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Introduction Nano-machining of brittle materials is possible, using the ductile mode in which material is removed by plastic extrusion.
To study the behaviour of the brittle-to-ductile transition of brittle materials, indentation was commonly used in machining field [1-6].
Nano indentation is an important technique for studying the mechanical behaviour of materials at nanometric scale.
It has been an important topic that cracks occurred on brittle materials' surfaces can be predicted [7-9].
Porto: Journal of Materials Science Letters Vol. 18 (1999), p. 1185

(2) The constitutive relation of metal materials can not be gotten at high speed processing, so the constitutive relation at low speed processing is used in this model
Acknowledgement This research is supported by national nature science foundation of China (NSFC) project (No: 50975229) and science & technology project of Shaanxi province, China (No: 2009JQ7003）.
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Experimental materials.
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Lix: Journal of Materials Process Technology Vol. 209 (7) (2009), p. 3149 [7] E.S.
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This material contains a lot of valuable components such as REE and niobium (mas., %: 12,8 ΣREO (rare earth oxides), 0.039 Sc, 18.4 P2O5, 9.9 Fe, 9.0 Al, 0.24 ThO2, 8.2 Nb2O5).
These products are raw materials to extract target components.
It is necessary to find a more effective acid decomposition process of this raw material.
African Journal of Science, Technology, Innovation and Development, 6 (2017) 1-8
RUDN Journal of Engineering Researches, 19 (2018) 92-101

Jubber: submitted to Journal of Diamond and Related Materials (1995) [2] M.Y.
Zhou, et al: submitted to Journal of Crystal Growth (2002) [3] S.Odake, H.Ohfuji and T.Okuchi: submitted to Journal of Diamond and Related Materials (2008) [4] T.
Asmussen, et al: submitted to Journal of Materials Research Society Symposium Proceedings of Materials Research Society (2000) [6] M.V.
Mercelis: submitted to Journal of Heat and Mass Transfer (2007) [7] N.Nedialkov, M.Sawczak and R.Jendrzejewski: submitted to Journal of Applied Surface Science (2007) [8] J.K.
Chim: submitted to Journal of Materials Chemistry and Physics (1998) [10] F.

Thus, the raw materials, i.e. αFe2O3, Mn3O4, and ZnO, in a molar ratio 53:28:19 were mixed in suitable proportions in a steel ball-mill using demineralized water.
Thus, the raw materials aFe2O3, Mn3O4, and ZnO were wet milled, dried and pre-sintered at 800 0C for 1h in air.
Ochiai, Le Journal de Physique IV, Vol.07, No.21, 1997, p.
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And the method is only used to detect magnetic materials.
Experiment Experimental Materials The materials of specimens are 2024 aluminum alloy with yield strength of 265 MPa and hardness of 37.8 HRB.
Materials and Design, 2013, 50: 905-916
Applied Mechanics and Materials,2014, 156:156-162
Properties of GH4169 Superalloy Characterized by Nonlinear Ultrasonic Waves[J], Advances in Materials Science and Engineering, 2015, 457384:1-9

Such light-emitting sputtered films can be useful as high-index materials of photonic crystals that can be applied to novel active devices.
Such sputtered Ta2O5:Er films can be used as high-refractive-index materials for multilayered [10, 11] or air-hole [12] photonic crystals.
Kojima: Journal of Materials Research Vol. 19 (2004) p. 667
Hanaizumi: Key Engineering Materials Vol. 459 (2011) p. 32
Hsieh: Journal of Vacuum Science and Technology A Vol. 23 (2005) p. 768.

There were some adhering materials on the tool surface close to the cutting edge.
Acknowledgements This project is supported by the National Natural Science Foundation of China (51575029).
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Abdullah, Tool wear characteristics in turning of titanium alloy Ti-6246, Journal of Materials Processing Technology. 92 (1999) 329-334