Search results

Boron carbide-based ceramics will be probably the most promising materials during the next decades due to their excellent mechanical properties combined with its chemical stability and low-density.
Room-temperature mechanical properties of pure boron carbide have deserved considerable attention due to its remarkable hardness and resistance to shock-impact; however, its high-temperature plasticity with unusual ductility remains unexplored.
Chhowalla M, Boron carbide: structure, properties and stability under stress, J Am Ceram Soc, 94 (2011) 3605-3628
Zaretzky, Static and dynamic mechanical properties of boron carbide prepared by spark plasma sintering, J Eur Ceram Soc, 29 (2009) 3395-3400
Enhanced mechanical properties of nanocrystalline boron carbide by nanoporosity and interface phases.

The physico-mechanical properties of different types of steel and bamboo fibers were investigated.
Mechanical and physical tests were used to measure the retained properties and to observe the causes of damage and strength reduction.
Since degradation of FRP materials mainly depends on diffusion and chemical reactions, both of these factors can be accelerated by raising temperatures.
Measurements of various properties of FRP materials exposed to aqueous media showed the possibility of a sudden decrease, after a certain induction period, of the mechanical properties of composite materials upon exposure [1].
Some authors have studied the mechanical properties of lignocellulosic/polyester composites with well-defined fiber orientation (unidirectional or bidirectional) [3-6].

Mechanical properties and failure behavior of the spot welds in terms of peak load, failure energy and failure mode, were evaluated using tensile- shear test.
Relationship between welding current and mechanical properties was investigated.
It was found that the formation of brittle intermetallic compounds in the weld fusion zone is the key governing factor for mechanical properties of dissimilar Al alloy/low carbon steel resistance spot weld.
In addition, the formation of brittle intermetallic compounds at the weld zones deteriorates the mechanical properties of the joint.
Mechanical properties-As can be seen in Fig. 7, generally increasing welding current increases peak load and energy absorption.

The parameters of mould filling are of great importance to the end result especially when considering factors such as warpage (orientation effects) and surface finish (skin formation).
Filling dynamics are also thought to be the major factor in affecting the levels of residual stress [15-18].
Injection speeds that are too high can cause jetting and degradation and thus affect mechanical properties.
Therefore any change in chain length will affect: · Molecular weight and viscosity · Tensile and impact properties.
They are characterized by a combination of excellent mechanical resistance, glasslike transparency, excellent dimensional stability, thermal resistance and good electrical properties.

The factors affecting biogas production and the dynamic response of biogas production were aimed at designing reactors for households.
The factors that influence the reaction rate are temperature, pH, organic substrate concentrations and biogas production flow rate.
The results of the biochemical properties are shown in Table 1.The biogas properties from the reactor were analysed by the Scientific Equipment Center at Prince of Songkla University and are shown in Table 2.
Biochemical properties of shrimp pond sediment No.
The biochemical properties of the shrimp pond sedimentsafter anaerobic digestion process could be reduced.

The effect of microgel on the rheological properties of adhesives, leveling, mechanical properties and pigment printing performance was studied.
At the same time, the mechanical properties of the adhesive film was measured by strength tester.
Fig. 3 The stress-shear rate curve of (a) the binders and(b) the binder with 5wt% microgel. at 25˚{TTP}730 C Effect of microgel on leveling of binderd film Leveling and sagging are very important factors in painting , which affect surface apparence and gloss of the coating .The smooth features of painting known as levelingand it is also important.
Mechanical properties of polymer films were improved as the bond strength of the main chain or the force between molecules increased.
The addition of crosslinker was about 6wt% which the mechanical properties of coating film were maximized.

Thus, only by getting to know characteristics of particulate media could system react to various disturbances, do a "self-organization" while factors’ change happening in order to meet the needs of engineering properties and get to know the microscopic characteristics of accumulation body well.
So the research of interior properties needs to be strengthened.
Instability mode of accumulation slope Instability and failure mode refers to damage of physical and mechanical deformation mode occurs on accumulation body under the main influence or control factors.
Contacted surface is the first discontinuous surface, as affected by groundwater and other factors, it usually has lower mechanical strength indicator, in addition, pour ​​water pressure and penetration force caused by underground water is also affected.
Impact factors of slope have an effect on slope instability model.

It primarily controls technical specification of concretes material, such as the material, the mechanical properties, and the mixture ratio design and so on.
The concrete structure durability design involves complex content，many uncontrolled factors and big difficulties.
Durability design factors analysis.
It involves the basic mechanical properties, the environment function withstanded in the use period and performance condition in the use period of the concrete structure and so on.
The main influencing factors include the interior material attribute of concrete structure , the use process of concrete construction and the structure stress condition, and the environment function which is interacted by the concretes contact environment and one or several these factors causes the damage of concrete.

Introduction The presence of interstitial elements in metals may cause significant changes in their physical, chemical or mechanical properties [1-3].
Also, the equilibrium solid solubility of interstitial atoms has notable influence on the thermodynamic and mechanical properties of materials, such as solution strengthening [4,5], damping properties [6,7], etc.
Both the elastic and chemical factors affect the solubility and behavior of the interstitials.
And the mechanical properties of material can be estimated without the need to figure out the complex interactions between the interstitial and substitutional solutes.
Higashi, Effect of interstitial carbon on the mechanical properties of electrodeposited bulk nanocrystalline Ni, Acta Mater. 61 (2013) 3360-3369

The current local stability criteria (KBC2009, AISC2010) are enacted through theoretical and experimental studies of ordinary steels, but the mechanical properties of high strength steels are different from ordinary steels.
The ordinary steel and high strength steels are different of the mechanical properties.
(2) The strength of the H-shaped cross-section with strength reduction factor in the flange (Qs) is Eq. 4[3,6,7], as the thickness ratio of the web (bw / tw) to affect the interaction of the slenderness ratio (λf) is Eq. 3[3,6,7].
In result, the reduction factor of SM570TMC specimens all meets current local stability criteria.
In conclusion, The TMC(Thermo Mechanical Control) shown a great help for concentric loading.