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Experimental materials We use the cement as the cementing agent to make the cement cores.The main material is quartz sand then bring the mixture of the dry cement and quartz sand according to a certain proportion into the tailor-made sand filling tube and plug the both ends with the screen and ring.
Normal cement We use the normal cement as the cementing agent to make the artificial cores.The cement type is 32.5R.The particle diameter is approximate 30-60μm.The artificial cores consist of silicate cement grogs,6%-15% mixed material and an appropriate amount of gypsums.The property of this artificial cores include:being a paste after agitating with water,it can be stiffened in the air or in the water and it also cemented the sand and stone and so on together.It is a kind of hydraulic cementtitious materials.
Journal of Daqing Petroleum Institute,2006,30(4):88-90
Science technology and Engineering,2010,10(28):6998-7000

Fabrication and Characterization of Transparent P-Type Zno Films Obtained by in Situ Oxidation of Sputtering Zn3N2 :Al Jun Zhang1,2,a, Lexi Shao1,2,b, Wei Xie1,2,c and Changwei Zou1,2 1 Department of physics, Zhanjiang normal university, Zhanjiang 524048, China 2 Development Center for New Materials Engineering and Technology in Univesities of Guangdong, Research Center of Chemistry and Materials, Zhanjiang normal university, Zhanjiang 524048, China abuzman@tom.com, bshaolxmail@163.com, ccarlxw@163.com Keywords: p-Type ZnO Film; Zn3N2 :Al; RF Magnetron Sputtering; Photoluminescence.
Acknowledgements This work is supported by the Natural Science Foundation of Guangdong Province, China (No. 8452404801021) and the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University (LZUMMM 2010009).
[5] Zhi-Zhen Ye, Jian-Guo Lu, Han-Hong Chen, Yin-Zhu Zhang, Journal of Crystal Growth 253 Vol. (2003)p.258

In order to improve the machining efficiency of broach ,machining precision ,tool stability and durability, it should improve the structure of broach, select new materials of tool and new surface treatment craft.
Through the application of CAD technology, optimize design and craft, make material utilization, processing route of craft is reasonable, reduce production cost, improve product quality, economize materials.
Original templates: module,number of teeth,pressure angle ,Diameter of reference circle , major diameter of internal spline , minordiameter of internal spline .spacewidth of graduated circle (6H), aperture after broaching ,Length of broaching ,material 45#, broaching machine L6120, maximumpull 2000N, maximum stroke 1600 mm.
[4] Fang, N., Jawahir, I.S. and Oxley, P.L.B. 2001, A universal slip-line model with non-unique solutions for machining with curled chip formation and a restricted contact tool, International Journal of Mechanical Sciences, 43: 557-580

The insulated Cu wire terminals (usually Cu or Cu alloy, Ni, Kovar, etc.) of many electronic devices and components are frequently plated with materials (such as Au, Ag, Ni or tin) to improve corrosion resistance or to obtain a unique combination of mechanical, thermal, and electrical characteristics [1,5,7].
However, these plating materials may dramatically influence joining processes and hence joint quality, compared to the joining of the same substrates without plating.
Acknowledgements This research was supported by the National Natural Sciences Foundation of China (NSFC).
Riches: TWI Journal Vol. 3 (1994), p. 155 [5] W.
Massalski: Binary Alloy Phase Diagrams (ASM International, Materials Park, OH 1990)

Composite sandwich structure usually consists of panels, the panel and core material of the adhesive layers, core materials.
The core materials can be cellular, light wood and rigid foam.
Panels are usually glass cloth, plywood, fiberboard, aluminum alloy plate and steel plate considering the material stiffness and strength [1, 5-7].
References [1] Zenkert D, Bull P, Shipsha A, Hayman B.: Composites Science and Technology Vol. 65 (2005),p.2597
:Chinese Journal of Mechanical Engineering Vol.35(1999), p.65 [9] Tamas Varady, Ralph Martin, Jordan Cox.

Study of Rust Layer of TRIP Steels in Marine Environments LI Zhuang1,a*, Lv Wei 2,b 1School of Materials Science and Engineering, Shenyang Aerospace University, Shenyang 110136, Liaoning, China 2Land and resources department, Shenyang Aerospace University, Shenyang 110136, Liaoning, China aLizhuang20047@163.com, blw4488@sina.com Keywords: TRIP steels; salt spray tests; corrosion; rust layer; alloying elements Abstract: The rust layer plays an important role in the corrosion of TRIP steels in marine environments.
Materials Characterization, 127 (2017) 104-110
Journal of The Electrochemical Society 162 (9) (2015) 495-502
Materials 10(406)(2017) 1-67

An Innovative Approach of Drilling Process Monitoring for Slope Characterization in Mountainous Regions Chen Jian1,a , Yue Zhongqi2,b and Liu Sijing3,c 1Beijing Research Centre for Engineering Structures and New Materials, Beijing University of Civil Engineering and Architecture, China 2Department of Civil Engineering, the University of Hong Kong, Hong Kong, China 3Department of Technology, China Harbour Engineering Company Ltd, Beijing, China a jchen@chec.bj.cn, b yueqzq@hkucc.hku.hk, c sjliu@chec.bj.cn Keywords: DPM, Slope characterization, Mountainous region Abstract.
This cannot indicate joint aperture or soft infilling materials which are areas of primary interest in ground investigations.
Acknowledgements The work reported in this paper is funded by Open Research Fund Program of Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijing University of Civil Engineering and Architecture).
Automatic monitoring of rotary-percussive drilling for ground characterization – illustrated by a case example in Hong Kong, International Journal of Rock Mechanics & Mining Science, Vol.41, 573-612

In the shaving process, removing material from work gear surface causes hardening on work gear surface.
It is due to unwanted friction and material flow by the action of top land of serration.
In other word, most of material can be removed in first few cutting cycles.
It means that most of material will be removed after first and second cutting cycle.
Fong, Serration Design for a Gear Plunge Shaving Cutter, Journal of Manufacturing Science and Engineering, Vol. 133, 2011, pp.021004-1-021004-11

The Design Photovoltaic System The photovoltaic system is usually a synthesis combining light, mechanics, electricity, computer science and materials.
At this stage, the researchers propose the background materials of a particular area for managers to develop long-term planning.
These materials include an extensive report of survey of the entire area, the development status and technology tracking in this field, forecast of trends and requirement of society.
Systems Journal,6(2): 213-219(2012) [7] Rodriguez, C.

This organic carbonized material serves as food for plants, crops and carps, without the risk of biological contamination, since the electrophoresis eliminated the bacteria.
Afterwards, it was redirected for the septic pit, using activated sludge with anaerobic bacteria to deal with organic material.
The use of industrial NaCl is very common on the region, which would avoid the importation of raw materials.
Beagles, Electrocoagulation (EC)- Science and Applications, Greenpages, USA, [Online].
[4] NOM-127-SSA1-1994, Environment Health, Water for Using and Human Consumption, Quality Allowed Limits and Consumption Water Treatment, Official Journal of Government, Mexico, January 18, (1996)