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Because of its beautiful appearance, good physical and chemical properties, all-ceramic crown restorations are more widely used.
However, due to the brittle performance of ceramics, porcelain fracture and spalling fracture were often occurred and the use of all-ceramic restorations was greatly affected.
Meanwhile, the metal ions of the ceramic alloy not only make the porcelain prosthesis occurred fade, and some patients have metal allergies [3], the existence of these factors impels the development of the all-ceramic systems without metal basement structure.
However, the brittleness of the ceramic restoration is still the Achilles heel of restricting its application, greatly influence the reliability and stability of the material properties, also limit its features to play and practical application.
The main mechanical properties of all ceramic crown and crack germination, extension, penetrating and failure process was simulated in this paper and the results has important guiding significance for the clinical use of all-ceramic crown restoration.

., the effect of domain orientation on the mechanical properties was examined [4].
The electrodes are selected according to the most appropriate mechanical properties and applied to the PZT using magnetron sputtering.
Available sputtering targets from the company Goodfellow are faced with electrical and mechanical properties in Fig. 2 [12].
In addition, other electrode layers will be investigated, which exhibit similar mechanical properties like the PZT material.
Mizuno, Influence of domain orientation on the mechanical properties of lead zirconate titanate piezoelectric ceramics, Journal of the European Ceramic Society 31 (2011) 141-150 [5] O.

As affected by multi-factors, the apparent quality of fair-faced concrete did not reach a high level at present, which relied in a large extent on the transparent painting [3, 4].
Table 2 lists their main properties.
Table 3 lists the main properties of the crushed stone.
Fig. 4 lists the main properties of this sand.
[7] GB/T 50081-2002: Standard for Test Method of Mechanical Properties on Ordinary Concrete (China Building Industry Press, Beijing, 2002)

Thermoelastic martensitic transformation is a mechanical process as well as a phase transformation which may occur in response to either thermal or mechanical conditions.
For functional use in superelastic or shape memory application, the properties of shape memory alloys can be optimized by cold working, heat treatment or combination of both [3,10].
Dislocations and Ni-rich precipitates that are present in the material due to cold working and heat treatment process will affect the properties of Ti-Ni shape memory alloys.
From the above explanation, it is seen that the formation of Ti3Ni4 during ageing is a factor that greatly affects the formation of R phase.
Additional ageing time affects the amount and size of the Ti3Ni4 precipitates.

However, conductivity less than 6 S/cm was achieved although the bipolar plate had excellent gas barrier properties and mechanical properties.
Selection of Control Factors.
Research parameters as the control factors mainly affect the output of the objective or the electrical conductivity value.
For every combination of control factors, three measurements were performed.
Effect of control factors Analysis of Variance.

For the enterprise, in order to response to market changes rapidly and can introduce new products with high quality and inexpensive properties, the concept of sheet incremental forming(IF) has been brought up[1,2].The basic principle of IF is based on dimension reduction, it transforms a complicated 3D geometry part into a series of simple parameters of 2D layers, then the part is processed layer-by-layer through the computer numerically controlled the forming tools movements, eventually the sheet metal is processed into a target parts rely on cumulative plastic deformation of each layer[3,4].
X.C.Song[8] has made investigations on the factors of process parameters which effect the suface quality of IF and also has proposed a mathmatical model to evaluate the abrasion effect.
But the scholars’research mentioned above mainy focus on the influence of feed rate on single point incremental forming(SPIF) process, how the feed rate affect the forming quality and forming accuracy of MPCIF has not been discussed.
Table2 The material properties of aluminum alloy 1060 Title Yield stress(MPa) Elasticity modulus (MPa) Poisson ratio density (kg.m-3) Tensile Strength (MPa) Value 116 68900 0.33 2680 136 1.4 Finite Element Model The 3D finite element model of forming parts is built as shown in fig.3.
Influencing Factor Analysis on the surface quality of incremental forming parts[J].Journal of Mechanical Engineering,2012,49(8):84-90 [9] J.Zhou, S.T.Peng, X.Zhang, et al.

CDA18150 is a Chromium Zirconium copper that has high electrical conductivity and high mechanical properties making it ideal for resistance welding electrodes [3,4].
The combination of these factors resulted in FSW tools that were only capable of producing two welds before requiring replacement.
Properties of Wrought Coppers and Copper Alloys.
The Joint Properties of Copper by Friction Stir Welding.
Microstructures and Mechanical Properties of Friction Stir Welded Dissimilar Copper/Brass Joints.

Characteristics of green tapes are strongly dependent on rheological properties of slurry.
Effects of viscosity, dispersant content on physical and mechanical properties of green and sintered HA tape cast sheets were studied [2].
The values of factors: A, B and C are written in coded values and true values in brackets.
It indicated that all factors; the viscosity, the blade height and the speed, had an effect on both flexural strength and density.
Chaijaruwanich, Effect of binder/plasticizer ratios in aqueous-based tape casting on mechanical properties of bovine hydroxyapatite tape, Ferroelectrics 455 (2013) 129-135

The results show that the stiffness of the contribution and the confinement effect filler by factors geometry, masonry materials, the impact of the framework is not the same, need to consider the specific analysis and structural design.
So it is necessary to quantitative analyze various factors on the stiffness effect and the distribution of internal force of filler wall frame structure and make references to the seismic design of this structure.
FEMA [6] in the United States, points out that as two kinds of different ductility structure- filling wall and frame, the actual stiffness is the average stiffness when the body cracking or diagonal cracks through framework at the elastic stage, this is important deformation properties indicators of structure under normal working state, hereinafter referred to as elastic stiffness.
Masonry materials of filler wall is the main factor for filler wall’s failure mode.
But that mode affects(change) framework structure’s load path directly.

The crystallization process of MgO-Al2O3-SiO2 glass-ceramics was investigated with X-ray diffraction (XRD), scanning electron microscopy (SEM), and other techniques; the discussion of breaking strength, thermal expansion coefficient and relevant properties at different sintering temperatures was also presented.
Introduction The substrate is the core component of computer hard disk, so its performance will directly affect the quality of hard disks.
The traditional NiP/Al substrate for the hard disk is difficult to meet the requirements of the development of new technologies considering the factors of strength, thermal properties, and surface properties.
Among a variety of glass-ceramics systems, the MgO-Al2O3-SiO2 material, which is mainly composed of cordierite crystal phase, reveals the relatively low dielectric constant and thermal expansion coefficient, high mechanical strength, and good electrical insulation properties.
This paper aims at investigating the preparation and properties of the MgO-Al2O3-SiO2 glass-ceramic with a view to obtaining practical materials for the hard disk substrates. 2.