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In a number of fusible metals and alloys has been registered AE in the course of fusion and crystallization [3-5].
Numerical values of all AE parameters increased with increase in speed of cooling are less, and the quantity of grains is more.

Suspension structure: Stylist get inspiration from grain to developed a new structure form - suspension structure.
Humans usually developed elements by using a large number of elements and got very complex experiment.

When the composites were added MAPE, the compatibility between the two phases is improved and the anhydride groups react with the surface hydroxyl groups of the lignin, so the number of the free hydroxyl groups reduced, which in turn decreases the water absorption.
The results of the present work clearly shows that lignin residue from bio-ethanol industry which uses non-grain biomass as raw material can be used as the filler of HDPE matrix for making lignin/HDPE composites.

LSP can improve the mechanical property and fatigue life of specimen, because laser shock waves make the specimen surface produce elastic-plastic deformation and high residual stress, high-density dislocation and grain refinement, etc.
(b) was the high magnification image of (a), and a small number of pores were seen from crack initiation.

The AACH grain precipitated on the surface of the carbon black particles, whose mechanism is heterogeneous nucleation.
The accurate values of average particle sizes of intensity, volume, and number are 519.6 nm, 516.1 nm and 415.0 nm, respectively, which means that the AlON powders had a small size and higher reactivity.

If the content of PTW is more than 5wt%, the binding force between PTW and PTFE decreases gradually, and the PTW can be brushed off easily, and so, the free whiskers and their scraps in the interface would actually enhance grain abrasion, which increases the friction coefficient and the wear rate.
When the amount of rare earth is too high, the treatment surface whisker exist chemical adsorption and a large number of physical adsorption layer, which make the weak phase appear between the whisker and the matrix.

In addition, surfactants can increase thermodynamics stability of cemented carbide powder, especially in ultra-fine grained cemented carbides ball milling procedure [5].
It plays role like intermediate, so the mixture powders are not easy crushed and it will help the compacts shape well. 3.4 Discussion of role of surfactants 3.4.1 Impact of surfactant on hardness It’s well known that hardness of cemented carbides is related to number of pores in alloy inside.

Supposed η (i, j) is a series of random numbers, and the simulated rough profiles heights are produced as (2) where i = 0, 1,…, M−1; j = 0, 1,…, N−1. z (i, j) is a non-Guauss profile with certain autocorrelation lengths; h (i, j) is the two-dimention linear filter.
The procedure relies on only a few samples of abrasive belt topography with no assumption regarding abrasive grain distribution.

The impact strength of grit is usually determined from the percentage of unbroken grits relative to the number tested.
The diamond grit tested is synthetic diamond in grain size 46 US mesh.

From the fig. 1 we can observe the brittle character of the fractured specimen.The intergranular fracture was been produced between two grains of martensite.
This is due to the fact that for a given length of evaluation, the number of points of measurement increases with the magnifying power.