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Research on Scandium Recovery and Extraction Process Guoyin Xu1,3,a, Dianwen Liu1,3,b*(Corresponding Author) , Purong Wang1,3,c ,Bingliang Xu2,3,d and Wenjuan Zhao1,3, e 1Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China 2Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China 3Engineering Research Center of the Ministry of Education for Highly Efficient Utilization of Predominant Mineral Resources in China’s Western Region, Kunming 650093, China aanyangxaf@sohu.com,bldwkmust@126.com,ckeshiwoni@163.com,dxblkmust@hotmail.com, e813442522@qq.com Keywords: materials containing scandium；recovery；extraction；scandium Abstract.
The present situation of research on rare element sc[J].Materials Review,2006,20（F05）:379-381
Chinese Journal of Rare Metals,1991,14(4):330-332
Chinese Journal of Analytical Chemistry, 2000,28(6):787-791
Journal of Chemical Technology and Biotechnology, 2011,86(10): 1237.  

Analysis and Optimization of Forming Quality of 3D Concrete Printing Materials Liu Shiping1,a, Ma Ziyan1,b*, Xia Wenjie1,c and Huang Yuanjing1,d 1School of Mechanical Science and Engineering, Huazhong University of Science and Technology, China aliushiping@hust.edu.cn, bM202070771@hust.edu.cn, c M202078368@hust.edu.cn, dM201970371@hust.edu.cn Keywords: 3D concrete printing; concrete material; forming quality Abstract. 3D concrete printing is a kind of construction method that takes concrete as processing material for extrusion forming.
Rapid Prototyping Journal (2018)
Materials and structures 45.8 (2012): 1221-1232
Huazhong University of Science and Technology, MA thesis
Journal of Materials Processing Technology 271 (2019): 261-270.

Dong, Corrosion properties of S-phase layers formed on medical grade austenitic stainless steel , Journal of Materials Science: Materials in Medicine, 23 (2012), 271 – 281; [10] J.O.M.
White, Electrochemical materials science: comprehensive treatise of electrochemistry, vol. 4.
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Lemons, Biomaterials Science: An Introduction to Materials in Medicine, Second Edition, ed.
An in vitro study, Materials Science and Engineering: C, 47(2015), 384-393; [27] A.S.

Based on the approach to an automatic generation of homogenous properties of layers in graded material and microstructural models of materials, the programs are written by MATLAB.
The contact stress distribution curve will become smooth far from singular points in perfect homogenous materials.
[5] Guler, M.A., Erdogan, F., 2007, The frictional sliding contact problems of rigid parabolic and cylindrical stamps on graded coatings, International Journal of Mechanical Sciences 49, 161–182
[6] Ke, L.L., Wang, Y.S., 2006, Two dimensional contact mechanics of functionally graded materials with arbitrary variations of material properties, International Journal of Solids and Structures 43, 5779–5798
[7] Ke, L.L., Wang, Y.S., 2007a, Two dimensional sliding frictional contact of functionally graded materials, European Journal of Mechanics A – Solids 26, 171–188

Knyazeva1,2,3,b 1National Research Tomsk State University, Tomsk, 634050, Russia 2National Research Tomsk Polytechnic University, Tomsk, 634050, Russia 3Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055, Russia akamilaaligo@gmail.com, banna-knyazeva@mail.ru Keywords: solid-phase synthesis, combustion, welding, dissimilar materials, phase transition.
Good bonding was achieved between the parent materials.
White, Combustion Joining of Refractory Materials, Int.
Science Technol. 17, 1 (2001) 197-180
Aligozhina, Heat Impulse Source Initialization of Chemical Reaction in a Split between Heterogeneous Materials, Russian physics journal. 56,12/2 (2013) 34-38.

Serekian, Plasma sprayed coatings of hydroxylapatite, Journal of Biomedical Materials Research. 21 (1987) 1375-1381
Lamanna, Influence of PCL on mechanical properties and bioactivity of ZrO2-based hybrid coatings synthesized by sol–gel dip coating technique, Materials Science and Engineering: C. 39 (2014) 344-351
Sanchez, Hybrid organic-inorganic materials: a land of multidisciplinarity, Journal of Materials Chemistry. 6 (1996) 511-525
Ambrosio, Release kinetics of ampicillin, characterization and bioactivity of TiO2/PCL hybrid materials synthesized by sol-gel processing, Journal of Biomedical Materials Research - Part A. 77 (2006) 340-350
Mustarelli, Novel sol-gel organic-inorganic hybrid materials for drug delivery, Journal of Applied Biomaterials and Biomechanics. 8 (2010) 42-51

Journal of Sustainable Cement-Based Materials, 5(1-2), 1-22
Open journal of composite materials, 2014
Journal of Materials Chemistry A, 3(24), 12580-12602
Journal of Materials Research and Technology, 20, 4148-4160
Journal of Materials Chemistry B, 3(32), 6547-6570

This torsional extrusion process could also be applied the materials having the property of brittleness.
Therefore, the study on Titanium machining is chosen to enrich the role of titanium alloys in the field of engineering science and materials. 1.
References: [1] Dinesh Damodaran, Rajiv Shivpuri, Prediction and control of part distortion during the hot extrusion of titanium alloys, Journal of Materials Processing Technology, 2004, Volume 150, Issues 1–2, Pages 70–75
[4] R.W Schutz, H.B Watkins, Recent developments in titanium alloy application in the energy industry, Materials Science and Engineering: A, 1998, Volume 243, Issues 1–2, Pages 305–315
Langdon, Influence of phase volume fractions on the processing of a Ti–6Al–4V alloy by high-pressure torsion, Journal of the Mechanical Behavior of Biomedical Materials, Materials Science and Engineering: A, 2013,Volume 559,Pages 861–867

Ramakrishnan: On The Ballistic Performance of The Metallic Materials, Bulletin of Material Science, Vol. 20, no. 1, (1997), p. 111-123
Srivathsa, N.Ramakrishnan: Ballistic Performance Maps for Thick Metallic Armour, Journal of Materials Processing Technology, Vol. 96, (1999), p. 81-91
Vijarayam, et al.: Fabrication of Fiber Reinforced Metal Matrix Composite by Squeeze Casting Technology, Journal of Materials Processing Technology, 178, (2006), p. 34-38
[12] Dieringa Hajo, Norbert Hort and Karl Ulrich Kainer: Magnesium Based MMCs Reinforced with C-Fibers, The Azo Journal of Materials Online, September 2005
Matthews, dan R.D Rawlijns, in: Composite Material: Engineering & Science.

This periodical edition includes peer-reviewed papers based on results of scientific research and engineering solutions in different areas of modern engineering science.
Keywords:
Materials Science, Materials, Mechanics, Civil Engineering, Electrical Engineering, Cumputer Science, Environmental Engineering