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College, Bhagalpur 812001, India 3Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology, Mumbai 400076, India 4University Department of Physics, T.M.
Introduction In recent years, there has been widespread concern about the toxicity and dangers of lead-containing materials like PbTiO3, Pb(Zn1/3Nb2/3), Pb(Mg1/3Nb2/3), Pb(Zr,Ti)O3, and others.
As a result, there has been a global push to find alternative lead-free materials [2].
Because of their important qualities such as dielectric, pyroelectric, piezoelectric, electro-optics, and others, perovskite ABO3 type non-lead ceramic materials have attracted a lot of attention.
The materials exhibited NTCR behaviour, indicating that they are insulating and/or semiconducting.

Zhao³ ¹ High-Tech Research Center, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama, Japan. ² Materials Engineering Institute, North University of China, Xueyuan Road No.3, Taiyuan, China. ³ Materials Engineering Institute, Beihang University, XueYuan Road No.37, BeiJing, China a dyju@sit.ac.jp Keywords: NiCuZn, boric acid, CIP, CO2, sintered body Abstract.
Conventional fabrication process is as the following: reagent-grade materials of NiO, CuO, ZnO and Fe2O3 were mixed to yield a composition.
Due to good conductivity of quartz material, the magnetic particles were rapidly cooled and then fine powers were obtained.
Bian: Materials Science Forum, 534-536(2007)557 [5] P.
Ju: Journal of Key Engineering Materials, 336-338(2007)695

INTRODUCING NEW CORE MATERIAL Soft magnetic composite (SMC) material in the novel motor will be replacing the permendur material.
Journal of Advanced Nursing, vol. 39, no. 5, 2002
Springer Science + Business Media, Inc.
Jansson, “SMC Materials - Including Present and Future Applica- tions”, PM2TEC Conference 2000, pp87-97 [17] A.G.
“Improved Design of a Novel PM Disk Motor by Using Soft Magnetic Composite Material,”.

Steps may be omitted or added depending on the variations in contact materials and wear modes.
Rabinowicz: Friction and wear of materials (John Wiley & Sons, New York 1995)
Modeling and Simulation in Materials Science and Engg. 13(1) (2005), p. 57-75 [5] B.
Hutchings: Tribology: Friction and Wear of Engineering Materials (Edward Arnold Publishers, London 1992)
Journal of Materials Processing Technology, 162-163 (2005), p. 139-148

In order to meet the requirement of high performance and weight reduction, continuous efforts are made upon the development of brake systems as well as brake materials.
Gray cast iron is the dominant materials for brake discs now.
DRA composites are becoming new brake materials which are attractive and competitive for automotive application.
Curran: Materials World, Vol. 6 No.1 (1998), p. 20
[4] G.Straffelini, M.Pellizzari, L.Maines, A.Molinari: International Journal of Materials and Product Technology, Vol.17 No.3-4 (2002), p. 275.

Introduction China is the earliest country in finding the characters of permanent magnet materials and applying into production.
For the design of small power permanent magnet DC motor, ferrite permanent magnet materials with low cost should be considered first.
Only when the ferrite permanent magnet materials could not meet the requirements, can rare earth permanent magnet materials be considered.
Considering ferrite permanent magnet materials which have higher coercivity and economic factor, the magnet pole of the permanent magnet motor applied in electric wheelchair use single structure that is tile shape ferrite material is chosen as the pole.
That is under similar conditions like volume, weight and materials, different results can be reached to meet the design data.

These strategies involve the study of nanocomposites including various combinations of materials i) conducting polymers / inorganic materials, ii) conducting polymers / graphitic nanostructures, iii) insulating polymers / inorganic materials and iv) insulating polymers /graphitic nanostructures.
Experimental Part & Results Materials.
C. and Nairn, J. (1999): Stress Transfer from the Matrix to the Fibre in a Fragmentation Test: Raman Experiments and Analytical Modeling, Journal of Composite Materials, 33(4), p.377
Complex thermoelectric materials.
Advanced Materials. 2010;22(36):3970-80

Materials and experiments 2.1 Materials An ordinary Portland cement (OPC) and a secondary fly ash (FA) complying with chinese standard GB175-2007 and GB/T1596-2005 were used in this study and the characteristics were examined using chemical analysis test, particle size analyzer and XRD test.
The chemical and physical properties of cementitious materials were listed in Table 1 and Table 2 by using X-Ray Fluorescence Spectrometry (XRF, BRUKER-AXS S4PIONEER, BRD).
Table 1 The chemical of cementitious materials and accelerator Chemical composition SiO2 Al2O3 CaO Fe2O3 MgO akali SO3 f-CaO Cl— OPC 19.5 6.45 57.57 3.08 1.21 0.93 2.01 0.81 0.007 FA 43.64 25.39 5.62 4.19 0.84 1.59 0.28 0.46 0.011 AC 14.74 18.83 32.72 4.17 0.64 10.17 0.29 / 0.3 Table 2 The physical properties of cementitious materials specimen Physical properties Compressive strength (MPa) Flexural strength (MPa) Specific gravity(g/cm3) Blaine fineness(cm2/g) 3days 28days 3days 28days OPC 3.08 3340 30.0 47.7 5.1 8.9 FA 2.09 4040 2.2 Specimen preparation Shotcrete specimens were prepared with three mixture for the same water-binder (w/b) ratios and dosage of fly ash.
Discussion In the forming process of shotcrete, cementitous materials and aggregate are sprayed at high velocity under air pressure and compacted under continuous impacted.
Res. 37(2007): 856 [12]J ong Pil Won, Hwang Hee Kim and Chang Il Jang: Journal of the Korea Concrete Institute, 19(2007):701

Empirical potential We used a many-body empirical potential, the Tersoff potential function, which has been widely used to develop the empirical potential function for several element and compound materials.
The Tersoff potential is based on the bond-order concept with good +Corresponding author : kok@semilab3.ee.cau.ac.kr Title of Publication (to be inserted by the publisher) transferability and has been an effective tool for evaluating new materials.
The referred papers summarized the comparison between the experimental and the calculated results of cubic materials.
The calculated equilibrium lattice constants of cubic materials are identical to the experimental results and the values of bulk modulus are in agreement with the experimental results.
Considering that the cohesive energies for the cubic BN, AlN and GaN structures are –6.630, –5.815 and –4.450 eV/atom, respectively, the cohesive energies for the NTs for the studied III-N materials are below 96.8, 85.6 and 98.8 % of the bulk materials.

In fact, it leads to stimulate research focuses on producing medical product especially from polymer raw materials.
Methodology Materials.
All the compounded materials were bring to injection section.
Feijen, Development of polycaprolactone/hydroxyapatite composite bio-materials.
Journal of Applied Polymer Science. 100(5): 3931-3942