Search results

There are so many types of air entraining agent, local materials have very strong regional, what kind of air entraining agent can adapt to the local material, and how to influence the properties when added it?
Experiment materials and Experiment methods Experiment materials 1）Cement: MENGXI P·O42.5 cement, 28d compressive strength is 49.2Mpa, standard consistency water consumption is 28%, 0.08mm screen and residue on sieve is 0.4%, other indexes accord with standards. 2）Sand: Medium sand in KUNHE, fineness modulus is 2.63, and sediment content is 3.2%, clod content is 0.3%. 3）Gravel: Made in KUNHE, gravel, continuous gradation is 5-31.5.
Journal of TONGJI University, 2008, 36(3): 374-378.
Hohai University Journal, 2009, 37(5):602-605.
Chemical Building Material, 2000(2):39-41.

This contribution deals with theoretical study of possible types of bonds suitable for refractory materials with special attention on aluminous cement, its hydration, conversion and chemical changes due to elevated temperatures.
Types of Bonds Refractory materials can be characterized according to type of bond that provides solid link of filler and micro-filler.
Navrotsky Thermochemical insights into refractory ceramic materials based on oxides with large tetravalent cations, Journal of Materials Chemistry 15 (2005) 1883-1890
Science Publ., London (1983) [13] Tvarog, M., Fornůsek, J., 2014, Influence of Casting Direction on the Mechanical Properties of Cementitious Fiber Reinforced Composites, Advanced Material Research Vol. 982, pp.32-37
[18] Jogl, M., Reiterman, P., Holčapek, O., Koťátková, J., 2014, Proposal of Fire Resistant Composites with Application of Lightweight Aggregate Liaver, Advanced Materials Research, Vol. 1054, pp. 43-47

Introduction: In the past few decades, research in composite materials has gathered tremendous pace.
Materials used: Pineapple is a tropical plant and is economically very significant.
Journal of Materials Science. 34 (15) (1999) 3709-3719
Advanced Materials Research. 718-720 (2013) 63-68 [8] Mathur VK.
Composite materials from local resources.

The development of studies in high-entropy alloy.Journal of Functional Materials,2008, 39(7):1059-61
Microstructure, thermophysical and electrical properties in AlxCoCrFeNi(0≤x≤2) high-entropy alloys.Materials Science and Engineering B, 2009,163:184-9
Materials Letters,2007,61:2692-6
Materials Chemistry and Physics,2005,92:112-7
METALLURGICAL AND MATERIALS TRANSACTIONS A, 2004,35A:2533-6

Introduction The invention of M41S mesoporous molecular sieves by the Mobil scientists in 1992[1] has stimulated wide interest in the surfactant templated synthesis of mesoporous materials.
Table 1 Physical property of titanium-containing mesoporous materials and their photocatalytic activity for DBT oxidation.
Martín Palma: Applied Physics A: Materials Science & Processing, 79(3) (2004), p. 565 [4] B.Christian, G.
Tatsumi: Microporous Materials, 10 (1997), p. 259 [12] A.Bhaumik, T.
Wang, Journal of Dalian University of Technology 45 (2005), p.326 [17] M.

Polydiacetylens (PDA’s) have attracted considerable attention as candidates for materials in nonlinear optical applications.
PDA’s are promising optical materials since they have a large third-order nonlinear optical susceptibility in order of 10-7 esu in the single crystalline form and ultra fast response time [12].
Thanh: VNU Journal of Science-physics Vol. 26 (2010) pp.107-113
Oh: ETRI Journal Vol.26 (2004) pp.344-350
Journal Vol. 206 (2002)

is the shear yield stress of chip material, which is used to limit the maximum friction force.
Later, the deformation of chip material basically no longer increases.
Acknowledgements This work was financially supported by the National Natural Science Foundation (50975191), Technology Development Foundation of Taiyuan University of Technology.
[2] Jian-ying Guo, Ming Lv: Journal of Mechanical Strength Vol. 31(2009), p. 160-165.
Moufki: Internal Journal of Mechanical Sciences Vol. 50(2008), p.124-131

Then, the laser reflected by diffuse reflectance materials of the baffle is turned the high-energy laser into the safety laser.
So as to optimize the structure, different parts of the laser lighter use different materials.
Plasma Science and Technology.
Chinese journal of lasers.
Chinese journal of lasers.

Among the source is the emissivity of the electrode surface, is the reactive of metal materials spill.
The first case corresponds to the situation along the lateral face of the material where only cold gas is present, whereas, the forced regime is more suitable since this side of the material is generally cooled by water flow.
Acknowledgement This research was financially supported by the National Science Foundation (51277182).
Thermal plasma modeling [J].Journal of Physics D Applied Physics, 2005, 38(9):153-183 [8] Li He Ping, Chen Xi.
Journal of Engineering Thermo physics, 2001, 22(1):78-81

The fracture strength of material for certain micro-accelerometer structure have crucial implication for the operation.
Minute faults in interior and surface of structure is unavoidable due to material inherent factor and the fabricating process, which bring about minute cracks.
Weibull, a swedish physicist, proposed first this distribution when he studied material strength in 1939.
Acknowledgment This work was financially supported by the Major National Science and Technology program (2011 ZX0 3005-001) and the Laboratory program (ZHD201104).
Johansson, and J.Schweitz, Thin solid films, vol. 292, 247-254,1997 [2] Jiang Lili, Tang Jieying, Chinese mechanical engineering (Z), 212-214, 2005 [3] Lv Jinnan, Tang Jieying, Chinese Journal of functionals and devices, Vol.14, No.1 pp. 103-106, 2008 [4] Xingguo Xiong, Yu-Liang Wu, and Wen-Ben Jone, Material Fatigue and Reliability of MEMS Accelerometers, IEEE International Symposium on Defect and Fault Tolerance of VLSI Systems, 314-322, 2008 [5] Chen Jiading, Zheng Muqiao, Probability and Statistics, in chinese, the press of Beijing university, 2007 [6] Gregory T.A.