Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: June 2014
Authors: Jing Song, Jing Kui Qu, Tao Qi, Chang Qiao Zhang, Jing Chong Liu, Yu Wang, Qian Qian Wang
Zirconium oxychloride octahydrate (ZrOCl2·8H2O), an important basic chemical product, is the main raw material for zirconium-based chemicals, such as zirconium oxide, zirconium sulfate, and zirconium carbonate [2].
Experimental Materials.
Then the materials were mixed with the remaining NaOH and fused again.
Journal of Alloys and Compounds: 577-580.
Takahashi, Science and Technology of Ceramin Fuel Cells, Elsevier, pp. 366–376
Online since: September 2013
Authors: Zhi Yong Li, Yi Gang Wang, Pei Yu Dong
In ECM, material is removed to ionic form, widespread attention should be paid to research on how to improve the machining process stability as well as improve machining precision [3-4].
The process parameters used in the experiments are as follows: the electrolyte is 100g/L NaNO3 solution, the workpiece material is stainless steel plate with thickness of 0.1mm, feed rate 0.6mm/min.
The process parameters employed in the experiments are as follows: the electrolyte is 100 g/L NaNO3 solution, the workpiece material is stainless steel plate with thickness of 0.1mm, feed rate 0.6 mm/min.
Acknowledgments The work was financially supported by the National Natural Science Foundation of China (No. 50905101), Shandong Province Natural Science Foundation (ZR2010EL005) and Support Plan for Youth Staff of Shandong University of Technology.
Chinese Journal of Aeronautics 23(2010): 578-584.
Online since: April 2014
Authors: Goran Dražič, Ladislav Kosec, Stjepan Kožuh, Borut Kosec, Štefan Šavli, Mirko Gojić
The Effect of Long-Term Annealing at Elevated Temperature on Microstructure and Hardness of Heat-Resistant Steel Ladislav Kosec1, Mirko Gojić 2, a, Stjepan Kožuh2, b, Borut Kosec1, c, Goran Dražić3, d and Štefan Šavli4 1University of Ljubljana, Faculty of Natural Sciences and Engineering, Aškerčeva 12, 1000 Ljubljana, Slovenia 2University of Zagreb, Faculty of Metallurgy, Aleja narodnih heroja 3, 44103 Sisak, Croatia 3Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia 4Iskra avtoelektrika, Polje 15, 5290 Šempeter pri Gorici, Slovenia agojic@simet.hr, bkozuh@simet.hr, cborut.kosec@omm.ntf.uni-lj.si, dgoran.drazic@ijs.si Keywords: heat-resistant steel, annealing, sigma phase, hardness, fracture surface Abstract.
Wang, The evolution of precipitates of 22Cr-25Ni-Mo-Nb-N heat-resistant austenitic steel in long-term creep, Materials Science and Engineering A527 (2010) 4424-4430
Wu, Discussing the precipitation behaviour of σ-phase using diffusion equation and thermodynamic simulation in dissimilar stainless steels, Journal of Alloys and Compounds 506 (2010) 2, 820-825
Holjevac-Grgurić, T.: The effect of solution heat treatment on microstructure, fracture resistance and hardness of AISI 310S steel, Proceedings of MATRIB 2010, Croatian Society for Materials and Tribology, 23-25-06.2010., Vela Luka-Korčula, Croatia, 2010, pp. 123-129
Colás, Microstructural analysis of heat-resistant welded pipes, Materials Characterization 51 (2003) 1, 21-27.
Online since: June 2020
Authors: Parames Chutima, Siripan Nilpairach, Wansika Sirimongkol
Defect Reduction in Forming Process of Fired Clay Floor Tiles by Six Sigma Approach Wansika Sirimongkol1,a, Parames Chutima1,2,b* and Siriphan Nilpairach3,c 1Industrial Engineering, Faculty of Engineering, Chulalongkorn University, Thailand 2The Royal Society of Thailand 3Metallurgy and Materials Science Research Institute, Chulalongkorn University, Thailand awansika.s@chula.ac.th, bcparames@chula.ac.th, csiripan.n@chula.ac.th Keywords: Defect Reduction, Fired Clay Floor Tiles, Six Sigma Approach Abstract.
The rough surface is a major cause of the defect in the forming process of fired clay floor tiles causing high production costs in terms of wages and raw materials causing the company to lose a lot of money.
Journal of operations Management 26, no. 4 (2008): 536-554
In IOP Conference Series: Materials Science and Engineering, vol. 215, no. 1, p. 012007.
Online since: May 2007
Authors: Peng Huai Fu, Hai Yan Jiang, Wen Jiang Ding, Xiao Qin Zeng, Li Ming Peng
The experiment material was solution treated at 540℃ for 6h followed by water quench and then subsequently aged at 200℃.
Tensile testing was performed in Zwick Material testing machine at ambient temperature.
Ebert: Materials Science and Engineering A, 302 (2001), p.37-45 [2] I.M.Baghni, et al.: Trans.
Noble: Journal of the Less-Common metals, 30(1973), p.63-74 [4] W.
Kim: Materials science and engineering A, 180 (1994), p.637-640 [5] Peng liming, Fu penghuai, Jiang haiyan, et al.: The microstructure and mechanical properties of low pressure die cast AM50 magnesium alloy, ICM2006, accepted [6] Fu penghuai, Peng liming, Jiang haiyan, et al.: Zr-containing precipitations in Mg- 3wt%Nd -0.2wt%Zn -0.4wt%Zr alloy during solution treatment at 540℃, ICM2006, accepted Crack along grain boundary Crack inside grains Crack along grain boundary Intergranular Transgranular (a) (c) (b)
Online since: May 2012
Authors: Hong Guo Zhang, Pei Wen Hao, Xiu Shan Wang
This material is now widely used in the highway engineering.
