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Gardea-Torresdey Journal of Vacuum Science & Technology B Vol. 19 (2001) p. 1091
Zhao Applied Physics A: Materials Science & Processing Vol. 78 (2004) p. 703
Jiang Materials Science & Engineering B Vol. 131 (2006) p. 191
Ohring: Materials science of thin films deposition and structure (Academic Press, New York 2002)
Lu Materials Science & Engineering A Vol. 286 (2000) p. 188

PMMA was widely used in the field of artificial decorative materials, construction of industrial parts, the materials of optical information and electrical components package[3].
Materials and experiment Materials.
Acknowledgements The authors are grateful to the Doctoral Fund of Southwest University of Science and Technology (Contract No:10zx7104) and the Opening Fund of Engineering Research Center of Biomass Materials ofMinistry of Education, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China (Contract No:09zxbk01) References [1] TAFUR M I,BOOM H P A,KOONEN A M J, et al.
Journal of Applied Polymer Science,2007,103:1279-1286
Journal of Colloid and Interface Science,2009,336:443-448

To effectively detect the defects, the dispersion characteristics and multimode of guided waves in the plate are studied by the disperse simulation software, and the variation of dispersion curve is analyzed by the geometric parameters and materials of plate.
Fig.1 Dispersion curves of Lamb wave propagation in steel plate, the thickness of plate is 1mm Fig.2 Dispersion curves of Lamb wave propagation in steel plate, the thickness of plate is 2mm Fig.3 Dispersion curves of Lamb wave propagation in steel plate, the thickness of plate is 3mm Fig.4 Dispersion curves of Lamb wave propagation in steel plate, the thickness of plate is 4mm Material impact on Lamb wave dispersion curve Lamb wave dispersion curves for a plate of the same thickness have essential differences due to the difference in materials selecting, the density of the material, the longitudinal velocity and shear velocity of the guided wave propagation.
Lamb wave dispersion curves for a plate of the same thickness vary from each other due to the different physical characteristics of different materials.
References [1] Bin Lu: Journal of Jiaozuo University Vol. 1(2004), p.73 [2] Michael J.
Rapid: Advances in Noddestructive Evaluation PT 1-3(2004), p.270 [8] Shi Yan, Haifeng Zhang and Yanyu Meng: Journal of Huazhong University of Science and Technology Vol.27 (2010), p.1

Introduction Composite materials are part of the science of materials engineering that aims to obtain better mechanical properties.
Composite materials are parts of advanced materials that have better mechanical properties criteria than metals or other materials.
A composite material is a combination of two or more materials that have different constituent elements.
Prasad, Characterization of Natural Fiber Reinforced Composites, International Journal of Engineering and Applied Sciences (IJEAS) ISSN: 2394-3661, Volume-4, Issue-6, 2017
Series: Materials Science and Engineering 505, 2019, 012133 IOP Publishing doi:10.1088/1757-899X/505/1/012133

Journal of Hazardous Materials, Vol. 179 (2010) No.1-3, p 926 [3].K.
Journal of Hazardous Materials, Vol. 163. (2009) No. 2-3, p 593 [4].E.
Journal of Hazardous Materials, Vol. 156 (2008) No. 1-3, p 260 [10].
Microporous and Mesoporous Materials, Vol. 21 (1998) No. (4-6), p 289 [16].
Microporous and Mesoporous Materials, Vol. 122 (2009) No. (1-3), p 275 [20].

The process of filling materials is related to studies of soil and medium mechanics.
The filling performance for different materials of the bucket after optimization For the mechanical excavator, the flow patterns inside the bucket of the different materials are different.
A DEM simulation model of bucket digging materials is established, and the mining process of the bucket for different materials is simulated and analyzed.
This study not only visualizes the process of digging materials but also provides a feasible way to design the bucket structure for different materials.
Journal of Terramechanics, 2010, 47(1): 33-44

Radial Basis Neural Network based CAD System for Welding Material Juan Wang1, a, Siyu Lai2, b 1Department of Computer Science, China West Normal University, NanChong, China 2Department of Medical imaging, North Sichuan Medical College, NanChong, China awjuan0712@126.com, blsy_791211@126.com Keywords: computer aided design, welding material, radial basis neural network, feedforward, feedback Abstract.
A computer-aided design system for welding materials based on RBF (Radial Basis Function) neural network theory is designed and implemented.
This module can predict performance indices for materials when be given specific welding material formula
Development and Application of Materials, 2010, 35 (4): 83-87
Journal of Guangxi University of Technology, 2006, 41 (4): 79-84

China 2School of Materials Science and Engineering, Jingdezhen Ceramic Institute, 333001, P.R.
China 3Key Laboratory of Advanced Ceramic Materials in Jiangxi Province, Jingdezhen 333001, P.R.
All other raw materials are analytical grade.
The weighted errors of raw materials were controlled in the range of ±0.01g.
Lu: Journal of Xinjiang University.

Some scholars tried to establish strength theory of materials based on energy principles, and have made gratifying progress.
We know that the elastic strain energy is the energy driving material failure, but the volumetric strain energy is beneficial to stability, this is because rock, soil and concrete belongs to frictional materials.
Xie et al suggested a failure criterion for rock materials based on the releasable elastic strain energy before failure[13], which can be called as the energy release rate theory.
Xie: Journal of Sichuan University(Engineering Science edition) Vol. 40(2)(2008), p. 26 (in Chinese) [10] Q.Y.
Xue: China Civil Engineering Journal Vol. 45(9)(2012), p. 122 (in Chinese)

Thanks to high heating and cooling speeds, it eliminates cracks in sensitive materials.
Color figures are welcome for the online version of the journal.
Powell, Basic Principles, Properties and Metallurgy of Intensive Quenching, Journal of Materials and Manufacturing 2002.W.
Materials Science Forum Vol 782 (2014), pp. 306-310
Clem: submitted to Journal of Materials Research (2003) Advanced Materials Research Vol. 996 (2014), pp. 538-543