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Surface Morphology of AlN Nucleation Layer Grown on Si by MOCVD Shu FANa, Le YU, Xiaolong HE, Ping HANb, Caichuan WU, Jiangping DAI, Xuefei LI, Bin LIU, Liqun HU, Zili XIE, Xiangqian XIU, Peng CHEN, Dunjun CHEN, Hong ZHAO, Xuemei HUA, Rong ZHANG and Youdou ZHENG School of Electronic Science and Engineering Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials National Laboratory of Solid State Microstructures Nanjing University, Nanjing 210093, China a 634866159@qq.com bhanping@nju.edu.cn Keywords: AlN NL, thickness, SEM, AFM Abstract.
Introduction AIN material is widely applied in various areas such as microelectronics, optoelectronics, surface acoustic devices and high bandwidth communications devices and etc.
Song, Materials Review, 24 (15), 307 (2010)
[2] Yiren Chen, Materials Letters, 4 October (2013)
Claudel, Journal of Crystal Growth, 335 (2011) 17–24

Koo, in Proceedings "International Journal of Offshore and Polar Engineering", Vol. 14, 2004, 2-10
DeArdo, in "Materials Science and Technology", Special Edition on Microalloyed Steels, London, UK, 2009, in press
Klein, in "Materials Science and Technology" 2007, AIST, Warrendale, PA, pp 355-366
DeArdo, Unpublished Research, Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, 2007
Graville, in proceedings "Welding of HSLA(Microalloyed) Structural Steels", 1978, ASM, Materials Park, OH, p. 85

Dynamic Wettability of Rice Straw Bing Liu1, a, Feng-hu Wang1, b*, An-ying Jiao2,c, Jian-ping Sun1,d, Meng-Ying Zhen1,e 1Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China 2Forestry School, Northeast Forestry University, Harbin 150040, China aice8515@163.com, bfenghuwa@hotmail.com, cjiaoanying008@163.com dsjp_jpcn@163.com, ezhen.mengying@163.com Corresponding author: Material Science and Engineering College, Northeast Forestry University, Harbin 150040.
Materials and Methods Materials preparation.
Over time,CaH2 treatment effect had no obvious change With growth time prolonged, a large number of crystal material Ca (OH) 2 formation, affecting the wetting effect; The optimum conditions of processing technology were obtained through orthogonal test using NaOH treating rice straw surface method: concentration of NaOH is 0.6%, solvent ratio 1:3.5 and reaction time 12h.
The Japan Wood and Fiber Science Vol. 36 (2004), p.239-249
Journal of Northeast Forestry Universiry Vol. 37 (2009), p.84-86

Weng Key Laboratory of Materials Advanced Technologies，Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China a gong_107@163.com, bqushuxin@home.swjtu.edu.cn Keywords: calcium phosphate cement; zirconia; injectability; compressive strength Abstract: In the present study, ZrO2 was added into the injectable calcium phosphate cements (CPCs) to improve their mechanical strength.
Materials and methods The present injectable CPC were comprised of α-TCP and HA with the mass ratio of 98:2 [6].
Manjubala: Materials Letters. 50 (2001), p. 199-205 [6] Patrick Frayssinet, Laurent Gineste, Philippe Conte: Biomaterials 19 (1998), p. 971-977 [7] C.
Feng: Key Engineering Materials Vols. 309-311 (2006), p. 873-876 [8] Standard Test Method for Time of Setting of Hydraulic Cement Paste by the Gillmore Needles, ASTM C266-89, Annual Book of ASTM Standards, vol. 04.01: Cement, Lime, Gypsum.
Fernández: Journal of Biomedical Materials Research.

