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Previously dentures are made from several materials, such as bone, wood, ivory, and vulcanized rubbers.
Cavalu, PMMA/Mg3Al2(SiO4)3 bone cements: production, structural characterization, bioactivity and biocompatibility evaluation, Romanian Journal of Materials, 47 (2017) 121 – 128
Dental Journal, 51 (2006) 52-56
Alwan, Impact and Flexural Strength of Kaolinite / Glass Fibers Reinforced Heat-Cured Acrylic Denture, ‏Materials Science Forum. 1002 (2020) 340-349
Liew, The effects of alkali treatment on the mechanical and chemical properties of pineapple leaf fibres (PALF) and adhesion to epoxy resin, IOP Conference Series Materials Science and Engineering, 368 (2018) 1-10

Distribution of representative impurities in metallurgical-grade silicon using CaO-SiO2-CaF2 and CaO-SiO2-CaCl2 slags Liuqing Huang1,A, Huixian Lai1,Chenghao Lu1, Ming Fang1, Juan Chen1, Yanxu Lin1, Deqin Yu1, Jintang Li1, Wenhui Ma2, Jianning Shen3, Xuetao Luo1,B 1Department of Materials Science and Engineering, Xiamen University, Xiamen 361005, P R China; 2National Engineering Laboratory for Vacuum Metallurgy, Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, P R China; 3Ningxia Electrical Power Ltd.
Metallurgical and Materials Transactions B.36 (2005)731-736
Tsubaki, Refining of metallurgical silicon by directional solidification.Materials Science and Engineering B.176 (2011)217-226
Journal of Non-Crystalline Solids .358 (2012)3079-3083
Song, The effect of CaF2 on the viscosities and structures of CaO-SiO2(-MgO)-CaF2 slags.Metallurgical and Materials Transactions B.33 (2002)723-729

A high-speed double and triple layer rotor design is proposed and different composite materials are tested to achieve the most suitable recipe.
The maximum stress and the density (s/ρ) of composite materials are significantly higher than any metals.
All the proposed composite materials in this work are commercially available [2].
Tae-Hyun, Optimum Design of Multi-ring Composite Flywheel Rotor Using a Modified Generalized Plane Strain Assumption, International Journal of Mechanical Sciences, Vol. 43 (4) (2001), pp. 993-1007
Han, Design of a Hybrid Composite Flywheel Multi-rim Rotor System Using Geometric Scaling Factors, Journal of Composite Material, Vol. 42 (8) (2008), pp. 771-786.

Kaewkhao1,2, b 1Science Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand 2Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand atuscharoen@hotmail.com , bmink110@gmail.com Keywords: Glasses, Shielding, Strontium Borosilicate Abstract.
Experimental Glasses having the formula xSrO:(70-x)B2O3:30SiO2 where x = 25, 30, 35, 40, 45 and 50 mol% (SrBS 1-6) were prepared from reagent-grade raw materials of H3BO3, SiO2, BaCO3 and SrO with purities higher than 99 wt% were chosen as starting materials.
[3] Kumar, S., Mishra, R.K., Tomar, B.S., Tyagi, A.K., Kaushik, C.P., 2008, “Heavy ion Rutherford backscattering spectrometry (HIRBS) Study of barium diffusion in borosilicate glass”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.
[4] Mishra, R.K., Kumar, S., Tomar, B.S., Tayagi, A.K., Kaushik, C.P., Raj, K., Manchada, V.K., 2008, “Effect of barium on diffusion of sodium in borosilicate glass”, Journal of Hazard Materials, Vol 156 (1–3), pp. 129–134
[5] Tomar, B.S., Kumar, S., Shrikhande, V.K., Kothiyal, G.P., 2005, “Study of cesium diffusion in borosilicate glass by heavy ion Rutherford backscattering spectrometry”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atom, Vol 227 (3), pp. 391–396.

The constitutive relation of couple stress is turned out in the form[8-10]: (6) The parameter is defined the rotational modulus in describing the rotational property of materials.
Then there are totally three material parameters for the generalized linear elasticity.
Acknowledgements This work was financially supported by National Basic Research Program of China (2011CB612211) and National Natural Science Foundation (11072276).
Smart Materials and Structures, Vol.10(2001), p. 1256-1271 [7] Dedkov GV.
Journal of the Mechanics and Physics of Solids, Vol.51(2003), p. 1477-1508 [9] Chong AC, Yang F , Lam DC , Tong P.

Introduction Particle reinforced Aluminum alloy matrix composite is one of the most promising materials to substitute the conventional structural alloys [1].
Ordnance Material Science and Engineering, 2009, 32(2): 120-124.
Journal of Northeastern University(Natural Science), 2010, 6 (31): 820-823.
Chinese Journal of Rare Metals, 2008,32(4): 433-436.
The Chinese Journal of Nonferrous Metals, 2010, 2(20): 209-216.

The weight gained demonstrated the amount of particles absorbed on metallic materials through electrophoresis process.
Journal of Engineering Science and Technology, 7(4), (2012) 517–518
Journal of Materials Science, 53(21), (2018) 14885-14906
F.Ashby, Engineering Materials 1: An introduction to properties, applications and design.
Materials Selection in Mechanical Design, 1, (2011). 1–464

Dip coated magnesium-substituted hydroxyapatite coatings on magnesium alloy for biomedical applications Quanhe Bao1, 2, a*, Chao Sun1,b, Chen Zhang1,c, Jieqing zhang2,d 1School of Materials Science and Engineering, Anhui University of Technology, P.R.
China, Maanshan 2Wuxi Guangxu New Materials Technology Co., Ltd.
Kumta, Novel sol–gel derived calcium phosphate coatings on Mg4Y alloy, Materials Science and Engineering: B, 176 (2011) 1679-1689
Raeissi, Controlling the degradation rate of AZ91 magnesium alloy via sol-gel derived nanostructured hydroxyapatite coating, Materials Science & Engineering C-Materials for Biological Applications, 33 (2013) 3817-3825
Kumta, Sol–gel synthesis and characterization of nanostructured hydroxyapatite powder, Materials Science and Engineering: B, 111 (2004) 232-236

Materials and Methods Sampling Procedure and Soil Sample Collecting Forest soil of Fraxinus velutina (Tianjin city tree) located in the improvement center of saline-alkali soil in Dagang district of Tianjin city was selected as experimental station, and the area of forest soil was 50 mu.
Biggs, Bin Bin Jiang, Journal of Environmental Quality, 38 (2009) 887-896
(In Chinese) [5] Xiao R-B, Wu P-T, Lei J-Y, Ban N-R, Journal of Agro-Environment Science, 31(12) (2012) 2433-2440
Journal of Forestry Research, 23(2) (2012) 267-274
(In Chinese) [13] Mingyan ZHao, Guodong Ding, Hongbin ZHeng, Weicheng Zhang, Li Zhang, Zixu Li, Chinese Journal of Soil Science, 40(4) (2009) 751-755.

In 2004, Nagashima and Suemasu [2] analyzed the interface between various materials using the extended finite element method.
The stress intensity factor of the crack of mode I in the isotropic materials is numerically calculated based on the extended finite element method.
Elastic crack growth in finite elements with minimal remeshing, International Journal for Numerical Method in Engineering, 45: 601-620, 1999
Application of extended finite element method to fracture of composite materials, European Congress on Computational Methods in Applied Sciences and Engineering, Finland, 2004
A combined space-time extended finite element method, International Journal for Numerical Methods in Engineering, 64: 260-284, 2005