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Synthesis of Nanocrystalline Silver by Warm-vacuum-compaction Method Wei Liu1, a, and Qionghua Zhou2, b 1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, P.R.China 471003 2Medical College, Henan University of Science and Technology, Luoyang, P.R.China 471003 aliuweidavid@yahoo.com.cn, bzhouqionghua2000@163.com Keywords: Nanocrystalline silver, Warm-vacuum-compaction, Density, Microhardness Abstract.
In the last thirty years, a number of processing techniques have been developed to produce nc-materials.
Nc-materials were first fabricated by IGC, which was studied in detail by Gleiter et al. since 1980s [3].
MA is usually used to prepare brittle materials or alloys with high melting temperature.
References [1] Y.F.Shen, W.Y.Xue, Y.D.Wang, Z.Y.Liu and L.Zuo: Surface & Coatings Technology, Vol. 202 (2008), p. 5140 [2] J.Petzold: Journal of Magnetism and Magnetic Materials, Vol. 242-245 (2002), p. 84 [3] H.Gleiter: Prog.

Zhu et al.: submitted to Journal of Environmental Protection Science (1997） [3] Zhifan.
Zhang: submitted to Journal of Shenyang Jianzhu University (2007) [5] Minghua.
Han, in: Experimental Study on Filtration Materials Using Chicken Feather as the Oil Smoke Purificant, Journal of Environmental Protection Science (2004)
Zhu, in: Decoloring of Dyeing Effluent With Modified Keratin Proteolytic Products, volume 2 of Journal of Sichuan Uion University (Engineering Science Edition) (19982)
Wang, in: Research on Preparation and Decolorization of Feather Keratin Decolorizing Agent, volume 10 of Journal of Science Technology and Engineering (2010).

[2] Li Ling, Li Deyu, et al: Materials Engineering Vol. 10 (2000), P. 36-41
[5] R.Cook, P.G.Grocock, et al: Journal of Materials Processing Technology Vol. 55 (1995), P. 76-84
[6] Yun M, Lockyer S A, Hunt J D: Materials Science and Engineering Vol. 280 (2000), P. 116-123
[9] Li Jianping, Zhang Jia fu: Journal of Huazhong University of Science and Technology Vol. 38 (2010), P. 96-99
[14] Li Jianping, Hu Jianbing, et al: Journal of Huazhong University of Science and Technology Vol. 38 (2010), P. 126-132

In this paper, ecotype cementing materials (with steel slag, mineral slag etc. as the main raw materials), waste aerated concrete, regeneration light sand and etc. were used as the main materials to prepare thermal insulation masonry mortar.
Thus, the purpose of this study is to prepare the ecotype cementing materials by using ecotype cementing materials with steel slag, mineral slag etc. as main raw materials, firstly.
Raw materials and experiment methods Main raw materials.
Journal of Anhui Agricultural Sciences. 25 (2012) 12605-12608
New Building Materials.11 (2002) 35-38.

Kaewkhaoc Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand atuscharoen@hotmail.com bnatthakridta@gmail.com cmink110@hotmail.com Keywords: Glasses, Er3+, Visible Luminescence, Optical Abstract.
The starting materials SiO2, Al2O3, CaO, BaCO3, Sb2O3, Na2CO3 and H3BO3 are all reagent grade chemicals.
Batches of well mixed starting materials; weighted to 50 g according to the formulas, were melted in the alumina crucibles at 1100 °C inside an electronic furnace.
Moreover, according to the classical dielectric theory, the refractive index depends on density and on polarizabilities of atoms in a given materials [11].
[11] Ruangtaweep, Y., Kaewkhao, J., Kirdsiri, K., Kedkaew, C., and Limsuwan, P., 2011, “Properties of CoO doped in Glasses Prepared from Rice Hush Fly Ash in Thailand”, IOP Conference Series: Materials Science and Engineering, Vol. 18, pp. 1-6

Introduction Science and technology development causes the need for ceramic materials with thermal and chemical resistance, high thermal conductivity, good dielectric and mechanical properties [1,2].
The widespread use of nitride and oxynitride ceramic materials is constrained, mainly due to the lack of effective production technologies.
Rumyantsev/ Atomic layer deposition of tin oxide using tin tetraethyl for high capacity Li-ion batteries// Journal of Vacuum Science & Technology A, V. 35, Issue 1, 2017, article # 01B137, pp. 1-11 (DOI: 10.1116/1.4972554) [6].
Qu, Synthesis of aluminum nitride powder by carbothermal reduction of a combustion synthesis precursor, Materials Research Bulletin 43 (2008) 2954–2960 [11].
Thermal Plasma Spheroidization of High-Nitrogen Stainless Steel Powder Alloys Synthesized by Mechanical Alloying // Metals and Materials International. 2018.

Fatigue and Fracture of Engineering Materials and Structures 25 (2001), 755 - 764 [3] R.
Proc. of 16th International conference on composite materials, Kyoto, 2007 [5] A.
Ehrenstein, Polymeric Materials.
Encyclopedia of Materials: Science and Technology, 2001, 9444 - 9449 [12] M.
Materials Testing, 54 (2012), 750-755 [14] S.

Within the elastic range of the materials, natural frequency of thin-walled components can be analyzed quantitatively with the software Abaqus.
Wen, An improved prediction of stability lobes using nonlinear thin wall dynamics, Journal of Materials Processing Technology (2010).
[2] Ge Maojie, Sun Jie, Li Jianfeng, Study on milling stability of thin-walled titanium alloy components with paraffin reinforcement, Journal of Shandong University(Engineering Science)(2011) vol.41,No.1(71-77)
Becker, Modeling and simulation environment for machining of low-rigidity components, Journal of Material Processing Technology (2004)vol. 153-154(67-73)
Journal of Material Processing Technology (2003)vol.139(332-336)

When n is 950r/min and v is 118mm/min，the strength of the FSW joint of Titanium/Aluminum dissimilar materials is 131MPa which is the highest．
FSW is a solid state welding process which isn’t basically influenced by the physical and chemical properties, mechanical properties and crystal structure of materials, it is enormously advantagerous to overcome weld difficulty which comes from performance differences of different materials, and can avoid some defects which occur in fusion welding and reduce the formation of brittle intermetallic compounds, so it is more suitable for the joining of dissimilar materials.
So about the FSW of Titanium and Aluminum dissimilar materials, further measures (such as the design of stir head, add the middle materials etc.) are took to improve the strength of joint and then it is possible to carry out the applications of engineering.
Journal of Material Science and Technology Vol. 17 (2001), p. 439 [2] Minggao Yan, Xueren Wu, Zhishou Zhu.
Materials Letters Vol. 56 (2002), p. 647 (in Chinese) [6] Wilden J, Bergmann J P.

and are the volume occupied by solid materials and its upper bound, respectively.
Here, suppose material properties are .
Paulino: International Journal for Numerical Methods in Engineering, Vol. 77(2009), p. 301 [2] N.
Saitou: Journal of Mechanical Design, Vol. 127(2005), p. 34 [3] W.H.
Beckers: International Journal for Numerical Methods in Engineering, Vol. 78(2009), p. 631 [5] J.H.