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Materials and Experimental Methods Raw materials as powders with average particle size 40 microns (>95% purity) were purchased from SRL Powders Mumbai, India.
Journal of Materials Research  33, 3092–3128 (2018). https://doi.org/10.1557/jmr.2018.153
[6] Shiyu Wu, Dongxu Qiao, Haitao Zhang, Junwei Miao, Hongliang Zhao, Jun Wang, Yiping Lu, Tongmin Wang, Tingju Li, Microstructure and mechanical properties of CxHf0.25NbTaW0.5 refractory high-entropy alloys at room and high temperatures, Journal of Materials Science & Technology.
[8] Long Xu, Hui Chen, Yuefei Jia, Dongpeng Wang, Shiwei Wu, Yandong Jia, Gang Wang, Zixu Guo, Yilun Xu, Revealing effects of creep damage on high-temperature fatigue behavior for HfNbTiZr refractory high-entropy alloys: Experimental investigation and crystal-plasticity modelling, Journal of Materials Science & Technology.
Emerging Materials Research.

Experimental Materials.
Xia, Chemistry of Materials, Vol. 20(2008), p. 5090–5099
[7] Z.Liu andY.Bando, Advanced Materials, Vol. 15(2003), p. 303–305
[11] S.H.Wu andD.H.Chen, Journal of Colloid and Interface Science, Vol., 273(2004), p. 165–169
[16] M.Salavati-Niasari andF.Davar, Materials Letters, Vol. 63(2009), p. 441–443

Journal of Hazardous Materials 149, 475-481
Journal of Hazardous Materials 164, 1586–1594
Journal of Hazardous Materials 144, 240-248
Journal of hazardous materials, 84(1), 29-41
Journal of Hazardous materials, 154(1-3), 778-786.

Materials and Methods Raw Materials.
The chemical compositions of raw materials and solutions were analyzed by ICP-OES technique (PerkinElmer® Optima™ 8000).
Gupta: Treatment of spent pickling liquor, International Journal of Advance Research in Science Engineering, Vol. 5, No. 3, pp. 259-263, 2016
Sahu: An overview of the recovery of acid from spent acidic solutions from steel and electroplating industries, Journal of Hazardous Materials, Vol. 171, pp. 61-75, 2009
Fu: Recovery of hydrochloric acid from the waste acid solution by diffusion dialysis” Journal of Hazardous Materials, Vol. 165, No. 1, pp. 832–837, 2009

, Materials and Manufacturing Processes 19(6) (2004) 979–993
Chunzheng, On adiabatic shear localized fracture during serrated chip evolution in high speed machining of hardened AISI 1045 steel, International Journal of Mechanical Sciences 75 (2013) 288–298
Bäker, Finite element simulation of high-speed cutting forces, Journal of Materials Processing Technology 176 (2006) 117-126
Jackson, A review of micro and nanomachining from a materials perspective, Journal of Materials Processing Technology 167 (2005) 316-337
Jaspers, J.H Dautzenberg, Material Behaviour in Conditions Similar to Metal Cutting: Flow Stress in the Primary Shear Zone, Journal of Material Processing Technology 122 (2002) 322-330

Ganguly, "Characterization of a ferrofluid-based thermomagnetic pump for microfluidic applications", Journal of Magnetism and Magnetic Materials 323 (2011), 2701-2709
Mohseni, "Two-phase mixture model simulation of the hydro-thermal behavior of an electrical conductive ferrofluid in the presence of magnetic fields", Journal of Magnetism and Magnetic Materials 324 (2012), 830-842
Ashjaee, "Heat transfer characteristics of Fe3O4 ferrofluid flowing in a mini channel under constant and alternating magnetic fields", Journal of Magnetism and Magnetic Materials 381 (2015), 158-167
Badfar, "Ferro hydro dynamic analysis of heat transfer and biomagnetic fluid flow in channel under the effect of two inclined permanent magnets", Journal of Magnetism and Magnetic Materials 472 (2019), 115-122
Kassem, "Analysis of homogeneous steady state nanofluid surrounding cylindrical solid pipes", Egyptian Journal for Engineering Sciences and Technology 31 (2020), 71-82

