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Online since: December 2024
Authors: Brian Jumaquio Tuazon, Dan William Martinez, Daniel Moreno, Kim Janzel Obdin
The analysis also highlights that cooking temperature is the sole significant factor affecting thickness swelling,with boards produced at 180°C exhibiting the lowest swelling of 3.36% to 3.922% as shown in Fig. 6c.
Cooking temperature was the sole significant factor affecting thickness swelling, with boards produced at 180°C exhibiting the lowest swelling (3.36% to 3.922%).
Physical and Mechanical Properties of Particleboard from Bamboo Waste.
Physical and mechanical properties of particleboard bamboo waste bondedwith urea formaldehyde and castor oil based adhesive.
Physico-Mechanical Properties of Particleboards Produced from Macadamia Nutshell and Gum Arabic.
Online since: July 2014
Authors: Zhen Yang, Hang Qin, Zhi Hai Cai, Ping Zhang
Has better mechanical properties than the substrate; 3.
It combine the good toughness and processability of metal with the excellent wear resistance, corrosion resistance, high temperature performance and anti-oxidation properties of ceramic materials to obtain more excellent surface properties.
Process Parameters Laser cladding is a complex, dynamic and rapid melting - solidification process, the existing time of the melt pool is short, and the size is small, so selecting an appropriate process parameters has a direct impact on the cladding layer macro-morphology, microstructure, mechanical properties.
The cross section of laser cladding generally consists of cladding layer, transition zone and heat affected zone.
For a long time, crack mechanism, influencing factors and suppression methods were studied.
Online since: April 2021
Authors: Ivan N. Egorov, Svetlana I. Egorova, G.F. Lemeshko
Divergence between theoretical and experimental profiles was appreciated by R-factors and χ2.
Mechanical processing of particulate material in beater mill and processes of powder self-milling at intensive particle and aggregate motion render significant influence on structure characteristics of the powder affecting its features [18, 19].
Podgornaya, Study of influence of strontium hexaferrite powders milling duration on microstructure and properties of magnets based on them, Mat. of El.
Structure and magnetic properties of nanocrystalline alloys based on Nd2Fe14B obtained by various techniques., J.
Menushenkov, Structure and magnetic properties of strontium ferrite anisotropic powder with nanocrystalline structure, J.
Online since: May 2014
Authors: Sarunya Promkotra
Solid-like mechanical properties of 2D aggregated cluster are examined.
Experimental models on the macroscale are always more complicated than the small scale due to setting up the parameter of the crucial factors.
Physically, faults have less information in detail and very complicated by relatively factors of the fault plane [6].
Conclusions Direct measurements of the deformation properties of particle aggregates are performed by compressive stressing of model particle networks.
Microstructure changed in the bulk affected the local and regional scales of mechanics of the quake.
Online since: March 2013
Authors: Huang Yuan, Shuai Huang
Introduction Indentation technique has been developed for determining the mechanical properties of materials in small scale.
From instrumented indentation tests the micro-hardness, elastic modulus and other mechanical properties can be efficiently determined as reported in [1,2].
In Equation (2) is the peak indentation load, an indenter geometry shape factor on the order of unity.
When , the material is strongly hardened and the sink-in predominates, so that strain hardening does not affect contact area.
Dieter: Mechanical Metallurgy (McGraw-Hill, New York 1976)
Online since: January 2017
Authors: Zhi Guo Niu, Ri You, Wei Li, Fu Hai Guan
These factors determine that hydraulic concrete structures are more easily aging than ordinary concrete structures.
As far as the hydraulic concrete structure is concerned, the essence of dam material aging is a coupling interaction of various factors in the operation process, this interaction leads to the decrease of mechanical properties and durability of concrete, the hydraulic concrete aging macroscopically are mainly manifested as concrete cracking, leakage, peeling, dissolution and so on.
