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Because the titanium dioxide owns the chemical stability, the thermal stability, wear resistance as well as the catalytic property, it can be widely applied to such domains as cosmetics, sensing materials, absorbent materials, coating and so on[2,3].
Siegel: Nanostructured Materials.
[8] Xiaojie Li, Tao Chen, Ruiyong Li, Zhanlei Wang and Yandong Qu: Rear Metal Materials and Engineering Vol.35(11, 2006 ), p.1788-1791, in Chinese
[12] Xiaojie Li, Tao Chen, Yueju Zhang and Yandong Qu: Journal of Functional Materials Vol.20 (2,2005), p.122-126, in Chinese
[13] Lian Gao: Photocatalytic Nano-Materials and Applications (Chemical Industry Press, Beijing, 2002), in Chinese

Diffusion is a characteristic behaviour of slow dry materials where drying of water vapour transfer rates inside the materials are controlled by diffusion towards the outer surface.
Delgado and V.P. de Freitas: Wetting and Drying of Building Materials, Drying and Wetting of Building Materials and Components, Chap. 3, 51–69, edited by J.M.P.Q.
Crank: The mathematics of diffusion (Oxford Science.
Krokida: Drying Kinetics of Some Building Materials.
Journal of Food Science, Vol. 53: 1216–1219 (1988)

Crosslinked materials from polyethylene terephthalate (PET), glycerol and clay were obtained.
Materials with concentrations of clay from 1, 10, 20, 30, 40 and 50%w/w were obtained.
Differential scanning calorimeter (DSC), Soxhlet extraction, colorimetry and Shore D hardness were used to characterize the materials.
The hardness of crosslinked materials increased according to the rise in the clay, due to the presence of ceramic material and agglomeration of particles.
[5] Wu Yuguang, Zhang Tonghe and Liu Andoni: Science in China (Series E) Vol. 46 (2003) p. 125.

Soboyejo, A new friction law for the modelling of continuous drive friction welding: Applications to 1045 steel welds, Materials and Manufacturing Processes 14 (1999) 845-860
Reed, Modelling of inertia welding of IN718 superalloy, Materials science and technology 27 (2011) 1249-1264
Venkata Ramana, Role of nickel as an interlayer in dissimilar metal friction welding of maraging steel to low alloy steel, Journal of materials processing technology 212 (2012) 66-77
Bray, Finite Element Modeling of the Inertia Friction Welding of Dissimilar High-Strength Steels, Metallurgical and Materials Transactions A (2013) 1-11
Shercliff, 3-Dimensional CFD modelling of flow round a threaded friction stir welding tool profile, Journal of materials processing technology 169 (2005) 320-327

Study on Improved Grinding Process of Sapphire with LED Substrate Material in Manufacturing Engineering Hai Zhou 1,a, Xiaoming Xu 1,2,b, Zhiguo Zhuo 1,2,c, Yue Zang 1,3,d, Louxi Xu 1,e, Huan Feng 1,f (1 Yancheng Institute of Technology, Yancheng, 224051, China) (2 Changzhou University, Changzhou , 213164 ,China) (3 Jiangsu University, Zhenjiang , 212013 ,China) azhouhai@ycit.cn, b43293257@qq.com,c375194103@qq.com, dzangyueaifangtong@163.com, e54341242@qq.com, f641538135@qq.com Keywords: Sapphire, Robber pad grinding, TTV, BOW Abstract: Method for grinding by adding rubber pad between LED sapphire substrate and ceramic supporting is proposed though the ANSYS finite element analysis, which obtains high flatness of the surface of a substrate efficiently.
Introduction The sapphire substrate is in the lighting industry in the most widely used LED substrate material, having excellent optical properties, mechanical properties and stable chemical properties [1,2], its precision machining technology, which mainly includes: slicing, grinding or grinding, chemical mechanical polishing, cleaning process.
Acknowledgment Project is supported by Natural science foundation of Jiangsu Province (No.BK2008197), Industrialization of scientific research promotion projects of colleges in Jiangsu Province (No.JH10-X048) and Qing Lan project in Jiangsu Province.
International Journal of Machine Tools and Manufacture, 2005,45 (10) :1140-1151
International Journal of Machine Tools and Manufacture,2008,48: 1297-1307.

Journal of Magnetism and Magnetic Materials, 308(1), 5–9
Journal of Magnetism and Magnetic Materials, 295(2), 145–154
Optical Materials, 31(5), 716–719
Advanced Materials Research, 501, 324–328
Journal of Magnetism and Magnetic Materials, 321(22), 3752–3757

Materials synthesis parameters allow tailoring the crystal structure of material for obtaining the desired properties.
Moreover, doping by alloying elements is well-known a approach to tuning the properties of magnetic materials.
Journal of Materials Processing Technology, 278 (2020) 116542. https://doi.org/10.1016/j.jmatprotec.2019.116542 [12] Y.
Ermakov, Magnetic anisotropy of MnAl and MnAlC permanent magnet materials.
Journal of materials science letters 7(4) (1998) 314-318.

Among them Cr(VI) is highly poisonous and endangers public health, however, in contrast to Cr(III), which can be easily adsorbed onto all kinds of inorganic and organic materials at neutral pH, Cr(VI) is only weakly adsorbed onto inorganic surfaces[3].
Experimental Materials.
Acknowledgements This work was supported by the National Natural Science Foundation(51062011), Gansu Natural Science Foundation(1208RJYA086) and the Hongliu Young People Train Plan of Lanzhou University of Technology(Q201013).
[4] Jie Daia, Han Yana, Hu Yanga, Rongshi Chenga, Chemical Engineering Journal, 165 (2010), p.240
[9] Li C J, Ma B X, Huo X X, New Carbon Materials, 14(1999), p.19.

For a given type of an instrument it is necessary to measure the dependence of temperature on wear; measuring during operation is reliable, when the same parameters are ensured, particularly the preservation of the approximate hardness of machined materials.
Chellamalai, Monitoring of hard turning using acoustic emission signal, The Journal of Mechanical Science and Technology 26 (2012) 609-615
Cheng, Signal analysis and real-time monitoring for wafer polishing processes using the ch computing environment, The Journal of Mechanical Science and Technology 23 (2009) 2814-2822
Rimár, Simulation study of two alternative workstations for pressure die-casting process, Applied Mechanics and Materials, 110-116 (2012) 660-664
Paško, The effect of degassing pressure casting molds on the quality of pressure casting, Advanced Materials Research. 428 (2012) 43-46

Materials and Methods Experimental Raw Water.
References [1] Lan Luo: Journal of China University of Geosciences (Social Sciences Edition).
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