Search results

In ULS the effect of loads is increased by partial coefficient of reliability γF and the resistance of materials is reduced by partial coefficients of materials γM.
Tests of materials 30 tests samples were prefabricated during execution of the first set of the columns S1.
In spite of the fact that columns were fabricated with the same materials and the high attention for accuracy the differences of results are notable.
In Applied mechanics and materials, 2015, vol. 769, p. 294-301.
Journal of Composites for Construction ASCE march, April 2013.

For these reasons the article focuses on the experimental measurements of water transport in the newly develop building materials.
Advanced Materials Research Vol. 1025-1026. pp. 641-644. (2014)
Advanced materials research.
Kumaran, Moisture Diffusivity of Building Materials from Water Absorption Measurements.
Plagge, Interlaboratory Comparison of Hygric Properties of Porous Building Materials, In Journal of Thermal Envelope and Building Science, Vol. 27, 2004, pp. 307-325.

College of Materials Science and Engineering, Southeast University, Nanjing, China; a. achero@126.com, b. tyhao@yahoo.com, c. sunwei@seu.edu.cn, Keywords:flexural toughness;polymer-modified concrete;crack path Abstract: This paper studies how polymer alters the flexural toughness of concrete.
Toughness is the capacity of absorbing energy and deforming without damage under loading is the reflection of strength and ductility for materials.
Experimental design 1.1 Raw materials The CEM·II 52.5 Portland cement with density of 3100kg/m3 and specific surface area of 356 m2/kg was used as the main cementitious material.
Construction and Building Materials, 2009(23): 85-95 [2] Cavan Tasdemir, Mehmet A.Tasdemir, Nichoals Mills.
Combined effects of silica fume, aggregate type, and size on postpeak response of concrete in bending[J], ACI Materials Journal, 1999(1): 134~156 [3] HUANG Yu-bin.

Its basic method is to fabricate roll core using good ductile material, to make roll sleeve using high hardness and high wear-resistant material.
Back-up roll finite element analysis Roll material selection.
The roll sleeve and roll core material as follows: roll sleeve material: 4Cr5MoV1Si, roll core material: 35CrMo.
The properties of these materials in reference [3].
Acknowledgement Sustentation fund: Natural science foundation of Hebei (E2010001155) References [1] D.Y.Sun: China Utility Patent 200720138493.0 (2009) [2] Q.Dong: Cfhi Technology, (2008) No.1, P26-27(in Chinese) [3] H.M.Lu and Y.Y.Chen: Mechanical Engineering Material Properties Data Manual (China Machine Press, China 1994) [4] Iquchi, Takaaki, Yarita and Ikuo: ISIJ International, 1991,31(6):560~565 [5] D.Y.Sun, Z.H.Wei, H.F.Zhou and S.M.Xu, Applied Mechanics and Materials, v16-19, p 1203-1207(2009), e-Engineering and Digital Enterprise Technology VII [6] D.Y.Sun, Y.F.Zhang and X.W.Zha, in Applied Mechanics and Materials, edited by H.H.Tan / Trans tech publications, China: (2010) v37-38, p 166-170 [7] B.Yu, B.Zhou: Journal of Machine Design, (2008) No.3, P10~12(in Chinese) [8] X.L.Zheng: Quantitative Theory of Metal Fatigue (Northwestern Polytechnical University Press, China 1994)

The mesoporous materials are prepared by the sol-gel process with the use of agents drivers or templates that are responsible to guide the inorganic skeletal architecture formation.
The materials were calcined in static air at 823 K for 2 h to remove the polymer template and to obtain white SBA-15 powder.
The materials were called SBA-15 (TEOS) and SBA-15 (CCB) as synthesed with TEOS or with CCB.
Rodrigues: Journal of Natural Gas Chemistry Vol. 21 (2012), p. 722 [6] D.
Grisdanurak: Science and Technology of Advanced Materials Vol. 8 (2007), p. 110.

