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Volume fraction equals the ratio of the volume of certain material and the mixture’s total volume, in the formula (1), , are the volume fraction of water and Fe in the mixture respectively.
For the mixture which contains two kinds of material[3], the mathematical formula of relative dielectric constant is: When the Fe and water in the iron ore concentrate are mixed according to the mass, the relative dielectric constant is: （4） Where is the ratio of the mass of water and Fe, similarly, we can obtain the dielectric constant of iron ore concentrate ()when the ,,, is known.
As mentioned above, when processing the powder, regarding the Carla powder as mixture which only contains Fe and water, other material is neglected.
Acknowledgement It is a project supported by the Natural Science Foundation of Zhejiang Province(Y1090921)and Science and Technology Project of Zhejiang Province(Y200804882).The corresponding author is Zhiping Chen.Zhiping Chen, Male, professor and doctor,research direction: electromechanical engineering, precision instrument and machinery.
[3]Jianle Cai, Chuliang Qiao, Wenjie Jiang.The cubic root of mixture dielectric constant transformation law and its relativity[J].Journal of hebei university (natural science edition).1999(02): 32-34, 46

Effect of Simulation Conditions on Grain Selection during Solidification of Single Crystal Casting Chuntao Liu1, a, Xiangmei Li 1,b, Bo Wang1,2,c, Zhongming Ren1,d and Jieyu Zhang1,e 1Shanghai key lab. of modern metallurgy & material processing, Shanghai University, Shanghai 200072, China 2Inner Mongolia University of Science and Technology, Baotou, 014010, China achuntao_liu@yahoo.cn, bjoe_li@163.com, cwangbo1974@shu.edu.cn, dzmren@mail.shu.edu.cn, ezjy6162@staff.shu.edu.cn Keywords: Directional solidification, Boundary conditions, Modelling, Grain selection Abstract.
SHUCX102251) and the research fund from the Science and Technology Committee of Shanghai (No. 08BZ1130100).
Materials Science and Engineering.
International Journal of Cast Metals Research.
The Minerals,Metals&Materials Society, (2008), p. 367 [8] H.J.

Experimental details Raw materials.
Wang: Construction and Building Materials, Vol. 25 (2011), p.705
Chen, N Liu: Construction and Building Materials, Vol. 44 (2013), p.691
Pacheco-Torgal: Construction and Building Materials, Vol. 51 (2014), p.151
Wang: Construction and Building Materials, Vol. 56 (2014), p.113

Grain size and its distribution are important parameters which reflect the microstructure of metallic materials, and directly affect the mechanical properties and physical properties of materials, so it is an important parameter in production process control [2,3].
The operating frequency commonly used in industrial ultrasonic testing is in the range of 0.5-10MHz, in which the high frequency part of ultrasound is mainly used for fine-grained materials and high sensitivity detection, and the low frequency part is often used for faster decay and coarse-grained materials detection.
It could achieve directional emission and reception by Special equipment and can be used to detect the internal of materials effectively [4,5].
Wang, A Belyakov, Grain boundary assembles developed in an austenitic stainless steel during large strain warm working, Materials Characterization. 70.4 (2012) 14-20
Yang, Directional dependence of aluminum grain size measurement by laser-ultrasonic technique, Materials Characterization. 129 (2017) 114–120

Introduction Semiconductor nanoparticles display their fascinating electronic and optical properties as a consequence of their dimensional reduction, which makes them ideal candidate materials for the fabrication of nanometer-sized electrical and optoelectronic devices.
Due to this, we prepared a HgTe nanoparticles-poly(N-vinylcarbazole)(PVK) hybrid system to examine if this material acts as an efficient charge-transporting organic material for the enhancement of the photocurrent of HgTe nanoparticles.
To obtain HgTe-PVK hybrid materials, a 2-ml toluene solution, including HgTe nanoparticles, was mixed with 20-ml toluene dissolved in 0.01-g PVK.
Acknowledgment This research was performed for the Carbon Dioxide Reduction & Sequestration Center, one of the 21 st-Century Frontier R&D Programs funded by the Ministry of Science and Technology of Korea Fig. 4.
time (sec) HgTe-PVK HgTeTitle of Publication (to be inserted by the publisher) (M102KP010001-02K1601-01310) and the National R&D Project for Nano Science and Technology.

