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The obtained asphericity and material removal function is more suitable for the machining and test.
Acknowledgements This research is financially supported by the key project of the Science and Technology Development Plan of Jilin Province (No. 20080352).
Key Engineering Materials, 364-366: 499-503，2008
Journal of Tsinghua University, 44(8): 1040-1042+1046，2004
Beijing: Science Press, 46，2001

Materials and Samples The samples were made of the CEM I 42.5 Portland cement produced in Radotín, CZ.
Godard, Reinforcement of hydrated portland cement with high molecular mass water-soluble polymers, Journal of Materials Science 42 (2007) 4858-4869
Robertson, Effects of Polyvinyl Alcohol on Aggregate-Paste Bond Strength and Interfacial Transmition Zone, Advanced Cement Based Materials 8 (1998) 6676
Plachý, Evolution of Mechanical Properties of Gypsum in Time, International Journal of Mechanics 1 (2011) 1-9
[7] ASTM E1876-01, Standard Test Method for Dynamic Young’s Modulus, Shear Modulus, and Poisson’s Ratio by Impulse Excitation of Vibration, Annual Book of ASTM Standards, American Society for Testing and Materials, 2006, pp. 1-6

Temperature- dependent thermal and mechanical properties of welded material were considered in this model.
Shipway: Computational Materials Science 50(2011), p. 2592
Withers: Metallurgical and Materials Transactions B Vol. 36 (2005), p. 513
Walloe: Journal of Materials Processing Technology Vol. 125-126(2002), p. 387
Duan: Welding Journal Vol. 82(3)(2003), p.65s

Introduction The cubic silicon carbide (3C-SiC) is an emerging material for MEMS thanks to its outstanding mechanical properties.
Roncaglia, Journal of Microelectromechanical Systems, 29 (2020), art. no. 8896977, pp. 117 – 128
Leycuras, Material Science Forum 338 (2000), pp. 241-244
Bangtao, Journal of Electronic Materials 42 (2013), pp. 485-491
Roncaglia, International Conference on Silicon Carbide and Related Materials (ICSCRM 2022), Davos, Switzerland, 11-16 Sept. 2022, Materials Science Forum 1089 (2023), pp. 57 – 61

In order to expand the applicable scope of biological material, both macro-structure and nano-fiber select high-volatility mixed solution as raw materials, uses vacuum technology to accelerate solvent's evaporation rate and improve the mechanical properties and structure of the scaffold stability.
Forming process as shown in Fig.5, when the receiving platform is placed at the position A, Polymer solution materials would be continuously extrude by the RP method under the action of pressure P, and form a layer of macro-structure.
Through the effect of both pressure field and temperature field for a very short time, macromolecular solution materials will quickly dry and solidify.
Ramakrishna: Composites Science and Technology Vol.63(2003)，Issue 15，p.2223-2253
Sun: Journal of Medical Biomechanics Vol.20(2005), No.4, p.247-255

The fabrication of W-Cu modified layers on the surface of the continuous casting machine mould copper plate by infiltration Hai-tao Maa, Wen-ping Huangb, Lai Wangc School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China ahtma@dlut.edu.cn, bwenping7470@sina.com, cwangl@dlut.edu.cn Keywords: mould copper plate; surface modified layer; W-Cu alloys; infiltration; bonding strength Abstract: In this paper, a new method named infiltration was applied to fabricate W-Cu surface modified layers of copper mould firstly in order to promote the life span of the continuous casting machine (CCM) mould.
Experimental In this work, W powders with average particle size 1μm, 4.8μm and 300 meshes and Cu powders with average particle size 10 μm were used as raw materials in Fig. 1.
SEM images of W-Cu40 modified layer and copper substrate Conclusions W-Cu40 modified layers on the surface of the CCM mould copper plate were successfully fabricated by presingtering and infiltration processes using commercial tungsten and copper powders as raw materials.
Journal of Materials Science, Vol. 37 (2002) p. 5345-5353 [3] Zhao L D, Matthias M, Falko F, et al.
Powder injection molding and infiltration sintering of superfine grain W-Cu [J].The International Journal of Powder Metallurgy, Vol. 33(1997) p. 551-554 [9] German R M.

Introduction Recently interest is increasing in the development of biodegradable polymers for packaging materials in order to reduce the environmental pollution caused by plastic waste[1,2].
It must be modified or blended with other materials to achieve a more appropriate property balance.
Materials and Methods 2.1 Materials High amylose maize starch (HAMS, content of amylose:50%; ).
Journal of Agricultural and Food Chemistry, 45, 4237-4241 (1997)
Journal of Food Engineering, 2012, 108(2):320–326

Silicon Carbide is chosen due to its excellent material properties and chemical stability compared to silicon in varying environmental conditions.
Xin-Hui, Xiu-Cheng and Di Chen, “A MEMS-based piezoelectric powergenerator array for vibration energy harvesting.”, Microelectronics Journal, vol:39, pp.802-806, 2008
Mehregany, “Electromechanical computing at 500C with Silicon Carbide”, Science, vol:329, pp:1316-1318, 2010
Epstein, “Millimeter-scale, Micro-ElectroMechanical Systems gas turbine engines”,ASME journal of Engineering for Gas Turbines and Power, vol:126(2), pp: 204-226, 2006
Xu, “Developed of SiC-based gas sensors foraerospace applications”, Material Research Society Symposium Proceeding, vol.815, 2004

Long drifter lifetimes are achieved by taking steps to reduce excessive flexing and shock loadings in the tether assembly, and by selecting materials and finishes which are resistant to corrosion, degradation and fouling.
Sew two lines of zigzag stitches through four layers of material to close the pockets
This research was supported by Strategic leading science and technology special project of China Academy of Sciences(Class A) under Grants No.
XDA11040306, Nantong science and technology development plan under Grants No.
JOURNAL OF CLIMATE, Vol 26(13): 4758-4772.2013

Guz: Modelling and optimal design of thick-walled composite pipes under in-service conditions, IOP Conference Series: Materials Science and Engineering, Vol. 936 (2020), p. 012046.
Guz: Stress analysis of layered thick-walled composite pipes subjected to bending loading, International Journal of Mechanical Sciences, Vol. 88 (2014), pp. 289-299.
Li: Novel two-level strategy to exactly solve multilayer composite cantilever tubes of cylindrically orthotropic materials, Composite Structures, Vol. 237 (2020), p. 111866.
Amico: Carbon/epoxy filament wound composite drive shafts under torsion and compression, Journal of Composite Materials, Vol. 52 (2018), pp. 1103-1111.
Mutasher: Prediction of the torsional strength of the hybrid aluminum/composite drive shaft, Materials & Design, Vol. 30 (2009), pp. 215-220.