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Online since: October 2007
Authors: G.S. Abashidze, N.M. Chikhradze, Fernand D.S. Marquis
BASALT REINFORCED PLASTICS: SOME OPERATING PROPERTIES G.
Introduction Basalt fiber by a number of physical-mechanical characteristics exceeds a fibers "E" (glassy nonalkaline).
Naturally there are no data about technical properties of BRP.
Since presence or absence of mechanical field of forces effects significantly on the intensity of the variation of the properties of BRP, affected by corrosive media, these two cases we shall consider individually.
Calculations, carried out for the purpose of the use of the method of multiply of the coefficients, considering separately an effect of aggressive media and temporal factors on an ultimate strength of BRP, have shown that this method in this instance is unsuitable.
Online since: February 2011
Authors: Qing Xi Hu, Hai Guang Zhang, Yuan Yuan Liu, Jie Huang, Zhao Fu Chi
Bubbles and craft parameters in vacuum casting are the key factors to the quality of products.
Bubbles in reaction and craft parameters such as pressure, velocity and casting time in vacuum casting are the main factors that affect the quality of products.
In the automatic control system of vacuum casting, the optimal craft parameters should be provided to the craft process according to the material information and product properties searched by the operator.
We can get the information and properties from ACCESS database.
Bubbles in reaction and craft parameters are the main factors that affect the final quality of vacuum casting products.
Online since: November 2011
Authors: Heng Lin Yang, Zhong Ian Tian, Li Song Zhang, Xiang Zhen Yan
The criterion started from the properties of intact rock and then introduced factors to reduce these properties on the basis of the characteristics of joints in a rock mass.
It not only considers the mechanical properties of the rock, but also uses GSI to modify the rock's deformations and strength parameters.
Hoek-Brown criterion can be expressed as follow [7]: (1) Where , are maximum and minimum principal stress; is uniaxial compressive strength for intact rock; is rock constant; , are the coefficient of rock properties.
It takes the structure face's strength, coal and rock mass strength and a variety of factors into account.
If coal and rock mass is seriously affected by the structure, the GSI is among 45 to 55.
Online since: July 2007
Authors: A.N. Aleshin, Sergey V. Dobatkin, Alex M. Arsenkin
One of them is the affect of triple junction drag on grain boundaries motion.
It is established that long-time low temperature pre-annealing reduces the grain growth rate in following high temperature annealing by a factor greater than two.
Ultra-fine (or submicrocrystalline ) materials have outstanding mechanical properties: very often these materials manifest both high strength due to small size of their grains and also high plasticity.
At high temperatures (more than 0.4Tm where Tm is the melting point) ultra-fine grained materials lose their unique mechanical properties due to catastrophic character of grain growth.
In accordance to [5], the main defect affecting GB motion is a triple junction line.
Online since: November 2016
Authors: Dony Poulose, Binu M. Issac, Vipitha Varghese
Load duration and temperature are the most important factors affecting the strength of laminated glass.
It is concluded that the laminated glass beams have very good mechanical properties and structural adequate structural safety and the beam can be used in load bearing constructions replacing metallic beams.
Giuseppe Campione et al. [6] studied the level of connection between the glass foil and the mechanical properties of laminates glass composites.
The static properties of different polymers are different.
Sunith Babu L [11] examined the impact properties of the laminated composites.
Online since: August 2009
Authors: Hong Ye, X.B. Zhang, Y.H. Fan, Ke Chen, Z.F. Xue
And laser cladding cermets coating on metal surface could get especially higher properties [1-3].
Rare earth elements have purify, modificating and alloying effects to many kinds of metals, which could especially improve mechanical, hot-working, high temperature oxidation resistance, abrasion resistance and corrosion resistance properties of metallic materials.
In these experiments, rare earth elements were added into laser cladding made nickel based metal-ceramic composite coating to increase its mechanical and anti-cracking properties.
Cladding layer could be divided into three regions: cladding region, bonding region and heat-affected zone of the substrate.
Rare earths of CeO2 could increase wearing properties of the laser cladding layer.
Online since: December 2012
Authors: Guo Ning Liu, Hua Dong Zhao, Qian Qian Guo, Li Xin Wang, Sheng Gang Ma
In addition, for the majority of the organic polymeric materials, their excellent mechanical properties under laboratory conditions deteriorate rapidly under the corrosive or aggressive environmental conditions.
Obviously PET thin film here plays a role of functional layer for corrosion resistance by fully exploiting the excellent anti-corrosion properties of pure aluminum material.
Conclusions A composite structure, which consists of a fabricated composite with high anti-corrosion properties and stainless steel thin film / sheet, is manufactured in this work.
The properties of such a structure have the combination of the high tensile strength, low mass density of the composite, and the high stiffness of stainless steel material.
The corrosion products and mechanical properties of certain light aluminum alloys as affected by atmospheric exposure, Proceedings of the Physical Society of London, Vol.30 (1926) 15-25
Online since: April 2024
Authors: Esti Wahyu Widowati, Endaruji Sedyadi, Astri Arnamalia, Dodi Irwanto
Compounds in red ginger entering into the main polymer chain will affect the thickness, tensile strength, elongation, Young's modulus, and WVTR so that the physical and mechanical properties of the edible film are getting better.
Then the addition of glycerol participates in improving the physical and mechanical properties of making edible films from potato starch.
Similar studies observed changes in mechanical properties when glycerol was added (Vlacha, et al., 2016).
Influence of Chitosan Concentration on Mechanical and Barrier Properties of Corn Starch/Chitosan Films.
Effects of Cinnamon Essential Oil on The Physical, Mechanical, Structural, and Thermal Properties of Cassava Starch-Based Edible Films.
Online since: June 2017
Authors: Ya Zheng Liu, Li Chong Zhang, Xin Li Wen
Factors influencing the impact energy include grain size, inclusion, segregation, etc.
The purpose of this study was to determine the most sensitive factor affecting grain growth between heating temperature, holding time and precipitates.
Abnormal grain growth can severely deteriorate mechanical property, especially for low temperature impact toughness.
Lee, Enhancing mechanical properties of a low-carbon microalloyed cast steel by controlled heat treatment, Mater.
Burke, Some factors affecting the rate of grain growth in metals, Trans.
Online since: May 2012
Authors: Huan Wang, Wen Fang Zhang
The element has mechanical properties of the composite material.
Test for property parameter needs to consider size effect and reflect the construction way.
It means the shape of elastic or hardening segment is stable, but the shape of softening segment is affected by related factors.For simple sake and statistical average, the equation of >1 segment is adopted as(see Fig.1) (4) Stress and sum strain are dimensionless in the above equations.
The skeleton shape is usually affected by lateral constraint, loading mode and block category.
The experimental research of brick masonry mechanical behaviors.
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