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The Nyodimium-Iron-Boron (Nd-Fe-B) based materials are known as the best type of magnetic materials and it contains a magnetic phase Nd2Fe14B.
Faria, The influence of process parameters and alloy structure on the magnetic properties of NdDyFeBNb HD sintered magnets, Journal of materials Processing Technology 152 (2004) 1–8
Olson, Hydrogen-assisted processing of materials, Materials Science and Engineering A289 (2000) 41–53
[9] David Brown, Bao-Min Ma, and Zhongmin Chen, Developments in the processing and properties of NdFeb-type permanent magnets, Journal of Magnetism and Magnetic Materials 248 (2002) 432–440
Advanced Materials.

Introduction The highway engineering construction need to cost a lot of raw materials, the materials is various, the largest proportion is the granular and powdered materials, such as sand, cement, etc.
German Simon company developed the technology of carbonization burning garbage disposal, which could separate renewable materials very cleanly, the broken old building materials mainly use in road subgrade, artificial landscapes and planting[9].
References [1] Gaofeng Wang, Yue Zhang:YinShan Academic Journal Vol.25(2)( 2011),p.106-109
[5] Shuhui Zhang, Xiangxin Xue , Zaifeng Jin: Journal of Materials and Metallurgy Vol.3（4) 2004,p.241-245
[8] Ning Lu:Journal of Changpan University( Social Science Edition) Vol.10（3）(2008),p.79-82

Cotton fabrics are ideal substrate for preparing flexible functional materials due to low cost of production and easy to process[1].
Experiments Materials The plain cotton fabrics were cleaned by 1 % (w/w) of sodium carbonate (Na2CO3) at 80 ºC for 1 h, washed by distilled water and dried.
Journal of Applied Polymer Science, 2016, 133(32): [2] NARAYANAN S C, KARPAGAM K R, BHATTACHARYYA A.
Materials Science and Engineering B-Advanced Functional Solid-State Materials, 2014, 187: 96-101
Journal of Applied Polymer Science, 2014, 131(2): [9] XU J, WANG D, YUAN Y, et al.

Experiment condition and materials The main instruments are followed as: the lapping machine of Nanopoli-100 which has the cross slot iron grinding pan of Φ380 mm, the contact roughness tester of Mahr S2 made in Germany, the balance with 0.1mg produced by Shimazu.
References [1] Grzegory I.: High nitrogen pressure growth of GaN crystals and their applications for epitaxy of GaN based structures, Journal of Materials Science and Engineering, (2001), pp.30-34
[3] C.G.Liang,Y.Zhang: The Dawning of The Third Generation Semiconductor-GaN, Journal of Semiconductor, Vol.2 (2000), pp.89-99
[4] Chol K.S., John S.T.: Optimum machining of optical crystals,Journal of Mechanical Engineering, Vol.4 (2003), pp.68-72
Journal of Surface Science, (2000), pp.118-130.

The quality of the crankshaft is closely related with material, manufacture, heat treatment and so on.
The key manufacture of crankshaft development 2.1 Material selection and roughcast manufacture The crankshaft of a large discharge and high pressure emulsification pump mainly bears low rotational speed and high load, periodic alternating impact when working, so high quality alloy steel should be considered first when selecting material: The frequently used material mark is 42CrMoA.
Material melting chemistry element must be in compliance with table 1: Table 1 Material melting chemistry element C Si Mn P S Cr Ni Mo V Cu 0.39 ~0.45 0.17 ~0.37 0.60 ~0.80 ≤ 0.025 ≤ 0.025 0.90 ~1.20 ≤ 0.30 0.15 ~0.25 0.07 ~0.12 ≤ 0.20 The smelting method should be furnace smelting + refining + vacuum degassing or slag re-smelting.
The following are the key measures: 1)how to guarantee the consistency of equal angle and eccentricity Both the roughing and semi-finishing of the crankshaft's shaft journal and five crankshaft journal were manufactured by cutting on a horizontal lathe.
[5] X.Y.Ye and X.P.Jiang: Chinese Journal of Mechanical Engineering ,Vol.44(2008), p.272 [6] Y.D.Zhou and P.Liao: Machine Design and Manufacturing Engineering，Vol .29(2000), p.65

It can be concluded that the supplied heat input of1250°C is not high enough to provide sufficient diffusion and flow of materials within the joint interface.
Welding Journal, (2002) 181-187
Alhawari, Investigations on Thixojoining Process of Steel Components, Journal of Mechanical Engineering and Sciences, 5 (2013) 639-645
Alhawari, Study on thixojoining process using partial remelting method, Advanced in Materials Science and Engineering. 2013(2013) 1-8
Atkinson, Microstructural investigations of XW-42 and M2 tool steels in semi-solid zones via direct partial remelting route, Journal of Materials Science. 46 (2011) 7696-7705

The experimental material is source-separated municipal solid waste.
As can be seen from the Fig.2, pyrolysis rate gradually increases with temperature rising from 450°C to 850°C, which means pyrolysis rate curves of different materials have the same variation tendency.
Journal of Institute of Energy. 65: 192-200
University of Science and Technology of Suzhou (Engineering and Technology). 16(1):16-21.
Journal of Kunming University of Science and Technology (Science and Technology). 33(5):86-89.

Introduction A series of conductive polymer materials have been developed, since MacDiarmid and Shirakawa made conductive polyacetylene by iodine-doped [1].
In this study, we chose aniline, o-Phenylenediamine and cotton plain weave fabric as the primary materials.
Experimental Experimental Materials White plain weave fabric of cotton (120g·m-2) with the count of 19.4 Tex, both the warp and weft of the cloth density are 268 per 10cm.
Journal of the Chemical Society: Chemical Communications, 1977, p. 578
Narayanankuutty： European Polymer Journal, (44)2008, p. 2418

These findings demonstrate the viability of using a sustainable material such as cork to mitigate the environmental impact of 3D-printed lightweight nylon composite materials.
Engineering Science and Technology, an International Journal 2016, 19 (2), 717-736
International Journal of Polymer Science 2015, 2015, 243947
Journal of Composite Materials 2020, 54 (5), 669-680
ACS Applied Nano Materials 2020, 3(3), 2288-2301

The material was sublimed and deposited at the colder part of the ampoule.
[2] Dong Dong, Xiao-Bo Liu, Jiang-Bo Li, Cheng-Wei Shang, and Wen-Cheng Hu , Journal of Electronic Science and Technology, 8(2010)
Esen, Journal of Crystal Growth 258 (2003) 141–148
Rowlen, Applied surface science,182(2001)p.40-48
Rusu, Journal of Optoelectronics and Advanced Materials ,8(2006) p. 936 – 940.