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Miftaur Rahman2, b 1Department of Materials & Metallurgical Engineering, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh 2Assistant Professor, Department of Materials & Metallurgical Engineering, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh *Corresponding author: a*masum.billahbuet@yahoo.com, bmiftaurrahman@mme.buet.ac.bd Keywords: Barium Titanate; Lanthanum doping; Microstructure; X-ray Diffraction; Frequency; Dielectric properties.
The raw materials were La2O3 (grain size=~80nm) and BaTiO3 (grain size=100nm) powders.
Adding a relatively low concentration leads to room temperature semiconducting ceramics with positive coefficient of resistivity (PTCR) effect whereas higher dopant concentration leads to insulating materials [5,6,7].
Czekaj, Fabrication and Dielectric Properties of Donor Doped BaTiO3 Ceramics, Archives of Metallurgy and Materials, Vol-54, Issue-4, 2009
Norton, Ceramic Materials of Science & Eng.

Test Specimen and Test Method Five Japanese Industrial Standard materials were used.
Clear difference among materials was observed in low R region.
[3] Y.Kondo et al., T., Fatigue and Fracture of Engineering Materials and Structures, Vol.26, 2003, pp.675-682
[4] M.Kikukawa et al., Journal of the Society of Materials Science, Japan, 1976, pp.899-903
[5] A.J.McEvily et al., Fatigue and Fracture of Engineering Materials and Structures, Vol.26, 2003, pp.269-278.

In order to design reinforced concrete member using steel fiber ultra high strength concrete, current structural design methods should be re-evaluated because it has significant difference in material characteristics compared with normal concrete.
For the safe design for ultra high strength concrete with steel fiber, perfect bond should be guaranteed and development length should be evaluated with specific material characteristics especially bond strength.
Material test results also were shown in Table 1.
This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT & Future Planning(No.
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Table.2 Size of the piezoelectric materials No.
A review of power harvesting using piezoelectric materials (2003-2006).
Materials Chemistry and Physics 121 (2010) 63-69 [9] Daniel Guyomar, Mickaël Lallart.
Materials Science and Engineering B, Volume 112, Issue 1, 15 September 2004, Pages 5-9
Journal of Synthetic Crystals, Vo.l 39, No. 1 February, 2010, Pages 72-76.

There are two filaments that are coated with electron emission materials in the fluorescent tubes.
The materials linked by the methods of fastening, embedding, winding and packaging are easily separated.
However, it is difficult to separate the materials linked by the methods of plating, bonding and sealing.
The screening is one of the most commonly used separation processes, which is used to prepare the materials with the uniform particle size range.
Journal of Jiangxi University of Science and Technology, 2007(1): 42-44

In the linear mixed model the material properties of matrix are assumed according to the relation , where is material property of phase, is subsequent material property of matrices as a whole.
Withers, Prediction of residual stress distributions for single weld beads deposited on to SA508 steel including phase transformation effects, Materials Science and Technology Vol 26, Issue 8 (01 August 2010), pp. 940-949
CMES Journal: Computer Modeling in Engineering & Sciences, CMES, Vol. 28, No. 1, pp. 1-14, 2008
Farrar, An Atlas of Continuous Cooling Transformation (Cct) Diagrams Applicable to Low Carbon Low Alloy Weld Metals, Institute of Materials, London, 1995
Devaux, Mathematical models of anisothermal phase transformations in steels, and predicted plastic behaviour, Materials Science and Technology, Volume 1 Issue 10 (01 October 1985), pp. 815-822 [10] J.B.

It has been proved to be one of the most promising materials for various applications such as solar energy conversion, fuel cells, paints and photocatalysts, especially in the processes of environmental remediation [5–10,33-35].
Experimental Expanded graphite was prepared by microwave irradiation.The nano-sized TiO2 was prepared by the homogeneous hydrolysis method with low temperature crystallization. 2.1 Materials Expandable graphite was purchased from Qingdao Nansu Hongda Graphite Co.
Journal of the European Ceramic Society 30 (2010) 2481–2490 [32] Xueqing Yue, Ruijun Zhang, et al Desalination 252 (2010) 163-166 [33] J.N Huang,Y.C Zhang, H.Y Zhu,et al.
Materials Science Forum Vols. 620-622 (2009) pp 481-484 [34] Y.C Zhang, Z.F Zhu, HY Wu, et al.Materials Science Forum Vol. 658 (2010) pp 467-470 [35] Y.C.
WU, et al, Materials Science Forum Vols. 610-613 (2009) pp 316-322

According to the theory of inorganic solid chemistry, Yang Qiuhua [13] pointed out that the band gap of semiconductor materials were concerned with ionicity of semiconductor which had relationship with the electronegativity of the corresponding elements.
Environmental science and technology, 25(2002) 4-6
Chinese Journal of Catalysis, 20(1999) 623-627
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Advanced Materials in Catalysts.

Finally, the field of nuclear fusion has found numerous uses for these materials.
Vertical material method.
Huazhong University of Science &Technology, 2003(In Chinese) [2] JEON M K, KIM W B, HAN G C, et al.
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Effect of the interface Control process of wood fiber/PLA on properties of composites Yi-qiang Wu 1, a, Xiao-mei Liu 2, b and Xin-gong Li 3, c 1,2,3 School of Materials Science and Engineering Central South University of Forestry and Technology , Changsha, P.R.
The CO2 which comes from the degradation of composite materials will be absorbed by NaOH.
Chemical Materials for Construction, 2008, 24(3): 1-4
Chinese Journal of Materials Research, 2007, 21(2): 119-120
Journal of Forestry Research, 2005, 16(3): 241-244