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Microstructure and Melting Behavior of Rapid Solidified Au-Ag-Ge alloy CUI Da Tian a, LIU Wen Hui b, LIU Long Fei c College of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China a ct_cui@126.com, bwealth9733221@sohu.com, clfliu1@hunst.cn Keywords: Au-Ag-Ge alloy, melt spinning, melting behavior, nanocrystalline.
Compared novel material prepared by rapid solidification technology with traditional material, the former has quite excellent properties which have been widely applied in industrial fields[1-3].
References [1] MALEKANA M, SHABESTARI S G, GHOLAMIPOURB R, SEYEDEIN S H: Journal of Alloys and Compounds Vol. 484(2009), p.708-711 [2] INOUE A, ZHANG W: Materials Transactions, Vol. 43(11) (2002), p. 2921-2925 [3] INOUE A: Acta Materialia, Vol.48(1) (2000), p.279-306 [4] JOHN A W, CHRISTIAN T, RUNE D J, MOGENS A: Journal of Materials Processing Technology Vol. 209(3)(2009), p.1570-1579 [5] HUANG J C, CHU J P, JANG J S C: Intermetallics Vol.17(12) (2009), p.973-987 [6] CHEN Guang, FU Heng-zhi: New metal materials by non-equilibrium solidification (China Machine Press, Beijing 2004) [7] SHEN J, LIU Y C, GAO H X: Journal of Materials Science: Materials in Electronics, Vol. 18(4) (2007), p.463-468 [8] SHEN J, CHAN Y C: Microelectronics Reliability, Vol. 49(3) (2009), p. 223-234 [9] CUI Da-tian, WANG Zhi-fa, ZHOU Jun: Journal of Central South University (Science and Technology) Vol. 38(6) (2007), p.1050-1054 [10] CUI Da-tian, WANG Zhi-fa, WU Hua-bo: Rare
Metal Materials and Engineering Vol. 37(4) (2008), p.690-693 [11] SHEN J, CHAN Y C, LIU S Y: Intermetallics Vol. 16(9) (2008), p.1142-1148 [12] KIM K S, HUH S H, SUGANUMA K: Materials Science and Engineering A Vol. 333(1/2) (2009), p.106-114 [13] CHENG Y Q, MA E, SHENG H W: Applied Physics Vol. 93(2008), p.111-113 [14] LEWANDOWSKI J, WANG W H, GREER A L: Philosophical Magazine Letters, Vol. 85(2) (2005), p.77-87 [15] BALI R, FLEURY E, HAN S H, AHN J P: Journal of Alloys and Compounds Vol. 457(1/2) (2008), p.113-117

Conclusion The sound absorption and isolation characteristics of PTFE Micro-aperture Membrane are almost the same with ordinary materials.
For example, characteristic of impedance is analogous to air, and sound absorption coefficient of Membrane is smaller than other materials, which leads to poor absorption characteristic.
[4] SUN Guang-ron: Oustic and Sound-proof Material and Structure .J.ART SCIENCE AND TECHNOLOGY , No.3,2001, p.12-17
Journal of the Acoustical Society of America VOL.106 ,No. 2,1999, p.756-765
Journal of Applied Physics VOL.85, No.11 ,1999, p.7528-7539.

The Dynamic Responses of Anti-slide Piles Reinforced in the Rubble Soil Landslide Feng Sun 1,2,a Jiming Kong 1,b, Qiang Cai1,2 Fayou A 1,2 , Yun Cui 1,2 1 Institute of Mountain Hazards and Environment, Chinese Academy of Science/ Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Science Chengdu 610041,China 2Graduate University of Chinese Academy of Sciences, Beijing 100101 a iamsunfeng12345@sina.com, b jimingk@imde.ac.cn Foundation item: Transportation Department of Yunnan of the Science and Technology Project (2010)(A)08-b; National Natural Science Foundation of China (50636087) Author Biography: Feng Sun (1979—), Liaoning province Kaiyuan person, Male, Doctor, Major in slope engineering of engineering geology and geotechnical engineering.
Table 1 Physico—mechanical parameters for Material material Specific weigh (kN/m3) elasticity coefficien (MPa) Poisson ratio angle of internal friction (º) cementing power (kPa) slippery body 18.5 17 0.31 24.1 25 sliding face (belt) 17.7 15 0.36 18.71 15.1 slippery bed 22.4 2200 0.24 38.6 500 pile 25 30000 0.2 consideration for elastomer material Fig.1 Sketch of landslide model This landslide locates that the local earthquake basic intensity is Ⅷ.
Acknowledgements Foundation items are Transportation Department of Yunnan of the Science and Technology Project (2010)(A)08-b and National Natural Science Foundation of China (50636087).
Reference [1] Kong Jiming,Cui Yun,Tian Sujun etal．Typical case study on the development characteristics of fragmentation sliding seismic landslide[J].Journal of Sichuan University: Engineering Science Edition, 2009, 41(3):119－124
The typical examples analysis the types of Wenchuan Earthquake landslide［J］.Journal of Soil and Water Conservation, 2009, 23 ( 6) : 66 －70 [5] Zheng Yingren, Zhao Shangyi.

