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Preparation of high pure and micron-sized α-Al2O3 powder by activated aluminium hydrolysis method Ran Tao1, a, Yutao Zhao2,b , Zhihong Jia3,c and Liang Xu4,d 1School of Material Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, PR China a809094346@qq.com, bzhaoyt@ujs.edu.cn, cjia_zh@126.com, d18020481279@163.com Keywords: High pure α-Al2O3 powder; High pure aluminum; Hydrolysis reaction; Atomization Abstract.
Introduction High pure alumina powder is a important inorganic nonmetallic materials with the optical, electrical, magnetic ,thermal and mechanical properties that cannot be matched by the general alumina powder.
The raw material is high pure aluminium ingot(5N).
Liu: Science& Technology In Chemical Industry, Vol. 1 (2003), p.45 [4] X.
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Forest subsystems provide fuel, building materials, potherb, meat, fruit and domestic water for Hani ethnic minority.
Use of sustainable local materials.
Cheng: Journal of Mountain Science.
Zhao: Advance Materials Research.
Geng: Advance Materials Research.

(1) For practical calculations of thermal conductivity stone materials and light concretes on natural porous aggregates the following formula is proposed: (2) When determining the thermal conductivity of building materials, it is recommended to use the following dependencies: (3) , (4) where the coefficient k takes values depending on the dimension (k = 1.164 for the dimension W/m∙oС.
To meet the energy conservation conditions for KBR conditions, R0 = 2.54 m2∙oС/W further development of a single-layer panel using local materials at this stage is considered impractical.
Resource saving at the stage of production of building materials, wall products and enclosing structures, Building Materials, Moscow. 7 (2013) 12–21
Szokolay, Environmental science handbook for architects and builders, Construction Press, Lancaster, 1980
The Guideto Application, Method sand Materials, Eight Canadian Edition.

Introduction It is necessary to transport some granular materials or semi-liquid chemical raw materials in some actual projects.
But in the process of transportation of these raw materials the traditional lorry without case cover might cause the splash of the chemical raw materials, resulting in waste and danger [1].
· In order to prevent the materials from spilling, a case cover is needed [4]
Dai: Journal of Modern Transportation Vol. 19 (2011) No.3, P 154
Yang: Proceedings of 2012 International Conference on Mechanical Engineering and Material Science (Shanghai, China, 28-30 December 2012). p.627

The theoretical and real chemical compositions of the blank material are presented in Table 1.
All these aspects can also cause and influence other phenomena that occur during small scale deep drawing, like: variation of sheet thickness, nouniform material strength and hence nonuniform material flow in die, material cracking, intensification of springback, wrinkling and earring.
Journal of Manufacturing Science and Engineering, 129(2007) 470-476
Journal of Mechatronics Manufacturing Systems, 1(2008) 23-43
Materials and Manufacturing Processes, 24 (2009) 1274-1281

It has a wide range of applications, such as filter materials, automobile manufacturing, electrical and electronic field, chemical engineering, instrumentation and aerospace industries, etc.[2].
Experimental Materials.
Nano-SiO2: spherical, average particle size 30nm, Zhoushan Mingri Nano-Materials Co., Ltd, China; PPS slice: Fortron, Japanese Polyplastics Group.
[3] Rui Wang, Rong rui Wu, Sheng da Zhang, etc.: Polymer materials science and engineering. 18 4. 181-184 (2002).
[8] Shi Yu Tan, Chang Hong Gu, Zhi Ming Zhou: Journal of Chongqin University (Natural Science Edition). 22 1. 106-111 (1999).

However, fibrous sound absorbing materials have some defects, such as fiber fall-out or the irritation for human skin.
The films [8, 9] and fabric coverings [10] are often applied to sound absorbing materials to protect the material from detrimental environments or to meet aesthetic requirements.
Surface coverings usually contain high Surface coverings usually contain materials with higher sound reflection and obviously affect the properties of the sound absorbing materials.
The hollow 3D crimp PET fibers were used to be the main raw materials for nonwoven fabrics.
Lin, "Manufacturing and Properties of the Fibrous/Aluminum Foil Thermal Insulation", Journal of Advanced Materials (2007).

The fabric texture will be different with different materials, structure, weaving techniques or different finishing methods.
The composition of woven texture Material texture.
Shanghai Textile Science & Technology, 2008,11(36):29-31
Coastal Enterprises and Science & Technology, 2004, 8:17
Journal of Textile Research, 2003, 4(24): 83-84.

Introduction Hard brittle material are increasingly applied in the fields of aerospace and aviation, medical and chemical, so more and more stringent requirements of surface quality of hard brittle materials are also put forward.
However, the further understanding of the basic mechanism of hard brittle materials under TDUVG has not yet been established, and its application in the industrial production and promotion are seriously hindered.
Under different worktable speed, the grinding grooves are almost equal in the width, and there are many marks of the plastic working and a little brittle fracture in the finished surface after TDUVG, so the materials are removed in the ductile way.
Acknowledgements This work is financially supported by the National Science Foundation for Young Scientists of China (No.51205112) and the Doctor Fund of Henna Polytechnic University (No.B2010-76).
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The material properties are listed in Tab.1.
Journal of Railway Science and Engineering, Vol.4, (2007), p. 12-18, in Chinese
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