China 3 Taishun Institute of Polymer materials, Wenzhou , 325500 P.R.
Thus, there is a search for cheaper adsorbent materials such as clays and other natural materials to adsorbing Pb(II) ions.
Materials and methods 2.1.
Materials The pyrophyllite was procured from Taishun County(Wenzhou,China).
References [1] Babel, S., Kurniawan, T.A.: Journal of Hazardous Materials B97(2003), p.219-243

Study on the Property of Bi2(Mg2/3Nb1.1833Sn0.15)O7 Dielectric Ceramics Doped With Li2CO3 Haitang Hua1,a, Xinyou Huang1,b, Zhiwen Zhu1,c, Yinqun Hua1,d,Yan Li2,e 1School of Materials Science and Engineering,Jiangsu University,Zhenjiang, Jiangsu,212013, China 2Shantou High-New Zone Songtian Enterprise CO.
Bismuth-based pyrochlore is an emerging class of ceramic material, and it have been made ​​a systematic study internationally.
Experimental The Li2CO3 doped Bi2(Mg2/3Nb1.1833Sn0.15)O7 based dielectric ceramics was prepared by the traditional solid state method, and the main raw material were the analytical reagent of Bi2O3(99.9%), MgO（99.9%）,Nb2O5（99.9%）, Li2CO3(99.9%),SnO2(99.9%).The Li2CO3 doped Bi2(Mg2/3Nb1.1833Sn0.15)O7 based main crystal phase powder was synthesized according to chemicalformula（Bi2-xLix）(Mg2/3Nb1.833Sn0.15)O7(x=0，x=0.025，x=0.05，x=0.075，x=0.1).The raw materials according to the stoichiometric ratios were weighed and placed in a planetary ball mill milling 6h with agate balls and distilled water for the milling media.
Yin: Journal of Inorganic Materials(in chin.)
Vol. 94(2009), p. 162908 [8] N.R.Yang: Inorganic Non-metallic Materials Test Methods(Wuhan: Wuhan University of Technology Press, 1990) (in chin.).

In this paper, in-situ synthesized WC reinforced Fe-based composite was successfully fabricated with tungsten powder and graphite as main raw materials.
Materials and methods The test matrix material was Q235 steel with dimensions of 80 mm×40 mm×10 mm, washed with alcohol after surface mechanical pretreatment to remove oil and rust pollution.
The raw materials contain 50wt% tungsten and the atom ratio of W and C was 1:1.5.
Acknowledgements This work was supported by NSFC (51271158), natural science foundation of Hunan province (10JJ6078) and postgraduates research innovattion of Hunan province (CX2012B269).
Durand-Charre: International Journal of Refractory Metal & Hard Materials Vol. 26 (2008), p. 372-382 [3] Yu Zhang, Minlin Zhong and Wenjin Liu: Heat treatment Vol. 30(30) (2005), p. 1-5 “In Chinese” [4] Libin Niu , Yunhua Xu and Xiaogang Wang: Sur. & Coat.

Fatigue Life Prediction of Isothermal Forging Dies Based on Average Strain Method Jun Cai 1, a , Fuguo Li1, b , Min He 1, c, Peng Chen2, d 1 School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, China 710072 2 The First Aircraft Institute of Aviation Industry Corporation of China, Xi'an, China 710089 a caijun0116@163.com, bfuguolx@nwpu.edu.cn, cheminbox@sohu.com, dchildpal@gmail.com Keywords: isothermal forging die; average strain method; die life Abstract.
Introduction Isothermal forging is a main forming method of aerial materials difficult to deformation, such as Ti alloy, P/M superalloy and intermetallic compound [1, 2].
However, the damage of materials is different on cyclic plastic zone.
Superalloy K403 is used as die material, die and environment temperature are both 900℃.
Li: Journal of Mechanical Strength, 24 (2002), p. 104

Experimental Raw Materials.
At the same time, the toughness indexes increased and reached the ideal flexural toughness indexes I5=5, I10=10 and I20=20 of elasto-plastic materials.
Li, Flexural toughness of steel fiber reinforced high-strength concrete, Journal of Building Materials, 1 (2003) 95-99
Song, Binary superposition mix design method for SFRC Part I: principle and evaluation, Advanced Materials Research, Vols. 168-170 (2011) 2186-2190
Song, Binary superposition mix design method for SFRC Part II: flexural strength and toughness, Advanced Materials Research, Vols. 168-170 (2011) 2191-2194