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Laser machining can be a promising tool in machining difficult-to-machine materials compared with conventional techniques.
From Fig.4, one can see that varied burr shape on the kerf will be formed by different assisted gas pressure and materials, because the large pressure will cause bigger press, which will take away more molten-slag from the action area of laser and material.
Material Science and Technology Vol.
Phulé: The Science and Engineering of Materials. 4th Ed (Tsinghua University Press, Beijing, 2005)
Journal of Materials Processing Technology Vol. 102(2000),p.40

The dried raw materials were then, separately, crushed and sieved to 20 mesh powders.
(In Spanish) [3] American Society For Testing And Materials – ASTM.
[4] American Society For Testing And Materials – ASTM.
Flexural Properties of Ceramic Whiteware Materials, C 674-77, USA, (1977)
Monteiro: Materials Science and Engineering A.

Solonin, etc.: Materials Science and Engineering.
Vol.30 (2) (2010), p.154 [3] Y.K.Gao: Materials Science and Engineering A.
Vol. 528 (2011), p.3823 [4] Shahzad, Majid, Chaussumier, Michel, etc.: Materials and Design.
Li and B.Wu: Materials Science and Engineering A.
Vol. 45 (2010), p.111 [9] Ida Westermann, Odd Sture Hopperstad, etc.: Journal of Materials Science.

Effect of hydrogen induced additional stress on the influence on high-strength steels Li Huilu1,a, Shao Kangchen1,b, Yang Qinghao1,c, Feng Jianing1,d 1College of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an, 710054, China aE-mail: huiluli@sina.com.cn, bE-mail: skc12345@163.com, cE-mail: 38728598@qq.com, dE-mail: 736148685@qq.com Keywords: hydrogen concentration; high–strength steel; hydrogen–induced additive stress Abstract: The flowing stress of a high–strength steel before unloading is different with the yield stress of the same sample extended in air after unloading and charging with hydrogen.
Beijing: Science Press, 2000.122-124 [2] LU Hong, LI Mi-dang, ZHANG Tong-yi, et al.
Chinese Journal of materials research, 2007,21.(06):600-604 [7] Caifu Qian, CHU Wu-yang, Qiao Li-jie.
Journal of University of Science and Technology Beijing(English Edition), 2002,9.(05) :372-377 [8] LI Hui lu, GAO Ke-wei, CHU Wu-yang, LIU Ya-ping, QIAO Li jie.
Sci in China, 1986, 29.(11); 1157-1161 [12] Li Jin-xue, Chen Hao, Wang Yan-bin, Qiao Li jie, Chu Wu yang, Science in China (Series E: Technological Sciences), 2001, 44.(06):581-587 .

Besides, localization should reflect constructional tradition and spatial characteristics of the place, which include localized building materials, building forms and spatial structural characteristics.
Pan: Zhejiang Social Science (In Chinese) Vol.6 (1994), p. 73-76
Myers: Journal of the American Planning Association Vol.54 (1988), p. 347-358
Wang: Geographical Science Progress (In Chinese) Vol.5 (2002)
Wang: Journal of Geographical Science (In Chinese) (Extra Edition) (2004), p. 125-131

Research on Polyvinylidene Fluoride Hollow Fiber Hemodialyzers Guo Jianhui, Zhang Juan, Lv Xiaolong State Key Laboratory of Hollow Fiber Membrane Materials and Processes (Tianjin Polytechnic University) Tianjin, China Corresponding author.
Abstract.Hemodialysis is the main treatment of acute and chronic renal failure, and the selection of hemodialysis membrane materials is the key factor that determines the curative possibilities.
Up till now, the membrane materials adopted by high-flux hemodialysis are mainly polysulfone (PSF) and polyether sulfone (PES).
The New England Journal of Medicine, 2002, 347(25): 2010-2019
Journal of Biomedical Engineering, 2010, 27(1): 91-96.

The desired amount of starting materials corresponding to the nominal formula Na(1+x)MgxAl(11-x)O17 were mixed and calcined at temperature 1200 oC for 10 h under atmospheric pressure.
These parameters are depended on starting materials and processing technique.
Particle size all of used starting materials were less than 63 µm.
The results of crystallite size with the different starting materials are shown in Table 1.
Dustmann, Journal of Power Sources, 127 (2004), p. 85-92

Then carbon deposited materials were collected for field emission scanning electron microscopy (FESEM), Raman and infrared (IR) spectroscopy characterization.
Robertson, Realistic Applications of Cnts, Materials today 7(10) (2004) 46-52
Iijima, Materials Science: The Smallest Carbon Nanotube, Nature 408 (2000) 50
Coville, Physical Properties of Cvd Boron-Doped Multiwalled Carbon Nanotubes, Materials Chemistry and Physics 111 (2008) 386-390
Umeno, Carbon Nanotubes by Spray Pyrolysis of Turpentine Oil at Different Temperatures and Their Studies, Microporous and Mesoporous Materials 96 (2006) 184-190

Wang, A Comparison Study of Surface Hardening by Grinding Versus Machining, Key Engineering Materials, 304-305 (2006) 156-160
Journal of Machine Tools & Manufacture, 39 (1999) 1863-1881
Davim, Machining of Hard Materials – London: Springer-Verlag London Limited, (2011) [22] T.
Wierzchon, Surface Engineering of Metals: Principles, Equipment, Technologies, Materials Science & Technology) CRC Press 1998
Manna, Laser-Assisted Fabrication of Materials, Springer Series in Materials Science, Springer-Verlag Berlin Heidelberg, (2013)

Cryogenic treatment (DCT) can significantly improve metallic structural materials’ mechanical properties such as friction and wear performance.
A lot of research results show that through cryogenic treatment,the microstructure of materials can be densified,micronized and homogenized [4,5].
[6]Harisha S and Bensely A: Journal of materials processing technology, Vol.209 (2009): p.3351
[7]Bensely A,Venkatesh S and Mohan Lal D: Materials Science and Engineering: A , Vol.479 (2008): p.229
[13]Ya Deng and Chaoyin Nie: Transactions of Materials and Heat Treatment, Vol.33 (2012) No.9, p.106.