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Online since: March 2013
Authors: Semra Kurama, Elif Eren Gültekin, Scott Sorensen, Gail Stultz
Non-destructive techniques are rapidly used to control materials’ properties during the manufacturing and using.
Due to the processing differences, water absorption (%), apparent porosity (%) and mechanical properties of these tiles changed and the inspected properties measured conventional techniques.
One of basic ways of measuring elastic properties by wave methods is also by resonance vibration of specimens.
Though porcelain tile production is increasing, stoneware products obtained by last single firing still have the largest share in production, the body or substrate being the determining factor in the mechanical and technological properties of the resulting ceramic tiles.
Schematic of maxima of properties such as strength that is dependent on porosity decreases with increasing firing temperature or time (Fig. 4).Thus, most mechanical (and other) properties increase with decreasing porosity, i.e., with increased sintering [2].
Online since: October 2006
Authors: Saul Sánchez-Valdés, M.L. López-Quintanilla
The relative influence of each compatibilizer was observed from structural analysis by WAXD, and mechanical properties.
Recent studies have focused on the uniform dispersion of modified clay particles in the nonpolar matrix to increase their physical and mechanical properties.
In thermoplastic-based nanocomposites, the mechanical properties of the material may vary strongly, depending on the nature of the interactions between the matrix and filler.
The films were used to measure oxygen barrier properties.
However the percent of change for these samples was also around 40% indicating that the clay was not significantly affecting the degradation of LLDPE.
Online since: March 2021
Authors: Khairunisa Muthusamy, Nabilla Mohamad, Nur Syahira Hanim Kamarul Bahrin, Rahimah Embong, Fadzil Mat Yahaya
Effects of Riyadh cement industry pollutions on some physiological and morphological factors of Datura innoxia Mill.
Zheng, Mechanical and thermal properties of polypropylene (PP) composites filled with modified shell waste.
Darwish, Characterization of bio-filler derived from seashell wastes and its effect on the mechanical, thermal, and flame retardant properties of ABS composites.
Darmayanti Mechanical properties of seashell concrete.
Neville, Properties of Concrete, Longman London, 2011 [20] B.
Online since: July 2014
Authors: Wen Ya Ye, Xiao Qing Wu
Cracking of concrete structures is one of the important factors that affect durability and functionality.
Cracking Description and the Crack Mechanical Analysis Cracking Description.
To quickly determine the cause of the cracking, we conducted the analysis of these factors with exclusion method.
Table 2 Concrete mixture and properties of pier Part Grade of concrete Theory admixture Cement Fine aggregate Coarse aggregate additive water pier C20 1 2.12 2.92 0.01 0.59 Bearing tray C25 1 1.83 2.74 0.01 0.52 Part Grade of concrete Construction admixture amount per cubic (kg) Cement Fine aggregate Coarse aggregate additive water pier C20 356 754 1041 3.56 210 Bearing tray C25 394 720 1081 3.94 205 The piles were poured with two round-ended steel formworks and 1.8cm thick bamboo plywood in the middle section.
Reinforcing method Because the bridge pier is C20 grade plain concrete structure as a compression member, the crack depth does not exceed half of the pier thickness, generally the cracks do not have much impact on the structure mechanical performance, does not affect services.
Online since: April 2005
Authors: Ramesh Chandra Agarwala
Such coatings are reported to provide excellent physical and mechanical properties.
Introduction EL coatings consisting of metal/metal plus metalloid/non-metals are reported to provide excellent physical and mechanical properties.
Fig.1 Sectional view of EL coatings on Fig.2 SEM of EL Ni-23.4 at % P deposit both sides of substrate In another study [13, 14], the factors affecting the deposition rates and the crystallization behavior of amorphous Ni-B EL coatings have been investigated.
Nano coatings are found to have better adhesion with the substrates and hence improved mechanical and physical properties.
Agarwala, "Factors influencing the deposition rate of Ni-B Electroless Film, Z.
