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In general, the cemented carbide materials such as YG8, YG6 and YT5, YW2 are not easy to crack, and the cemented carbide materials such as YT14, YT15 YN10 are easier to crack; While YG3, YG3X and YT30 are particularly prone to crack.
Journal of Tool Technology, 2002, 2
Journal of Machine Tools and Hydraulic, 2003, 2
Journal of Coal Mine Machinery, 2005, 12
Evaluation of machinability by cutting environments in high-speed milling of difficult-to-cut materials.

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

It not only provides a wide range of food, raw materials and water resources, but also plays an important role in maintaining ecological balance and biodiversity, water conservation, waterforuseinadrought, degradation of pollution, regulating climate, supplementary groundwater, prevent erosion and so on.
(Source material: Final Feasibility Report and PEIS 1999 [5]) Natural Measures.
NATO Science for Peace and Security.
Journal of Economics of Water Resources，Vol. 25(2007).
Journal of Hunan University (Natural Sciences), Vol. 1(2005).

POM as energy storage material is feasible.
The process of POM as energy storage material is feasible.
Lehn: Science Vol. 260(1993), p. 1762 [3] K.
Li: Journal of Northeast Normal University (Natural Science Edition) Vol. 36(2004), p. 57 [7] S.X.
Shannon: Journal of Molecular Catalysis A: Chemical Vol. 262(2007), p. 18

Directional solidification and single crystal technology is an important field in material science.
Leverant[2] tested on 3 materials: PWA1455, PWA1422 and PWA647.
American Society for Testing and Materials, (1973), p. 166-178 [3]A.
Radavich, eds., TMS-AIME, Warrendale, OH, p. 185–197. 1984, [8]DING Zhi-ping; CHEN Ji-ping; YIN Ze-yong; YANG Zhi-guo:Low-Cycle Fatigue Life Prediction of Single Crystal Nickel-Based Superalloys under Asymmetrical Cyclic Loading.Journal of Aeronautical Materials.
Journal of Aerospace Power.

They are certain materials either natural or unnatural by biological methods.
The material properties of DNA complex layer or thin films can be catalogued in a similar way as those of others materials used in optical devices.
Raja, Recent Advanced in Conjugated Polymers for Light Emitting Devices, International Journal of Molecular Sciences, 12 (2011) 2036-2054
Jin, Materials science of DNA, Journal of Materials Chemistry, 19 (2009) 1353
J., DNA – A New Material for Photonics, Nature Photonics, 1 (2007) 3-5

The LiCrxMn2-xO4 material used for lithium ion battery cathode material was successfully prepared by a molten-salt flameless combustion synthesis method which used the LiNO3, LiAc·2H2O, Mn(NO3)2, MnAc2·4H2O as raw materials and Cr(NO3)3·9H2O as dopant.
The method which uses the nitrate and acetate of lithium and manganese as raw materials, among the raw materials, using nitrate as the oxidant and acetate salt of reductant, resulting in just redox reaction by changing the molar ratio (NO3-/Ac-) and the heating temperature.
The study indicates that, the electrochemical performance of cathode materials is optimal when the amount of Cr equal to 0.02.
Wu: Chinese Journal of Power Sources Vol. 27 (2003), p.366 (In Chinese) [4] A.D.
Zhang: Materials Review Vol.

Introduction Sewage diffusions is a new material which is used to marine environmental protection.
Research of environmental Sciences. 1994,7（5）：49-52
Hydraulic journal.1993,6
Marine environmental Science. 2000,19（4）：41-45
Advances in water sciences. 1995,6（3）：176-181

Doped TiO2 nanotube for lithium ion battery Xiaoxiao Hu1,a, Jianxiong Liu1,b*, Zhengyu Wu2,b, Xinrui Zheng1,c, Miao Ma1,d, 1Faculty of Materials Science and Engineering, 2Faculty of science Kunming University of Science and Technology, Kunming 650093, China ahbyshxx@163.com, bljx5192665@163.com, bWUZY501@163.com, czxr6684119@126.com, dmamiaokunming@163.com Keywords: TiO2 nanotube, lithium ion battery, dope Abstract.
Recently, studies exploring new electrode materials for LIBs have focused on reducing the size of materials to nanoscale.
However, TiO2 is a kind of semiconductor materials and it has a wide band gap (Anatase: 3.2eV, Rutile: 3.0eV), resulting in poor electrical conductivity.
However, the initial discharge capacity of all the coated materials suffered some loss in contrast to the uncoated TNTs.
Kim: Materials Chemistry and Physics 137 (2012) 169e176 [13] S.J.

To solve the defects of rigid material, it used material of flexible ecological slope protection - pyramid heap overlay muscle strengthening ecological retaining wall (see figure 3) instead of hard materials such as steel, cement, stone, building permanent and natural ecological slope stability and green vegetation, and all in harmony[4].
Journal of urban water conservancy, 2004 (14): 53 ~ 55.
Science and technology, 2007, 23 (1).
Journal of Environmental Management, 2004, 30 (4): 468 ~ 480
Journal of water resources in Beijing, 2002 (1): 11 ~ 12 .