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Introduction Thermal protection materials on hypersonic aerospace vehicles will be exposed to temperatures of 1500°C and above.
Zaykoski, Oxidation-based materials selection for 2000°C + hypersonic aerosurfaces: theoretical considerations and historical experience, Journal of Materials Science.39 (2004) 5887-5904
Zimmermann, Processing and characterization of ZrB2-basedultra-high temperature monolithic and fibrousmonolithic ceramics, Journal of Materials Science.39(2004) 5951-5957
Kerans, A model for transitions in oxidation regimes of ZrB2, Materials Science Forum.595-598 (2008) 823-832
Christensen, Mechanics of Composite Materials, HihnEiley& Sons, New York, 1979.

Acknowledgements The article is supported by Shandong province science and technology research project (2012 G0030011) and Shandong Provincial Natural Science Foundation (ZR2010AM002), China.
Journal of Mechanical strength, 23(2001) 260-262(In Chinese)
Journal of Jianggangshan University (Natural Science), 31(2010)71-75(In Chinese)
Journal of Mechanical Strength, 33(2011)534-537(In Chinese)
[8] James M.Gere , Mechanics of materials, 5th ed.

Introduction Various metallic materials are employed extensively in medical field areas including many health care items such as orthopedic implants [1].
[5] Budak, E., An analytical design method for milling cutter with non-constant pitch to increase stability‖, Journal of Manufacturing Science and Engineering, Vol.125, pp.35-38, 2003
In-Applied Mechanics and Materials, vol. 660, pp. 65-69.
In Key Engineering Materials, vol. 407, pp. 612-615.
In IOP Conference Series: Materials Science and Engineering, 100(1)1, 012057, 2015.

In this paper,by using cement, sand and other materials to make the M5, M7.5, M10 three strength grades cement mortar, the effect of water cement ratio and cement dosage on the strength of cement mortar was studied.
Introduction According to the similarity theory in the design of indoor model test,similar materials were determined, then the ratio of similar materials was changed to simulate the performance of different geological structure[1].
Acknowledgement The research project was supported by national natural science foundation of China (51204215) and Doctor special research fund of colleges and universities(20134321120004) and also funded by Hunan province science and technology plan projects (2013SK3150).
[2] Xiaoqiu Fan, Baoning Hong, Xin Hu:Journal of Geotechnical Engineering, (2008).
Journal of Silicate, (2011).

Polyaniline Grafted Amino-functionalized Graphene Nanocomposite with Excellent Electrochemical Performance for Supercapacitor Electrode Materials Yu Liu1, a, Xinyan Su1, 2, b, Shanyi Guang3, c and Hongyao Xu1, d* 1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China 2Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University, Shanghai 200444, China 3College of Chemistry & Chemical Engineering, Donghua University, Shanghai 201620, China aleoliu@mail.dhu.edu.cn, bxysu@shu.edu.cn, csyg@dhu.edu.cn, dhongyaoxu@163.com Keywords: Supercapacitor, Covalent functionalization, Graft, Polyaniline, Graphene.
As a result, the production of high performance supercapacitor electrode materials that integrate the advantages of the potentially high energy density of pseudocapacitance electrode materials and high power density and good stability of carbon materials has attracted great research interests [11-14].
Experimental Materials.
Gogotsi, Materials for electrochemical capacitors, Nat.
Chen, Supercapacitor devices based on graphene materials, J.

As far as those teaching materials of thermodynamics statistical physics in china are concerned [1], internal energy U is always seen as the functions of temperature T and volume V, and enthalpy H is always seen as the functions of temperature T and pressure p.
Leff: American Journal of Physics, Vol. 37 (1969) No.1, p.65
Alifu: Journal of Xinjiang Normal University (Natural Sciences Edition), Vol. 26 (2007) No.4, p.51.
Zhuo: Journal of Dezhou University, (1990) No.2, p.47.
Dong: Science times, (2010) No.15, p.166.

Pineapple leaf fiber contains a lot of phenols and their derivatives which are effective natural bacteria resistant materials and inhibit the metabolism and physiology of bacillus and other microorganism, break the structure of germ, and repress the generation of bacillus until the death of germ.
Test material and methods Test material.
In pineapple leaf fiber degumming process continuously removing pectin, lignin, grease materials such as wax, hemicellulose, phenolics would loss as the degumming process.
Journal of natural products, 2008,71(8):1427-1430
Journal of Membrane Science, 2008, (319): 149—157

Çelik: Journal of Materials Processing Technology, Vol. 141 (2003) No.1, pp.67-76
Rao: Materials Science and Engineering A, Vol. 407 (2005) No.25, pp.77-83
Jod: Journal of Materials Processing Technology, Vol. 186 (2007) No.1-3, pp.22-26
Omori: Materials Science and Engineering A, Vol. 287 (2000) No.2, pp.183-188
Ohyanagi: Journal of Materials Science, Vol. 41 (2006) No.3, pp.763-777

Materials and Methods Goethite was prepared using the method of Schwertmann and Cornell [3].
Parfitt: Anion adsorption by soils and soil materials.
Journal of Soil Science. 41 (1990), p. 607-612
Chinese Journal of Soil Science.36 (4) (2005), p. 568-570
Soil Science Society of American Journal. 44(1980), p. 500-505

Aluminum-based metallic material as the frame or the skin material is widely used in vehicle industrial production.
The triboelectrification theoretical analysis of material The material triboelectric testing platform is designed for triboelectric properties of material study[2].
Constant friction of the skin material and the space particles can be equivalent to a current source charging to the material.
Journal of Detection & Control, 1999, 21(4):46~49 [2] Hui-zhi Zheng, Xiao-feng Hu, Zhao-heng Du.
Beijing: Science Press. 1983 [7] C.