Online since: January 2013
Authors: Yu Qiang Cai, Na Xing
acai2509@sohu.com , b08116297@bjtu.edu.cn Keywords: revolving sealing; influence factor; microstructure; starting friction torque Abstract.
This problem has become a key factor restricting the application of magnetic fluid rotation sealing.
The length and the deviation of the chains in the flow will therefore be determined by the equilibrium between the two torque, the magnetic one and the mechanical one, acting on the chain [4].
is a scale factor increases with the decrease of temperature because the existing of chain-like structure.
So the big particles affect largely the rheological properties of magnetic fluids. 2 When a revolving shaft starting, the chains must be destroyed, so it eventually lead to the high starting torque.
Online since: June 2012
Authors: Ren Dang Yang, Rui Bin Wang, Meng Jiao Yu, Jie Guo, Fei Yang
The water bath treated membrane could store for months with its properties stable. 3.2.2 The impacts of the concentration on the properties of the PMIAFM (a) (b) Fig. 4 (a) The impacts of the concentration of the PMIA on the air permeability and the bursting strength of the PMIAFM; (b)the load-displacement curve of the PMIAFM (a) prepared.
The air permeability directly affects the flow resistance of the filter materials.
When the applied voltage was as low as 18kV, the film got the largest tensile strength 109.24MPa,. 4 Conclusions In all of the factors that affect the morphology, the mechanical properties of the PMIAFM, the concentration of PMIA, and the applied voltage have great impact: within the concentration range spinnable, the lower concentration means the finer fiber; the applied voltage beyond the appropriate range would cause the instability of the jet, and 15-25kV is suitable.
Research on dynamic mechanical properties of poly (m-phenyleneisophthalamide) paper [J].
Study on the properties of China’s meta-aramid paper honeycomb [J].
Online since: February 2011
Authors: Xian Yu Jin, Nan Guo Jin, Qiang Li
The model was based on equilibrium equations on which load-bearing capacity of R.C. column at given time (year) can be predicted considering the overall deteriorations of rebar, concrete section, mechanical properties and bond behavior between corroded reinforcement and concrete.
It not only reduces the bar section and the mechanical properties of reinforcement, but also generates concrete cracking and changes bond strength between reinforcement and concrete due to the expansion of corrosion products.
Synergistically, load-bearing capacity and mechanical behavior of RC elements are affected by the corrosion of reinforcement [1].
Generally speaking, the previous studies mainly concentrated on the mechanical properties of corroded members at a given time or given corrosion.
Few models consider the overall deteriorations of rebar and concrete section, materials mechanical properties and the relationship of bond-slip.
Online since: February 2013
Authors: Anna Keskisaari, Jukka Martikainen, Timo Kärki
The study concerns the welding of wood-plastic composites and the impact of their properties on weldability.
Various materials were tested to find out which material properties affect in which ways.
The purpose of the study was to obtain information on how different material properties affect the welding processes and which of the processes are the most promising methods for WPC joining.
According to Baudrit et al., the additive seemed to improve the strength properties.
Hot plate welding has remarkably better properties, however.
Online since: September 2020
Authors: Lyubov Morgun, Vladimir Morgun, Alla Bogatina, Aleksei Revyakin
The gas inclusions factors of influence on the dispersion parameters and, as a consequence, the aggregative stability of foam mixtures, are ranked.
Improving the quality of their industrial production and expanding the operational capabilities can take place only with a scientific understanding of the formation laws of the structure which properties substantially depend on the following factors: - conditions for the raw materials’ homogenization [2]; - mass transfer intensities during the viscous bonds’ predominance period between dispersed gas and solid phases [3]; - individual features of the phase transition from a viscous to an elastic state depending on the raw mixes’ composition [3].
Sychev, Chemistry of solidification and the formation of strength properties of cement stone, Cement. 9 (1978) 9-13
Nagorsky, Influence of the shape of dispersed aggregate particles on the mechanical properties of foam concrete mixtures, CATPID-2019 IOP Conf.
Shmitko, Management of technology processes, structure and properties of concrete, GASU, Voronezh, 2002
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