Once the advantages of them are combined, the performance of the fiber reinforced concrete materials will be significantly improved.
The Property of Raw Material The concrete we used is ordinary Portland cement P.O.42.5R.
Road Performance Research on High Modulus Asphalt Concrete Additive Calcium Sulfate Whisker [J].Journal of Chongqing jiaotong university(natural science). 2011(06), 1131-1134 [3] JTJ 053-94, Cement Concrete Testing Regulations in Highway Engineering[S]
Transportation Science and Technology of Heilongjiang. 2004(11),3-7 [5]Chen Hong-you.
Online since: May 2011
Authors: Xin Rong Zhu, Wei Liu, Liu Yang, Jia Ping Liu
Fig. 1 Lay-out of typical building Table 2 Main configurations of building envelope and material thermal performance Building envelope Main materials d [㎜] λ [W/㎡·K] S [W/㎡·K] Roof polystyrene board 50 0.042 0.35 reinforced concrete 200 1.74 17.2 External wall polystyrene board 50 0.042 0.35 cavity block 190 0.58 7.52 Floor slab reinforced concrete 200 1.74 17.20 Sensitivity Analysis of Parameters Simulation Software.
This shows that bigger temperature differences between day and night require thermal storage materials to play a better role in heat storage.
(2) In terms of thermal comfort, a good building envelope thermal storage performance ensures a better cooling effect for a night ventilated building, while larger temperature difference between day and night requires thermal storage material to play a better role in heat storage
Acknowledgements This work was financially supported by the National Natural and Science Foundation of China (50978210),Special Research projects of Shaanxi education office(09JK555) and Science and Technology Fund for Talented Person of Xi'an University of Architecture and Technology(RC1030).
Vol. 36( 2004) p.1287–1297 [3] Yiwen Jan, Yi Jiang: Journal of HVAC, Vol.32 (2002) p.7–10 ( In Chinese) [4] Baruch Givoni: Energy and Buildings, Vol.28 ( 1998) p.25-32 [5] Baruch Givoni: Energy and Buildings, Vol.18(1992) p.11–23 [6] V.Geros ,M.Santamouris, et al: Energy and Buildings.
Online since: October 2004
Authors: Zheng Yi Jiang, Hong Tao Zhu, Wei Hua Sun, A. Kiet Tieu
Experiment Materials.
Beynon: Modelling & Simulation in Materials Science & Engineering.
Zhu: Journal of Materials Processing Technology, Vol. 140 (2003), p76 [6] W.
Lenard: Journal of Materials Processing Technology, Vol. 88 (1999), p105 [11] Y.
Lenard: Journal of Materials Processing Technology, Vol. 121 (2002), p60 [12] M.
Online since: October 2013
Authors: Jia Hua Dong, Cheng Kang Gao, Wei Guang Zhu
The analysis shows that: in comparison with coal-fired generation, wind power generation saves more energy and reduces emissions of pollutants markedly; the main energy consumption comes from production of raw materials, which takes 79.3% of the total energy consumption throughout the life cycle.
Table 2 Materials and demand list of turbine parts [6] Main units Subparts Total weight(t) Materials(t) Engine room Engine shell 2 Fiberglass :0.8 Resin :1.2 Basic frame 10.5 Steel:10.5 Spindle 6.1 Steel :5.95 Transformer 5 Silicon :0.15 Steel :3.3 Copper:1.5 Generator 6.5 Copper:1.2 Steel :4.29 Silicon:2.21 Rotor Gear box 16 Steel :16 Blade 19.5 Fiberglass :19.5 Wheel hub 14 Steel :14 Pitch change Support 0.31 Fiberglass :0.12 Resin :0.19 Basis Foundation 725 Concrete:700 Steel:25 Tower frame Basic ring 15 Steel:15 Three-segment Tower frame 143 Steel:143 Manufacturing stage.
According to material composition of every subpart (Table 2), energy consumption and environmental emission of producing one-ton principal raw materials (Table 3), total energy consumption and environmental emission in manufacture stage (Table 4) of wind power generation can be calculated.
Environmental Science & Technology,2009,5
Journal of China Coal,2009,01:133-138
Online since: November 2010
Authors: Yan Ju Ji, Shuang Li, Feng Xiang Wang, Gang Fu, Jun Qing Zhao
Investigation of optical properties of ZnO Films deposited by RF magnetron sputtering Shuang Li, Feng-xiang Wanga, Gang Fu,Yan-ju Ji and Jun-qing Zhao School of Science, Shandong Jianzhu University, Jinan 250101, China achls0526@sdjzu.edu.cn Keywords: ZnO thin films; RF magnetron sputtering; Optical waveguide; X-ray diffraction.
Rutherford backscattering (RBS) is a standard technique in the analysis of materials, which is used for quantitative compositional analysis of thin films, such as layered structures, defect distribution and quantitative compositional measurements of surface impurities of heavy elements on substrates of lighter elements, including impurity profiles, damage depth profile, surface peak, and lattice location of dopant atoms.
It was found from the measured results that the indexes refractive of the films are less than of the bulk materials and under the condition of lower sputtering pressure, the indexes refractive of ZnO films is more closer to bulk crystal Refractive index (no = 1.98, ne = 2.00 at a wavelength of 633 nm) as the thickness of ZnO films gradually increase.
Acknowledgment This work was financially supported by the following funds: (1) Shandong Research Award Fund for Young Scientists (2006BSB01447); (2) Natural Science Foundation of Shandong Province (ZR2009FM031).
Jang et al.: Journal of the European Ceramic Society.