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Therefore, the material used in the molding process in the model is called styrene-butadiene rubber (SBR), which is a kind of material that is a random copolymer of butadiene and styrene.
During the melting rubber filling process, the unreasonable mold cavity design or the bad exhaust cause melt water or volatile ingredients enclosed in the forming material to be air bubbles; or the melt volume shrinkage during curing products produced uneven thickness in the process.
References [1] Karl Kuzman, Bla Nardin, Marjan Kova, Boris Jurkoek., Journal of Materials Processing Technology, 111(1-3), 2001, pp: 279-285 [2] L.
Journal of Materials Processing Technology, 139(1-3), 2003, pp: 81-89 [3] R.
Kumara., CIRP Annals - Manufacturing Technology, 46(2), 1997, pp: 629-652 [4] Hongyang Qiu, Yajuan Huang, Qiang Liu., Journal of Materials Processing Technology, 187-188, 2007, pp: 140-144 [5] Jaroslav Mackerle., Computational Materials Science, 31(3-4), 2004, pp: 187-219

Materials and Method Materials.
For the heat-resistant aluminum alloy conductor materials, the addition of Zr in Al-Zr system can greatly improve the high-temperature stability of the materials.
Journal of Dalian University of Technology. 2000 (04) 437-439
Materials Science Forum. 1996 (142) 217-222
Metallurgical and Materials Transactions B. 2014 45(2) 769-783

Wide applications are encountered in industries such as geothermal systems, underground pollutants disposal systems, storage of nuclear waste materials, solidification of casting, petroleum reservoir modelling, thermal insulation, electronic equipment cooling, powder metallurgy, ceramic engineering, and food and chemical industries [1,2].
Polymers, and by extension the Casson fluid model, have a wide range of applications that includes adhesives, coatings, foams, packaging materials, textile and industrial fibers, electronic devices, biomedical devices, optical devices and high-tech ceramic engineering.
Pop, Transport Phenomena in Porous Media, Elsevier Science Ltd, UK, 1998
Jayaraman, Casson fluid flow in a pipe filled with a homogeneous porous medium, International Journal of Engineering Science 34 (1996) 1145-1156
Makinde, Analysis of non-Newtonian flow with reacting species in a channel filled with a saturated porous medium, Journal of Petroleum Science and Engineering 121(2014) 1-8

Materials and methods Materials.
Advances in Earth Science, 23(11) (2008): 1167-1173.
Canadian Geotechnical Journal, 42 (2005): 287–296
Guangxi Sciences, 10(3) (2003): 205- 207, 215.
Applied Clay Science, 14(1999): 257–278

L-shaped steel tube concrete composite column specimens form The Foundation of ABAQUS Finite Element Model The Constitutive Relationship of Materials The Constitutive Relationship of Steels.
Shenyang jianzhu university journal(natural science edition) .2008,24(6): 939-944
Xi'AN University of Architecture and Technology journal (natural science edition).2008,40(4): 549-555
Civil engineering journal.2009,42(6): 14-21
Journal of Engineering Mechanics, 1998. 124(8):892-900

Shen, ZnO Schottky ultraviolet photodetectors, Journal of Crystal Growth 225 (2001) 110-113
Maiti, ZnO thin film sensor, Materials Letters 35 (1998) 33-38
Im, Effects of native defects on optical and electrical properties of ZnO prepared by pulsed laser deposition, Materials Science and Engineering B 71 (2000) 301-305
Singh, Structural and optical characterization of high-quality ZnO thin films deposited by reactive RF magnetron sputtering, Materials Research Bulletin 48 (2013) 1093-1098
Chen, Effects of different thermal treatment on optical properties and microstructure of ZnO thin films, Advanced Materials Research 197 (2011) 1766 -1770

Bonfield 1,f 1 Department of Materials Science and Metallurgy, Univesity of Cambridge, Pembroke Street, Cambridge, UK. 2 Orthopaedic Research Unit, Addenbrooke's Hospital, PO Box 147, Cambridge, UK 2 Department of Mechanical Engineering, University College London, Torrington Place, London, UK.
The biological response to the materials appears to indicate an optimum outcome for levels of silicon substitution of 0.8wt%.
This is because, until now, synthetic materials have been considered to produce inferior clinical results as compared with their natural counterparts.
Results and Discussion The sintered HA and Si-HA materials were confirmed to be phase pure with the expected levels of silicate substitution.
A., Journal of Materials Science: Materials in Medicine 13 2002 1199-1206 3.

Fiber materials are added in composites to increase the strength, whereas filler materials are generally inert materials which are added to reduce material cost and to improve the mechanical properties such as hardness and wear resistance to some extent.
Epoxy resin with silica sand composite materials for impact strength Fig 17.
Polyester resin with silica sand composite materials for impact strength Fig 18.
International Journal of Environmental Science and Development, Vol. 3, No. 5, October 2012
HUNTSMAM, Advanced materials, Structural composites, User Manual

Self-propagating High-temperature Synthesis(SHS) is a method of synthesizing materials making the use of the high heat released by the reaction of SHS.
Materials and Investigation Methods Experimental Materials.
The self-propagating spraying materials are Fe-based self-fluxing alloy powders and Fe-based self-fluxing alloy powders with 0.2% and 0.5% RE.
Journal of Thermal Science Vol.02(2005)
(In Chinese) [3] L.Liu, Q.J.Xue and H.W.Liu: An Active Mechanism for the Reactive Barrier of a Thermitebased SHS Process. , Journal of Inorganic Materials Vol.04(1996).

As we known that ZnO is an important n-type semiconductor materials, an electric field could affect the high-energy facets of the nano-particles.
Room-temperature ultraviolet nanowire nanolasers, Science. 292(2001)1897-1899
Aqueous synthesis of interconnected ZnO nanowires using spray pyrolysis deposited seed layers, Materials Letters . 64(2010)291-294 [10] S.
Catalytic Growth of Zinc Oxide Nanowires by Vapor Transport, Advanced Materials. 13(2001)113-116
Anionic surfactant-assisted hydrothermal synthesis of high-aspect-ratio ZnO nanowires and their photoluminescence property, Materials Letters. 60 (2006) 2777–2782 [22] G.H.