Compared with the results ofⅠ{TTP}8544 # and II# specimen, the carbonation can result in the decrease of the porosity of dam concrete, but the critical pore size and average pore diameter will increase, the pore connectivity is enhanced, so the impermeability and frost resistance of the dam concrete is decreased.For the concrete under water, although the carbonation is not obvious, but it does not mean that the concrete in this region is not aging, the increase of the porosity and the pore size in the concrete indicates that the durability and mechanical properties of the concrete under water will be reduced.
For the internal concrete in this dam, the porosity, average pore size and critical pore diameter of the internal zones are all decreased, which indicates that the hydration reaction of the concrete in the dam interior is continuous, and the mechanical properties and durability of the concrete are improved.
Research of Influencing Factor between Concrete Durability and Pore Structure, Harbin, 2006.
Online since: February 2011
Authors: Meng Juan Hu, An Ming Li
The mechanical properties of samples second sub-temperature quenched are better than that of conventional samples 830 once quenched.
This paper is practically significant for the new treatment process and improvement in mechanical properties of 65Mn steel.
It can be seen that the mechanical properties of 830°C+790°C twice quenched are better than that of samples 830°C once quenched.
Austenite inverse transformation sub-temperature quenching can improve the mechanical properties of 65Mn steel.
Mechanical Properties of 27SiMn Steel After Critical Temperature Quenching and High Temperature Tempering [J].
Online since: August 2011
Authors: Jing Wang, Zhan Fang Ge, Ming Wu, Ai Jiu Chen
The order of the factors that affect the chloride ion diffusion coefficient of recycled concrete is fly ash admixture→mixing amount of the air entraining and water-reducing agent→admixture of recycled coarse aggregate→polypropylene fibre admixture, which provides a basis for the application of recycled concrete engineering in the environment which is affected by chlorine salt in the north frigid area .
The packing density is 550 kg/m3~800 kg/m3.In the experiment, the binder is P.O32.5 cement; sand is the ordinary river sand with fineness modulus of 290; Natural coarse aggregate is grinded rubbles of continuous grade; Recycled coarse aggregate is collected from abandoned reinforced concrete beam that was broken and processed; Polypropylene fiber presents in bunch of monofilament, with excellent self-dispersion property; Using SK-3 air-entraining and water-reducing agent which produced by China's water science research institute; The water used regarding to mix-proportion and maintenance is tap water of Zhengzhou; The basic properties of coarse aggregate are in the table 2.
As a result the internal structure of concrete can be improved and the work performance, mechanical properties and durability of concrete can be perfected enormously.
In this experiment the design strength of fly ash recycled concrete is C30, instead of cement admixture of fly ash for 30%, Super generation coefficient is 1.5, the mix proportion and the property of mixture in table 3.
Experimental Investigation on Properties of Concrete with Reclaimed Coarse Aggregate [J].
Online since: October 2022
Authors: Balasubramani Veerappan, Sudharshan Vasudevan, B. Karthikeyan
The fibre orientation angles were considered to be control factors.
Desired mechanical properties can be achieved with the help of hybrid composite materials.
Table 1 Mechanical properties of Fibres S.No.
Carbon fibre 1800 230 17.0 0.28 Table 2 Mechanical properties of Matrix S.No.
The various mechanical properties of the composite plate assumed for validating the numerical analysis [21].
Online since: September 2014
Authors: Jia Ding Wang, Yuan Jun Xu, Quan Ren, Tian Feng Gu
Introduction The purpose of the soil microstructure research is to search for the law between microstructure variation and macroscopic mechanical property, in other words, it aims to reveal micro-mechanism of macroscopic mechanics.
Thus it can be seen that porosity quantity bears some relation to macroscopic physical and mechanical property of soil mass[2].
It can be seen that these two microstructural parameters are important factors affecting void ratio of soil mass surface[5,6].
(1) Soil mass shows various mechanical property under external load effect, essentially, it shows a macroscopic manifestation of microstructure change.
But how relation are between porosity fractal dimension and macroscopical mechanical property of slide-zone soil mass.
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