It issimpletomodifyits properties by combining with other materials and cheap in the manufacturing costs.
Nanocomposite surface was viewed using SEM to observe the size of the fibre diameter in the material.
J.; et al, "Bone structure and formation: A new perspective", Materials Science and Engineering: R: Reports (58) Issues 3–5, 28 November 2007,77–116
Cytobiologie European Journal Of Cell Biology (16) 1977, 1-15
[8] Zimmermann, K.A.; LeBlanc, J.M.; Sheets, K.T.; Fox, R.W.; Gatenholm, Paul., “Biomimetic design of a bacterial cellulose/hydroxyapatite nanocomposite for bone healing applications”, Material Science and Engineering C 31, 2011, 43-49.

Introduction Vibrating screen is using the vibration principle to make the material throw up continuously, which can realize material sieving.
According to this, the elastic modulus of the rubber spring and the elastic modulus of the rubber material has the following relationship
Acknowledgements The authors acknowledge the financial support from Natural science fund in Jiangsu Province (BK2012865) and college students of science and technology innovation projects in Jiangsu Province (201311276008Z).
Yang: Applied Mechanics and Materials.
(In Chinese) [6] Xiaolan Yang: Journal of vibration and shock.

Introduction Copper base alloys have been developed for the high performance conduction materials of a nuclear fusion reactor.[1] In order to apply the material for a nuclear power plants, it is necessary to evaluate materials properties under irradiation conditions.
Although various copper base alloys for the high performance conduction materials of a nuclear fusion reactor, little information is available about the properties such as mechanical and oxidation behaviors at post-irradiation condition, especially quasi-nano-filamentary composites.[2] In this study, irradiation effect on the mechanical properties and oxidation behavior of quasi-nano filamentary copper-silver composites were carried out by nano-indentation technique to evaluate various mechanical properties of irradiated composites for reduction of nuclear wastes and to establish an experimental method to analyze irradiated materials.
Acknowledgements This study was supported by Korea Science and Engineering Foundation (KOSEF) and Ministry of Science and Technology (MOST), Korean government, though National Research Laboratory (NRL) Program.
Lyapunova, Journal of Tambov State University, Vol. 3(3) (1998) p. 1.

At present, a lot of researches on single-component IFR are mainly PEPA[10], Trimer and Melabis[11], etc., and their raw materials are pentaerythritol (carbon source), melamine (air) and phosphorus oxychloride (acid source), which prepare in the organic solvent.
V-0 rating corresponds to the best flame retardancy of polymeric materials.
Fire retardancy of thermoplastic materials by intumescence[J].
The importance of intumescent systems for fire protection of plastic materials[J], Polymer International, 2000, 49(10): 1106-1114
Plastic,2006,3(5):57-60 [11] Wang J C, Chen Y H, Flame-retardant mechanism resulting from an intumescent system[J], Journal of Fire Sciences, 2005, 23(1): 55-74

Large scale synthesis of BaTiO3 nanorods by a template way Zhao Deng 2, a, Ying Dai 1,2,b, Hairui Liu 2, c, Wen Chen 1,2,d 1 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070 2 School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 40070 a dengzhao@whut.edu.cn, bdaiying@whut.edu.cn, cliuhairui@whut.edu.cn, dchenw@public.wh.hb.cn Keywords: BaTiO3, nanorods, core - shell, template, precipitation Abstract.
Introduction 1-dimensional (1D) nanostructured materials are of fundamental importance for their potential applications as building blocks in nanoelectronics, and they have attracted extensive synthetic attention as a result of their novel size-dependent properties.
The starting materials used included H2Ti8O17 nanorods, Ba(NO3)2 (commercial, AR) and H2C2O4·2H2O (commercial, AR).
Triscone: Science, Vol. 303 (2004) p.488-491
Sarkar: Journal of Electroceramics, Vol. 11 (2003) p.131-137.