Introduction Nowadays there are materials created, about that we could not even imagine previously: flexible ceramics, aerogels, metal foams and composite materials.
High percent of carbon and chrome presence in used coating materials give a risk of cracking, especially if the material cools down too quickly.
Klimova, High-Speed Direct Laser Deposition: Technology, Equipment and Materials, Equipment and Materials, 125(1) (2016) 501-509
Paul, Development of micro-plasma transferred arc (µ-PTA) wire deposition process for additive layer manufacturing applications, Journal of Materials Processing Technology, 214 (2014) 1102–1110
Er, Microstructure and wear behaviour of plasma transferred arc (PTA)-deposited FeCrC composite coatings on AISI 5115 steel, Journal of Materials Processing Technology, 236 (2016) 26-34

Crystal Structure of Al2Cu3Nd Ternary Compound Degui Li1, a, Liuqing Liang1, b, Ming Qin1, c, Lei Hu1, d, Changsheng Qin1, e, Shuhui Liu1, f, Bing He1, g*, Chenzhong Jia1, h and Lingmin Zeng2, i 1School of Materials Science and Engineering, Baise University, Baise 533000 China 2School of Materials Science and Engineering, Guangxi University, Nanning 530004 China alidegui354@163.com, b114560196@qq.com, cqm6327@sohu.com, d894879712@qq.com, e87629749@qq.com, fwert887@126.com, gbsxyhb@21cn.com, h407948297@qq.com, ilmzeng@gxu.edu.cn Keywords: Al2Cu3Nd, X-ray powder diffraction, Crystal Structure, Rietveld refinement.
It is the basis of the detection and analysis of the materials that the crystal structure of the new compounds had been researched.
The compositions of raw materials come from China new metal materials technology Co., Ltd. with 99.99 wt % Al, 99.99 wt % Cu and 99.9 wt % Nd.
The melting process has been carried out three times in order to fuse together from raw materials and distribute uniformly for the elemental component.
[10] JADE Version 6.5, XRD pattern processing, Materials Data Inc., 2002

Materials For the research it was used Fe powder produced by atomization, sorted ANCORSTEEL 1000B, 6086 code produced SC Ductil S.A.
Chemical composition of mixture / materials symbol Mixture/ materials symbol Complex constitution Chemical composition [%] Mn Mo Cr B Graphite (C) Fe HM [Fe-3Mn-1Mo-1.5Cr-0.45C] homogenous mixture 3 1 1.5 - 0.45 Bal.
Torralba, Effect of heat treatments on Cr-Mo steels based on astraloy Cr powder grade whit manganese auditions, Materials Science Forum 416-418, 1 (2003) 82-88
Ghambri, Effect of heat treatment, lubricant and sintering temperature on dry sliding wear behavior of medium alloyed chromium PM steels, Journal of Materials Processing Technology 204, (2008), 192-198
Ashtari, The role of heat treatment on wear behavior of powder metallurgy low alloy steels, Materials & Design, 23 (2002) 667-670

There are some disadvantages of chemical synthesis and microbial fermentation such as it is difficult to obtain materials, difficult to purify, easy to lead into contamination, etc.8-10 Extraction L-theanine from the tea is the most direct, effective and safe process.
Integrating Eqs. (5)-(7), the molar fractions of theanine in the feed, membrane and receiving phase will be expressed as: (8) (9) （10） Where is defined as: (11) (12) Experimental Materials L-theanine was purchased from Xiyashiji Company, in China.
Rajput: JOURNAL OF RARE EARTHS, 2010 28( 1), 1 [4] Ma M, He D S, Liao S H, et al: Analytica Chimica Acta, 2002, 456: 157 [5] I.
[10] GUO LY; LIU Y; JIA XJ, et al. : Journal of Tea Science, 2006, 26(1)：31
H, et al.: Journal of Tea Science, 2007, 27(2)：111 [13] Chen Y., Zhong JH., Tao WY.: AMINO ACIDS & BIOTIC RESOURCES. 1998, 2(10):34 [14] ZHU XL, CHEN B, LUO XB, et al.: Chinese Journal of Chromatography, 2003, 21(4): 400