Search results

Then the test bodies were subjected to determining physical and mechanical properties and physical and chemical characteristics: Physical and mechanical parameters: - Determination of increase of initial strengths (methodical procedure acc. to ČSN EN 14488-2), - Determination of specific density (ČSN 722447), - Determination of tensile strength at bend (ČSN 722450), - Determination of compression strength (ČSN EN 12190).
As regards the rise of initial temperatures, the developed material can meet the requirements placed on Sector J2 and the accelerating admixture is not the factor that would adversely affect the composite resistance to extreme temperature effects.
The positive effect of the presented measures on resistance to high temperature effects can be documented in the developed composite by comparing its properties with a commonly used sprayed concrete.
At higher temperatures the mechanical properties of the standard shotcrete are very low with its practically total destruction.
However, at extreme temperatures (i.e. 1000°C or 1200°C), the mechanical properties of this composite are significantly decreased.

Among many factors that influence the reliability of a flip-chip assembly using NCF interconnections, the most effective parameters are often the coefficient of thermal expansion (CTE), the modulus (E), and the glass transition temperatures (Tg).
Of these factors, the effect of Tg on thermal deformation and device reliability is significant; however, it has not been shown clearly what effect Tg has on the reliability of NCF.
The material properties of a NCF between the chip and a PCB have enormous effects on thermal fatigue.
Of these factors, the effect of Tg on thermal deformation and device reliability is significant; however, it has not been shown clearly what effect Tg has on the reliability of NCF.
This delamination is mainly affected by the shear strain at the edge of the chip.

The effects of B4C phases and applied processing conditions, on the microstructure and properties of TMCs, are investigated.
Moreover, results of densification, mechanical properties and hardness measurements help to identify the most suitable processing conditions to produce this kind of TMCs.
Mechanical properties were studied; the measure of the densification of the composites by Archimedes’ method (ASTM C373-14) was set to density determination.
Imai, Influence of carbon reinforcements on the mechanical properties of Ti composites via powder metallurgy and hot extrusion, Materials Science Forum. (2013) 40-43
Ward-Close, Titanium Particulate Metal Matrix Composites–Reinforcement, Production Methods, and Mechanical Properties, Advanced Engineering Materials. 2 (2000) 85-91

Zulafif Rahima, Arash Pourmoslemib, Songlin Dingc, John Mod School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Australia as3372621@student.rmit.edu.au, bs3342272@student.rmit.edu.au, csonglin.ding@rmit.edu.au, djohn.mo@rmit.edu.au Keywords: Residual Stress, Raman Spectrum, PCD, Polycrystalline Diamond, EDM Abstract.
Diamond grain size is the main factor that determines the mechanical properties of PCD, and it is usually in the range between 1 to 80 µm.
Application of PCD is not only restricted to mechanical engineering, it can also be used as a high temperature electrical or optical devices.
The layer of PCD that is subjected to high temperature but not enough to be melted is called heat affected zone (HAZ).
HAZ is unavoidable in all thermal processes and emerges in a few microns underneath the surface that is affected by heat.

The article discusses Scheffe's simplex-lattice planning method using the example of describing the dependence of the properties of a mixture by a second-order polynomial [4].
Factors and levels of their variation i Factors xiн xi 1 The amount of preliminary residual deformations εн, [%] 1 -1 3 1 2 Maximum cycle voltage σmax, [MPa] 1080 -1 1280 1 The value of the preliminary residual deformation xin was set according to the deformation diagram P – Δl with a scale of 1: 80 (Fig. 1).
For the convenience of processing and interpretation of the experimental results from the natural values of the factors xin we went over to the dimensionless xi, while for the factors with equally spaced levels, the coefficients of the orthogonal Chebyshev polynomials were taken [6].
Thermodynamic properties of binary and ternary compounds of CaO-BaO-Al2O3 system.
Mechanical Engineering. (1980) 304 p

The humidity of the powder not only affects the charge of the powder, but also affects the dispersion degree of the powder. 1 Introduction The dispersion of powder is closely related to the powder production and utilization.
Although the surface modification enables the ultrafine particles to anti-aggregation perpetually, the original properties of particles have also been changed at the same time.
This makes the value of the dispersion degree affected by operation factors.
This result tells us the space between electrodes is an important factor when you design a dispersion device.
The moisture of powder is the major effect factor to the electrostatic dispersion.

The Post-Yield stiffness was not affected by the change in bolt gauge.
Many factors can affect the behaviour of these components such as concrete-infill grade and slenderness ratio of SHS face [10].
The samples were cut from the same SHS tube to eliminate any discrepancy associated with the material properties of the SHS.
The Post-Yield stiffness was not affected by the variation of bolt gauge.
Elghazouli, Component-based mechanical models for blind-bolted angle connections.

The basic property of this grating is that it becomes a narrow band optics filter with the centre of resonance wavelength.
Fig.1 FBG sensing principle Within all of external factors which cause FBG wavelength drift, the most direct is deformation, because whatever stretching or compressing to grating will be bound to cause grating period to change.
It provides the most basic physical property to make optical deformation sensor with optical FBG.
When leakage happens, the optical fiber nearby is affected by the leaked high pressure gas, which causes the fiber to bend and tremble.
[2] Zhou Zude,Tan Yuegang,Liu Mingyao,Actualities and Development on Dynamic Monitoring and Diagnosis with Distributed Fiber Bragg Grating in Mechanical Systems, Journal of Mechanical Engineering, Vol.49, no. 19, (2013), p.55-69

This part of the alloy material’ properties isn’t considered in this paper, and the uniform material of rotor is assumed.
The main property parameters in Table 1 are known.
In fact, the cooling water section is random-walking and no constraint in mechanical position.
The various factors that affect the fatigue limit relate to stress concentration, especially in the junction of power input shaft part and the disk where we can add circular bead transition and the stress concentration phenomenon will be ease greatly.
So that the failure situation of sections and the size of the safety factor will be judged directly.

Fig 2.1 The results comparing of modifying when modifier is in best dosage penetration Fig 2.2 The softening point of modifying when modifier is in best dosage penetration Fig 2.3 The ductility of modifying when modifier is in best dosage penetration WARM MIX ASPHALT ROAD PERFORMANCE RESEARCH In order to minimize the factor that affects analyse the modification effects of modifier, this experiment used the same aggregate gradation.
Hot mix asphalt mix ratio design The experiment uses the aggregate whose physical and mechanical properties are set to meet the technical requirements in JTGE 42-2005 highway construction materials testing procedures [5], the forming gradation is shown in Table 3.1.
Some studies show that it is because colloidal factor of the SBR is less damage at low temperature, and the modified factors play their role[10],but the effect of epoxy curing agent has not been fully realized in curing time.
Conclusions Warm mix asphalt agent can reduce the mixing temperature, at the same time it can’t affect the performance of the asphalt.
Based on temperature and surfactant mix asphalt mixture design and related properties of [D]. ​​