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Iraqi journal of science, (2019) 57-68
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Thesis, University of Technology, Materials Engineering Department, Iraq. (2017)

Experiment Main Materials.
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Introduction According to statistics, the world annual consumption of iron and steel materials reached more than 700 million tons, of which 50% due to material wear and consumed.
According to our statistics of the five systems in metallurgy, mining, agricultural, coal, electric power and building materials, as well as the mechanical department vehicles, tractors, construction machinery incomplete statistics, estimates of China's annual consumption of metallic materials amounted to more than 3 million tons.
Therefore, how to improve the strength and toughness of the metal wear-resistant materials have been pursuing.
Experimental and Materials The chemical composition of the test cast steel.
Acknowledgement It is a project supported by the Heilongjiang Natural Science Foundation (E2010-40); the Department of Education Science and technology Project of Heilongjiang (11553111) of China.

Surface Morphology Studies on PBI membrane Materials of High Temperature for Proton Exchange Membrane Fuel Cells Zhenyu Zhai1,a, Yinggang Shen1,b*, Bin Jia3,c*, Yan Yin2,d 1Kunming University of Science and Technology , Kunming, China 2State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin, China 3Tianjin Internal Combustion Engine Research Institute, Tianjin, China azhaizhenyu1986@gmail.com, b*shenyinggang@163.com, c*jiabin@cleanengines.com, dyanyin@tju.edu.cn Keywords: PBI membrane; AFM; high temperature PEM fuel cell Abstract.
The lateral force image can shows the distribution of different materials or phases in the membrane.
It can be seen that before acid treatment, the sample surface materials distribute uniformly.
Journal of Power Sources 160(2006) p.872-891 [3] M.Geormezi, V.Deimede, J.K.Kallitsis, S.Neophytides.
Chinese Journal of Applied Chemisrty.Vol.23(2006) p.697-703 [6] Q.Li, R.He, J.O.Jensen, N.J.Bjerrum.

The raw materials (recycled glass powder and ball clay) are characterised by Differential Thermal Analysis (DTA) and its composition is determine by X-Ray Fluorescence (XRF).
The chemical compositions of the raw materials are shown in Table 1.
Results and discussions Thermal analysis of raw materials.
Fig. 1 (a), the endothermic peaks appearing at 87 °C and 260 °C, whereas, in Fig. 1 (b) the endothermic peaks occurring at 87 °C and 254 °C which attributed to minerals dehydration of both materials.
Yahlizade: submitted to International Journal of Environmental Science and Engineering Vol. 1, 202-207 (2009)

Additionally, etching submicron features in insulating material such as SiO2 or materials masked with insulators, e.g., photoresistmasked polysilicon, are accompanied by feature charging effects caused by differences in electron and ion angular distributions.
Sethian: Level Set Methods and Fast arching Methods: Evolving Interfaces in Computational Geometry, Fluid Mechanics, Computer Vision and Materials Sciences (Cambridge University Press, Cambridge, UK 1998)
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Sawin: Journal of Vacuum Science and Technology Vol.
Lichtenberg: Principles of Plasma Discharges and Materials Processing (John Wiley & Sons, Inc. 1994)

Introduction β-cyclodextrin (β-CD) have been reported as the most widespread environmental materials in the last twenty years[1,2,3].
Acknowledgements We acknowledge financial support from Heilongjiang Education Department under contract number 11531073.This work was financially supported by the Natural Science Foundation of Heilongjiang Province NO.200806.
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