One is the peeling mechanism for peeling steel cable and collecting the peeled waterproof materials; the other is traveling mechanism which is used to supplement the displacement caused by peeling; the two mechanisms cooperate with each other and maintain the constancy of tension angle.
Therefore, the peeling detector can provide true and reliable quality evaluation data for construction units, to comprehensively improve the construction level and quality of waterproof materials.
Acknowledgements This research was supported by The Special Fund Project for the Scientific Research of the Quality Control (2012104011-4), Project of Science Research by ShenYang (F12-271-4-00, F12-216-8-00).
References [1] Zhou Q,“Bridge deck flexible waterproof material performance indicators and testing technology research”, Chang'an University, 2013, pp.36-49.in china [2] S.Aslanlar, “The effect of nucleus size on mechanical properties in electrical resistance spot welding of sheets”, Materials and design. 2006, 27, pp.125-131
[7] Zhang Z.J,, Zhou Q.H., Wang B.G., “Bridge deck waterproof layer 90° peeling detector development and experiment”, Chang'an University Journal, 2004,5 ​​(24), PP.35- 39. in china [8] Luo S.S, “Research on peeling strength test data analysis theory ”, Beijing Textile, 2005,26 (2), pp.39 – 40. in china [9] Zhang G.Q, Wang Z.C., “Research on bridge deck waterproof layer 90° peeling detector development and experiment”, Heilongjiang Communication Science and Technology, 2006,11, pp.96 ~ 101.

Despite the excellent performance of synthetic fibres such as high strength and stiffness [3] as well as good chemical resistance [4], issues on production cost and disposal of after used products of non-biodegradable materials are crucial.
Experimental Materials.
Rawlings, Composite Materials: Engineering and science, CRC Press, 2006
Wetwet, Mechanical properties of composite material reinforcing by natural-synthetic fibers, Academic Research International, Part I: Natural and Applied Sciences. 3 (2012) 108-112
Beckwith., Resin Infusion Technology: Part 1, 2-3, SAMPE Journal. 43 (2007) 3-4

Information showed that this process refined austenite grains and improved the service performance of materials.
Journal of University of South China (Science and Technology) , 2017, 31(3): 51-54
Materials Science and Engineering, 2003, A343: 235-242
Materials and Design, 2006, 27(10): 911-919
Transactions of materials and heat treatment, 2015, 36(8): 221-228.

State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China; 2.
Materials and methods 2.1 Materials A standard 70/100 pen bitumen was provided by dr.
In the DSR test, the bituminous materials were subjected to a sinusoidal loading of constant strain at different loading frequencies (frequency sweep).
Table 3 provides the testing conditions of bitumen and mastic materials in the DSR.
Handbook of Clay Science.

Primary concrete protection requires the development of new effective polymer waterproofing materials.
This modified concrete is one of the most popular materials in the construction industry.
This modified concrete is one of the most popular materials in the construction industry.
Wu, Water seepage flow in concrete, Construction and building materials, 35 (2012) 491-496
Bazanov, Evaluation of corrosion resistance of concrete in the formation and growth of crystals of ettringite thaumasite system, Building Materials - Science, 2003

In addition, the rolling speed, rolled frequency and other parameters also have important influence on compaction effects,in the certain distance, improve rolling speed will reduce the time of vibration in unit distance, to get the same rolling effect need to increase the frequency of rolling. 2 Influence of vibration on the shear strength of the material 2.1 Natural vibration and resonance phenomena of the materials One of the inherent characteristics of Materials - mechanical system is natural vibration,it depends on the mechanical, materials , their mutual contact condition and the critical condition, etc.
Especially when the excitation frequency is close to the natural frequency of materials, the machine and material resonance occurs with larger amplitude like a spring.
Though the above analysis: for mixtures of different particle size of materials such as gravel or ballast, consisting of a mixture can obviously reduce the sliding friction and vibration interlocking friction, especially when resonance occurs with material, can greatly reduce the shear strength of materials and improve the crushing effect. 3 Research on Graded crushed aggregate compaction characteristics 3.1 Test equipment and test material (1) Test equipment In order to study the compaction effect of different compaction equipment on graded gravel materials in the compaction test, the heavy compaction meter and surface vibration compactor were used.
(2) Test Material The physical properties and graded composition of materials testing shown in Table 1 and Table 2.
[3]You Ji-zhong,Yan Chao,etc.Research on Compaction Characterisics of Graduated Fragment[J].journal of wuhan university of technology.2007,9(29):130-133