.
References: [1] Jun Sun:Rheology and engineering application of geotechnical material.
[3].Qingzhong Fan, Yanfa Gao. in:Chinese Journal of Rock Mechanics and Engineering, 2005(11):1273.In Chinese
Online since: July 2015
Authors: Nur Arfian, Rony Wijaya, Dwi Cahyani Ratna Sari, Djoko Prakosa, Muhammad Mansyur Romi, Santosa Budiharjo
The ideal mannequin should be durable, low cost, giving direct feedback to examiner, and can be produced using local material [2,3].
Material and Methods Gynecology Bimanual Examination Mannequin We made pelvic torso model mannequin which consists of pelvic cavity with right and left thigh based on anthropometric measurement [4].
For further improvements, we still need to determine the degree of hardness of the material, elasticity of the skin, durability of the mannequin and consistency of the circuit system.
Siddiqui, Research in Teaching Science and Mathematics, Ashish Publishing House, 8/81 Punjabi Bagh, New Delhi, India, 2004
International Journal of Academic Research. 3(1) (2011) 306-309
Online since: May 2011
Authors: Jun Ping Yuan, Wei Li, Wen Xian Guo
Research of Color And Discoloration Resistance of 18K Rosy Gold for Ornaments Yuan Junping1,2,a, Li Wei1,b, Guo Wenxian2,c 1Department of Materials Science and Engineering, Jinan University, Guangzhou, 510632, China 2Jewelry Institute of Guangzhou Panyu Polytechinc, Guangzhou, 511483, China ayuanjp@pyp.edu.cn, bliweijn@yahoo.com.cn, cguowx@pyp.edu.cn Key words: ornament 18K rosy gold color discoloration resistance Abstract. 75Au25Cu was the basic rosy gold alloy for jewelry, but it had no good brightness and was prone to tarnish and darken.
As materials for ornaments, they should have good color & brightness and better preferable discoloration resistance, and will not easily tarnish or darken when they are worn or in storage.
Pure gold, pure copper, pure zinc, pure silver, pure silicon and pure cerium were used as raw materials.
Journal of Alloys and Compounds, 1997(257): 306-312
Quantitative investigation on color characteristics of metallic materials and its application to development of nickel-free white copper alloys [D].
Online since: October 2023
Authors: Stanislav Koval’chuk, Volodymyr Muravlov, Yuliia Skoriak, Oleksii Goryk
Sierakowski, The behavior of structures composed of composite materials, Springer Dordrecht, 2002
Tolstopyatov, Account of the cross-sectional deplanation of a composite bar in determining the critical force, Mechanics of Composite Materials, 39(2) (2003) 149–152
Zhou, The experimental study on concrete-filled thin-walled square steel box short columns fixed with composite steel bar, Applied Mechanics and Materials, (94–96) (2011) 1590–1595
Antonets, Solution to the task of elastic axial compression-tension of the composite multilayered cylindrical beam, Strength Materials, 51 (2) (2019) 240–251
Rotko, Refined solution of the timoshenko problem for an orthotropic beam on a rigid base, Materials Science, 46 (1) (2010) 56–63
Online since: July 2022
Authors: Jakub Horník, Vladimír Mára, Radek Bednář
Materials ductility is also affected, where the ductility and percent reduction area (Z) decreases notably in comparison to as-cast, but they slowly increase with increasing deformation magnitude.
Advanced Materials Research, 939, 2014, p. 299–304
Archives of Materials Science and Engineering, Vol. 28 (nr 2), 2007, p. 69–76
Materials, 13 (5), 2020, p. 1042
International Journal of Cast Metals Research, 27 (2), 2014, p. 107–114.
Online since: January 2013
Authors: Guo Dong Cui, Han Bing Zhang, Tian Bo Jiang, Shang Guang Yang
Effect of process temperature on the microstructure and properties of low-temperature gas multi-component thermochemical treatment 45CrMoV alloy steel Guodong Cui1, a, Hanbing Zhang1, b, Tianbo Jiang1, c and Shangguang Yang1, d 1 School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China a gdcui@home.swjtu.edu.cn, b cycxdl@163.com, c 1195449679@qq.com, d Yangxiudandan90@163.com Keywords: 45CrMoV; Microstructure; Wear testing; Tensile test; Corrosion test Abstract.
The microstructure of the heat-treated materials is tempered troostite .The properties test specimens were machined into the shape and dimension as shown in fig.1.
According to GB/T228-2002materials at room temperature tensile test method>,the result of 45CrMoV and treated samples after stretching test are show in table 3.The material yield strength and the ultimate strength are lower after stretching test.
Journal of Beijing University of Aeronautics and Astronautics 1993; No3
Effect of process temperature on the microstructure and properties of gas oxynitrocarburized 35CrMo alloy steel.Materials and Design 31(2010);2654-2658
Online since: April 2004
Authors: Soon Bok Lee, Dong Cheon Baek, Tae Sang Park
That had not previously been considered mechanical materials thus are not well characterized regarding their mechanical properties.
Nickel thin film is one of the important materials used in mold or structure of LIGA process.
Lee, Transactions of Materials Processing Vol. 11, No. 7 (2002) p. 614 4.
Edwards, Journal of Micro electro mechanical Systems, 6 (3) (1997) p. 193 �� S.
Ericson, , Micro-electro- mechanical Structure for Materials Research, Materials Research Society Symposium, San Francisco, CA 518, (1998) p.51-56
Online since: July 2015
Authors: Mihai Cojocaru, Florică Tudose
The SPHT (combustion synthesis) assures the possibility of obtaining of metallic materials from elements characterized by large differences between their melting temperatures; this type of metallic materials such as the IMC, the composites with IMC matrix or with ceramic matrix can be prepared through other processes only with difficulty.
The presence of the aluminium oxide together with the Al-Ni intermetallic compounds in the composite materials processed by techniques which are specific to the powder metallurgy is beneficial for the applications where this category of products is meant.
Froes, Production of rapidly solidified metals and alloys, Journal of Metals, (36) 4, (1984), pp.20-33
Sekhar, Dimensional changes during micropyretic synthesis, Materials Science and Engineering A, (160), (1993), pp.221-227
Yiasemides, Production of Nichel aluminide (NiAl) Synthesis, Processing and Modeling of Evaluate Materials, 2th Conference ASM, (1991), pp.315- 318
Online since: September 2012
Authors: Nauman Dastgir, Pooria Pasbakhsh, Norhazlina Ismail, Kheng-Lim Goh, Ning Qun Guo
Here, all materials were assumed to be linear elastic, homogeneous and isotropic.
At high temperatures, the metals soften and plastic deformation of asperities becomes easier, the internal energy of the bonding materials (copper and aluminum) increases, atomic diffusion is enhanced, and hence the solubility of the materials also improves.
This would mean that much higher stresses would be transferred to the integrated circuit itself, which could lead to much more serious reliability issues than those we have today and would possibly require integrated circuits to be reinforced with stronger materials.
Harman, Wire bonding in microelectronics: materials, processes, reliability and yield, McGraw-Hill (2010)
Vath, Journal of Materials Science, Vol. 42 (2006), p. 615
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