ABCD classification of materials is the more commonly used method.
Use AHP to determine the weight of each factor, sort the classification of materials treat classified materials and get two index values (Wa, Wb)(refer with: Tab. 1).
Tab. 1 Material classification table Material classification Wa Wb Strategic materials Wa>Wa* Wbmaterials Wa>Wa* Wb>Wb* Bottlenecks materials Wamaterials WaWb* The principle of TOPSIS TOPSIS (Technique for order preference by similarity to ideal solution) also known as the ideal solution is developed by CL Hwang in 1981 [4].
Without the need for cooperation in the case, is now on the four materials supplier evaluation.
Journal of Harbin Institute of Technology” Journal of Harbin Institute of Technology, China, 260-263 April 2009

The CZTS uses materials that are abundant and cheaper to produce than CIGS, CIS, CdTe, and silicon solar cells.
Mar, “Materials for Photovoltaics: State of Art and Recent Developments,” International Journal of Molecular Sciences Review, Int.
Hoque, “Investigation of Different Materials as Buffer Layer in CZTS Solar Cells Using SCAPS,” Journal of Clean Energy Technologies, doi:10.18178/jocet.2018.6.4.477, vol. 6, No. 4, July 2018
Mahalakshmi et al, “Deposition of quaternary Cu2ZnSnS4 (CZTS) thin film by chemical bath deposition method for solar cell application,” Journal of Optoelectronics and Advanced Materials Vol. 22, No. 11-12, November –December 2020, p. 619 – 622
Mukhopadhyay et al, “Deposition of quaternary Cu2ZnSnS4 (CZTS) thin film by chemical bath deposition method for solar cell application,” Journal of Optoelectronics and Advanced Materials vol. 22, no. 11-12, November – December 2020, p. 619 – 622

Introduction The need for joints between dissimilar materials often arises in automotive industries, because sound joints between dissimilar materials enable multi-material design methodologies and low cost fabrication process to be employed.
From the view of material supply, aluminum alloys and steels are the most important construction materials for automotive structures.
Experimental materials and procedures In this study, 3.0 mm thick commercially aluminum alloy 5A02 (5A02) sheet and stainless steel SUS304 (SUS304) sheet were used as base materials.
Table 1 Chemical composition of materials (mass %) 5A02 Mg Fe Cr Si Mn Cu Zn Al 2.2 0.27 0.19 0.09 0.049 0.027 0.005 Bal.
Weld Journal. 2007, 86(5):119-124

Reaction Mechanism of Iron-rich Magnesia-corundum Composites at 1420°C Haobo Zhang1,a, Yong Li 1,b, Jialin Sun1, Shuo Cao1, Yongqiang Sun1, Yanjing Li 1,2, Changhe Gao1,2 and Jili Zhang 3 1 School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2 Beijing Tongda Refractory Technologies Co.
Specimens were prepared by using iron-rich magnesia and high-pure magnesia as the main starting materials, and introducing fused corundum of 3%(in mass), 6%, 9%, 12%, 15% respectively and sintered at 1420°C.
However, there is no systematic study on in situ preparation of MgO-Al2O3-FeOn composite materials by using iron-rich magnesia and fused corundum.
In this paper, iron-rich magnesia is a source of iron oxides and spinel solid solution bonded periclase materials were synthesized in the reaction between iron-rich magnesia and fused corundum at high temperature.
Momoda, Solubility of MgO in single-crystal Al2O3, International Journal of High Technology Ceramics. 4(1)(1988) 84

For obtaining ultra-smooth surface, nano-scale abrasives have been widely used to remove work material at atomic level [2].
Acknowledgements The authors gratefully acknowledge the support of National Natural Science Foundation of China (51205180), Ph.D. 
Programs Foundation of Ministry of Education of China (20126201120001) and Chinese Postdoctoral Science Foundation (2013M532092).
References [1] Yuan J L, Zhang F H, Dai Y F, Kang R K, Yang H, Lv B H, Development research of science and technologies in ultra-precision machining field, Journal of Mechanical Engineering. 46 (2010) 161-177
[6] Hao Ping, Lei Hong, Chen Ruling, Cerium-incorporated SBA-15-type materials for CMP: synthesis, characterisation, and CMP application on hard disk substrate, International journal of abrasive technology. 4 (2011) 255-265

It is made of a composite material based on carbon fiber and is capable of large deformations.
These criteria were most suitably met by the composite material based on carbon fibers [3].
x/l 1 y/l 0.1 0.2 0.5 0 Runge-Kutta FEM Fig. 4 The deformation of the rod Conclusion The calculation was performed to determine the methodology necessary for solving major deformation of structural elements made of unconventional materials capable of large deformation at the same time preserving all its elastic properties.
CMES Journal: Computer Modeling in Engineering & Sciences, CMES, Vol. 28, No. 1, pp. 1-14, 2008
International journal for numerical methods in engineering, No. 56, pp. 809-846, 2003

Materials and Methods Modeling was carried out using the MSC.Marc software package.
Jang, Microstructure and creep resistance of a diffusionally aluminized Ni-base superalloy, Metals and Materials International. 22(6) (2016) 1033-1040
Kulevich, The oxidation behaviour of layered Al-Ni coating at high-temperature heating, Materials Today: Proceedings. 38 (2021) 1627-1630
Taube, Effect of the high-heating on the chemical and phase composition of the Al-Ni-Cr layered coatings, Materials Science Forum. 870 (2016) 169-174
Akono, Scratch Tests: A New Way of Evaluating the Fracture Toughness of Materials.