Search results

Furthermore, the blend films with MDI gave higher mechanical properties than those with PLA-g-MA at all compositions.
Several properties of PLA are attractive to usage for replacing the commodity plastics [1, 2].
It might be implied that the presence of compatibilizer resulting in the defective lamellae of the ternary blend films, affecting to the reducing of thermal stability.
These results were in agreement with the tensile properties of the blends.
Fig. 2 SEM micrographs of the fracture surface of nucleated PLA/PBAT/TPS ternary blend films (a - c) without MDI and (d - f) with 7 wt% MDI Summary Conclusively, in this work, there are two factors affecting to the properties of the ternary blends which were compatibilizer type and TPS content.

The barrel and nozzle design should be fit for mobility, purity and mechanical property of ABS feed.
The Materials for Fused Deposition Modeling The types and properties of materials directly affect the applicability of the fused deposition modeling process[4,5,8].
The pressure loss of nozzle is related to these factors such as structure form, material property and process parameters, etc.
In general, the barrel and nozzle design should be fit for mobility, purity and mechanical property of ABS feed.
Conclusion The polymer mechanical property should be accordant with fused deposition modeling process.

Both biological and mechanical properties of this material have been extensive studied.
To understand the behaviour and determine mechanical properties of HA/PE composite under the bending condition, flexural tests of the composite were conducted in this investigation.
Investigations into basic mechanical properties of HA/PE had mainly concentrated on its tensile, torsional and viscoelastic properties [5-8].
It has also been found that tensile and torsional properties of HA/PE composite were affected by a number of materials factors [6, 7].
Other properties of raw materials can be found elsewhere [6, 7].

The transmission properties of polycrystalline transparent ceramics are influenced by the chemical composition and the microstructure of the material.
The fundamental optical mechanism of transparent ceramics and the influencing factors on transmission properties were discussed in this paper.
The results show that scattering by the residual pores is the dominant influencing factors on transmission properties.
Transparent ceramics have been widely used in optical electronics, lasers and transparent armor [6-9], because of the high heat resistance, good mechanical properties and high optical transmittance.
The microstructure properties of ceramics govern their optical properties.

The study was further focused on the morphological characterization and mechanical properties.
The study is further focused on the mechanical properties of the ENR50/STR5L blends.
This evident resulted in a reduction of mechanical properties of the specimen in this study.
Conclusion The ENR50 showed the better mechanical properties when we compared with STR5L.
The findings can lead to the cost saving in terms of raw materials through using the ratio of 50:50, without affecting the mechanical properties, since 100% ENR50 is more costly whereas STR5L is much cheaper.

The results show that the species and amount of pore forming agent are the primary influencing factors for the microstructures and properties of porous molybdenum.
Sodium chloride affects largest on the porosity of porous molybdenum.
These factors cause the highest porosity, lowest compressive fracture strength and shortest permeable time of porous molybdenum.
The properties of porous molybdenum are in an intermediate state when ammonium chloride is used as pore forming agent.
Davis, Shu Zhen, Review metallic foams: their production, properties and applications, J.

For HA coating, two factors are of primary importance [3].
The first is whether the changes in the composition and properties of the coating materials damage their in vivo performances.
The nanostructure have better mechanical property and stable in vivo, perhaps this is one of factors why the WS samples have most pushed-out strength between implants and bone.
However, completely crystalline HA coating is not absolute good since the completely crystalline HA coating would have worse mechanical properties and inhibit both cell proliferation and alkaline phosphates activity [6,7].
In addition, the amorphous phase and nanocrystals were also beneficial in inhibiting crack formation and better fatigue properties than a crystalline coating, Therefore, it is important to retain some amorphous phase and nanocrystals in the coating to enhance the mechanical properties [6,8,9].

The Structure and Properties of Hard Metals Irradiated by High-energy Electron Beam Ivanov Yurii1, a, Ovcharenko Vladimir2,b, Belyi Aleksei3,c , Teresov Anton4,d 1National Research Tomsk Polytechnic University, Tomsk, 634050, Russia 2Institute of Strength Physics and Materials Science SB RAS, , 634021, Tomsk, Russia 3Physico-tecnhnical Institute NAS Belarus’, 220141, Minsk, Belarus 4Institute of High Current Electronics SB RAS, Tomsk, 634055, Russia ayufi55@mail.ru, bove45@mail.ru, cphti@belhost.by, dtad514@sibmail.com Keywords: hard metal, pulse electron beam, structure, properties.
These advantages include a potential for good control and adjustment of input energy, high uniformity of energy distribution over the beam cross-section area as large as tens of square centimeters, and high efficiency factor for low reflectivity factor surfaces.
Microhardness tester was used for mechanical strength characterization.
One can see the top (2-3) mm thickness layer, transition 5 mm thickness layer and heat-affected layer separated by a chain of microvoids from the base metal.
The underlying layer of hard metal carbide 30-40mm microcrystallites is developed within the heat affected zone after pulse electron beam treatment of the hard metal.

Effect of Hydrostatic Pressure on the Microstructure and Mechanical Properties during and after High Pressure Torsion Erhard Schaflera Physics of Nanostructured Materials, Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Wien, Austria aerhard.schafler@univie.ac.at Keywords: Severe plastic deformation; Line broadening; High-pressure torsion; Dislocations; Hardness Abstract.
Introduction Ultra-fine-grained nanocrystalline and materials processed by severe plastic deformation have been reported to reveal superior mechanical properties i.e. high strength, in coexistence with very good ductility [1-5].
However, with the same pre-factor D0 comprising diffusion-immanent properties, the diffusivity D also depends on the temperature T.
The conversion factors are listed in Table 3.
HV5(77K) / HV5(RT) HV5(RT) / HV0.1(RT) Cu 1.5 0.9 Ni 1.2 1.01 Table 3: Conversion factors from 77 K → RT and macrohardness → microhardness (HV5 → HV0.1) for Cu and Ni.

(a) Schematic diagram of the FSW process, (b) The cross-section of welded joint: a-Base metal, b-Heat affected zone (HAZ), c-Thermo-mechanically affected zone, d-Weld nugget In 2011, Rajakumar et al. conducted a study investigating the impact of various factors and equipment utilized in the welding process on the tensile strength of friction stir welded AA7075-T6 aluminum alloy [5].
The impact of heat treatment on the microstructural morphology and mechanical properties of friction stir welded aluminum alloy has also been demonstrated through studies conducted by Singh [7], Pankade [8], Maji[9].
This study aims to elucidate the heat treatment technique employed for 7075 aluminum welds, focusing on investigating alterations in microstructure and mechanical properties subsequent to heat treatment.
The microstructure and mechanical properties of these regions exhibit different differences as a consequence of the welding process.
The base metal retains its initial microstructure and mechanical properties, and is not subjected to the high temperatures and deformations experienced in the HAZ.