Search results

However, the mechanical properties of the composites prepared by conventional casting routs were not satisfied due to the large size and un-modified morphology of the primary Mg2Si particles.
Consequently it is anticipated that by densification of the VCS samples via thermomechanical processes, a considerable improvement in the hardness and mechanical properties of these composites can be achieved.
Emami, Effect of Mn addition on the microstructure and tensile properties of Al–15%Mg2Si composite, Mater.
Von Oldenburg, Microstructure and mechanical properties of mechanically alloyed intermetallic Mg2Si-Al alloys, Z.
Pai, A simple inexpensive technique for enhancing density and mechanical properties of Al-Si alloys, J.

The possible explanation is that the microstructure and properties of all-ceramic Veneering changed during multiple firing.
Furthermore, fewer studies produced detailed information on the wear mechanism of all-ceramic restoration especially on the effect of manufacture factors.
Dental porcelain is composed of silica glass that is modified by fluxes such as CaO, K2O, Na2O, B2O3 and AL2O3.With an appropriate composition of the oxides, leucite crystals are formed to improve mechanical properties and control the coefficient of thermal expansion of the ceramic.
The materials for all-ceramic veneering porcelain contain up to 90vol% of crystalline phase, which consists primarily of alumina, magnesia, zirconia, or lithia in a glassy matrix to control mechanical and optical properties [8,9].
Some factors such as the magnitude of temperature and differences in material properties, including the coefficient of thermal expansion, the glass transition temperature, and the viscosity might affect thermal stress in layered ceramic structures [2,11].

The mechanical property of the composite was examined with hardness test.
Important factor affecting aluminium alloy characteristic is the use of Mg and Cu element, as in the research by Dons, et.al [7,8], whereas Zn will optimally increase the hardness, after a precipitation-hardening heat treatment process [9].
Based on this, in order to increase the mechanical properties in this research, Mg and Zn alloy elements are added to aluminium matrix.
The ability to withstand the penetration of projectile is influenced by the mechanical properties of aluminium matrix composite.
Regarding composite material, the volume fraction of the reinforced material affects its mechanical properties.

By increasing the amount of acicular ferrite in the microstructure, the properties of HSLA steels can be optimized significantly.
Various authors reported that an increased content of AF in the microstructure leads to an improvement of the mechanical properties [6-7] due to the significant differences in the propagation path for a cleavage crack in different microstructures.
Thus, it is possible to reproduce solidification and subsequent cooling of the cast material in casting-rolling processes and to characterize the microstructure and the mechanical properties of the solidified samples.
Thus, for the determination of the most decisive influencing factors regarding the formation of acicular ferrite, a systematic study concerning the different influencing parameters and their interactions is indispensable.
Horii, Recent Developments in Controlling the Microstructure and Properties of Low Alloy Steel Weld Metals, ISIJ International 35, 10 (1995) 1170-1182

The frangibility of a bullet is influenced by its bullet characteristic factors, target characteristics, and impact condition.
(1) Results and Discussion Physical Properties of Cu-Sn Composite Density is one of the requirement needed to support a good ballistic performance of a bullet.
Mechanical properties of Cu-Sn Composite Hardness and modulus elasticity are mechanical properties that must be studied in manufacturing frangible bullets, their to perform relevant with the performance of a bullet.
Higher modulus of elasticity can be stated that its compactibility (interface bond quality) is also higher [2].The increase strength of bond will affect on the performance of a frangible bullet, since frangibility will increase if strength and durability of material properties decrease according to Rydlo [6].
“Theoretical Criterion for Evaluation of the Frangibility Factor”.

The rheology of A96% alumina slips and the physical and mechanical properties of slip cast samples were studied.
The rheological characteristics of the ceramic slip, as well as the porosity characteristics of the plaster mold, are primary factors that affect the properties of the sintered ceramic products [2].
Therefore, this research studied the effect of PVA binder content on the rheology of an alumina slip and the green properties of cast alumina samples.
More factors that influence the slip rheology and the properties of green samples need to be examined, such as the slip solids contents, pH, and the addition of dispersants and plasticizing agents [10].
Measured properties of green alumina bars.

Introduction Hazardous substances present in the environment are large group of pollutants affecting human health [1,13].
One of the most important factors primarily conditioning the health of workers is dust level.
The stability of the created phase morphology is highly dependent upon the addition of interfacial agent, ensuring improved dispersibility and improved adhesion at the interface, thus improving the physical and mechanical properties of the polymer system [1,8].
For assessing the impacts of interfacial agent on structure and properties of mixed fibers, we used fiber containing 20 % polyamide component with changing interfacial agent content (0-2 % wt.
Kovář: The effect of composition and rheological properties of component on the morphological structure of polymer blends.

However, the power consumed in the metal cutting process is largely converted into heat and the generated heat is dissipated by cutting tool, chip and workpiece materials, which affects the workpiece properties and the cutting tool.
Silva and Wallbank reviewed the analytical and experimental methods used to measure or predict cutting temperature: the temperature in the cutting zone was affected by the cutting parameters including the feed rate, cutting speed, the depth of cut and the tool geometry as well as the properties of the workpiece materials [3].
The previous studies showed that feed rate is one of important factors affecting surface roughness and form accuracy in UPRM.
However, none of them studied the factors affecting the cutting-induced heat generation and the effect of workpiece material properties on surface finish in UPRM.
The Precitech Freeform 705G machine is of high performance, ultra-precision three-axis computer numerical control (CNC) machine center, suitable for esoteric optical and mechanical component manufacture.

All of these historical pagodas were registered and protected as the important cultural properties by Japanese Government.
Sezawa,K. and Kanai,K. (1936) studied theoretically their anti-seismic properties by employing elastic wave propagation model, as shown in Fig.3.
Even if one of those functions happens to be lost, the other inherent anti-seismic factors would cover it, therefore, the structure would still safe against large earthquakes.
"A Study on Aseismic Properties of the Five-Storied Pagodas." in Proc. of 11th WCEE, 3989-3994
Study on the Aseismic Properties of the Gozyunotos (Pagoda)."

They found that the size, shape and content of the porogen in the molding mixture greatly affect the physical properties of the pores in the final porous sample.
The choice of the materials for the joint takes into consideration not only properties such as mechanical resistance, but also low friction coefficient and wear loss.
As we know, the mechanical strength is one of the factors that determine the tribological properties of material.
In dry wear condition, the coefficient of friction and wear loss were increased due to the decreased of mechanical properties.
Compare with that of UHMWPE sample, we attributed this change to the decrease of mechanical properties of porous UHMWPE.