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This study aims at ascertaining the importance of Post Welding Heat Treatment (PWHT) in achieving the required hardness in creep-strength enhanced ferritic (CSEF) materials.
From the analysis of 12 projects of power plant construction around the world (8 Combined Cycle PP, 3 Coal and 1 Nuclear PP), it is noted that several CSEF materials are being used.
The most significant among these materials is alloy steel 9Cr-1Mo, Grades 91.
The choice of this material is due to its improved and exceptional properties compared to other materials with same diameter and thickness.
,"Microstructural and Mechanical properties of 9 Cr-1 Mo steel weld fusion zones as a funtion of weld metal compositon", Journal of Material engineering and Performance, pp. 1000-1004 (2009) [8] Shibli, A., Starr, F.

Computational Formula of See Back Effect Potential Difference , S1 and S2 are See back coefficients of two materials respectively.
The test data of thermoelectric generation performance are obtained through comparative tests so that methods to improve this device from the aspect of materials and generating mechanism are put forward so as to reach better generating performance and the maximum generated output.
Journal of Wuhan University of Technology 2(3):122-124 [3] Li.
China Engineering Science 5(5):355-358 [6] Venkatasubramanian R, Silvia E, Culprits T, et al (2001) Thin-film thermoelectric devices with high room-temperature figures of merit.
P. et al (2009) Feasibility Study of Application of Industrial Exhaust Heat in Thermodynamic Generation Guangxi Journal of Light Industry 7(8):912-916

In 1990’s, Mitsubishi Corporation of Japan has manufactured the auto parts with composite materials of waste paper recycled fiber and polypropylene.
References also reveal that the biologically degradable plastic composite material prepared from waste paper recycled fiber and polylactic acids can be used as the auto interior decoration parts, household appliances shell and so on.
Materials and Methods Experiment materials.
Acknowledgements This work was financially supported by following foundations: the Hunan provincial college students’ research-oriented learning and innovative experiment project and college students’ science and technology innovation fund project of Central South University of Forestry and Technology.
References [1] J.Zheng, H.Pang, Y.Chen: Chemical Materials for Construction Vol.24 (2008), p.1-4 [2] Y.Cao, K.Goda, H.Chen: Chinese Journal of Materials Research Vol.21(2007), p.119-120 [3] C.Chuai, S.Li, Y.Lin: China Plastics Vol.14(2000), p.23-26 [4] C.Liu, R.Sun, J.Ye, A.Zhang: Journal of South China University of Technology Vol.34(2006), p.96-100 [5] A.K.Mohanty, M.Misra, G.Hinrichsen: Macromolecular Materials and Engineering Vol.276 (2000), p.1-24 [6] A.K.Mohanty, M.Misra, L.T.Drzal: Journal of Polymers and the Environment Vol.10(2002), p.19-26

GUAN: Journal of Mechanical Strength, VOL. 30 (2008), No.2, pp.301-304
[4] Van den Bosch, M.J., et al.: Journal of Materials Processing Technology, VOL. 209(2009) No.1, pp.297-302
CHAI: Journal of Nanjing University of Aeronautics &Astronautics, VOL. 40(2008) No.4, pp.442-446
JIANG: A Pressurized Blister Test Model for the Interface Adhesion of Dissimilar Elastic-plastic Materials (MS., Xiangtan University, China 2008), pp.19-22
Zhou: Materials Science and Engineering, VOL. 501(A) (2009), pp.235-241.

Study of mechanical properties and fracture mechanism of a new high-temperature alloys ZHANG dong-xu1, a LIU da-shun2,b and ZHU xi-ping3,c 1Advanced Materials Test Center,Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an 710072, China atonyjay2046@qq.com,b327442343@qq.com,czxpzxp@nwpu.edu.cn Key words: superalloy, argon-arc welding, high temperature creep, high temperature tensile, fracture surfaces analysis Abstract: GH3230 is a new type of superalloy,it is the first study about it.
Materials and experimental Materials The test material GH3230 is after the treatment of cold-rolled and solution heat treatment, and the chemical composition is shown in Table 1.
High-temperature creep test Test results of GH3230 base material and weld joint in a high-temperature creep are shown in table 3.
It shows that the deformation of welded joint is more uniform and smaller deformation than the base material in the process of high-temperature tensile.
Sun，Failure estimation of TIG butt-welded Inco718 sheets at 620℃ under creep and plasticity conditions[J],Computational Materials Science, 2006, 35(1):35-41 [2] TC4 titanium alloy electron beam welded joints high temperature performance and organizational[J],Welding Journal,2007,28(10):49-52 [3] A nickel-base single crystal superalloy tensile, durable performance and organizational evolution[D],Institute of Metal Research, Chinese Academy of Sciences,PhD thesis,2002 [4] A.A.Hopgood,J.W.Martin.The creep behaviour of a nickel-based single crystal superalloy[J], Materials Science and Engineering,1986,82:27-36

Modified Sol-gel production of Nano SDC20 Materials S.
However, major constraint is the selection of materials for commercial SOFC, which are operated over a temperature of 1000 oC.
Performance of SOFC depends on electrolyte materials.
Cerium nitrate hexa hydrate Ce (NO3)3 6H2O,(Alfa acer, 99.8% purity) and samarium nitrate hexa hydrate Sm (NO3)3 6H2O (Alfa acer, 99.8% purity) were used as starting materials.
Moceanb, Sol–gel production   of zirconia        nanoparticles with a new organic precursor, Chemical Engineering   Science, 61 (2006) 7831-       7835

The Effect of the Operational Conditions on the Quantitative Leak Rate of Leak Detectors Yong-Hyeon SHINa , Seung Soo HONGb , In Tae LIM c and Kwang Hwa CHUNGd Center for Vacuum Technology, Korea Research Institute of Standards and Sciences, Doryong-dong 1, Yousung-gu, Daejeon, 305-340, Rep. of KOREA a yhshin@kriss.re.kr, bsshong@kriss.re.kr, citlim@kriss.re.kr, dkhchung@kriss.re.kr Keywords: Leak, Leak test, Leak rate, Leak detector, Sniffer.
The Korea Research Institute of Standards and Sciences has developed and maintained leak standards systems, and has accumulated much data on leak standards that have been disseminated during calibration and testing services.
Experience in calibrating leak detectors and in leak testing various test items at the Korea Research Institute of Standards and Science (KRISS) shows that repeatability cannot be guaranteed [6-8].
Hong et al.: Key Engineering Materials, Vol. 270 (2004), p. 1674
Shin et al.: Journal of the Korea Vacuum Society, Vol. 4 (1995), p. 135. 0 5 10 15 20 10 -6 1x10 -5 Scan speed : 0.4 mm/s Scan speed : 0.2 mm/s Leak rate(mbar.l/s) Distance(mm) 0 2 4 6 8 10 12 14 0 20 40 60 80 100 120 : Up : Down : Back : Left to right : Back & 45 o upper direction Rel. test leak rate[%] the clearance between the sniffer and the leak [mm]

Method Materials.
Type II heterostructures are more efficient because the redox reactions can take place on different materials.
Heterogeneous photocatalyst materials for water splitting.
Advanced Functional Materials, 18(13), 1922 -1928 [6] G.
ACS Applied Materials & Interfaces, 5(11), 4815–4820 [13] Akihiro Y, Dang.

The worldwide production of more than half of the material to be processed into sheet metal.
References [1] Liushun Hong, Fang Xiong, dragon early sheet metal forming technology and its development trends Mechanical Science and Technology, 2003: 15-20 [2] Xiaoxing Li, metal forming simulation research and application.
Journal of Materials Processing Technology, 1996,(1):19-26 [5] Weimin Li, xiuchun Lu, Zubai Liu, Influence of laser bending process the sheet thickness, Chinese Journal of Nonferrous Metals, 1999, (1) :39-44

Using corrugated bamboo strip can improve bond between these two materials even if bamboo strips have not been treated. 1.
One of the methods for improving the bond between these two materials is using Sikadur 32-Gel.
Ramana Reddy, Investigation on properties of bamboo as reinforcing material in concrete, International Journal of Engineering Research and Applications (IJERA), Vol. 2, Issue 1, Jan-Feb 2012, pp.077-083. [4] N.
Dorsano, Materials Characterization of bamboo and analysis of bonding strength and internal strength as a structural member in reinforced concrete, California Polytechnical State University San Luis Obispo, Materials Engineering, Senior Project, 2010-2011. [5] A.
Lakkad, Effect of water absorption on the mechanical properties of bamboo, Journal of Materials Science Letters 5, 303- 304,1986. [10] ACI Committee 318 (2005), Building Code Requirements for Structural Concrete and Commentary, ACI 318M-05, R10.2.5. [11] ACI Committee 318 (2005), Building Code Requirements for Structural Concrete and Commentary, ACI 318M-05, R11.2.1.1.