Search results

For so the pigment grain and oil emulsification, wet before catharsis also join the clean agent.
Anionic surfactant rarely used as deinking chemicals, because it can form a large number of stable foam, and no selectivity.

MA process greatly depends on a number of process parameters to achieve the desired product phase, microstructure and properties.
As reported by Tjong and Ma [7], the contact area between the grains increased and particles underwent extensive plastic deformation when the pressure increased.

According to previous research result, the rock of Thousand Hands Bodhisattva statue is a kind of sandstone which contains mainly gray purple calcareous cemented by fine grains of feldspar and quartz . while Feldspar erodes easily[3], and Montmorillonite is a common kind of feldspar, which is a kind of sheet minerals made of very fine hydrous alumina silicates particles, it expands when contact with water, then the volume will multiply several times and turn to mash.
Fig.7 The element component of the rock surface eroded Fig.8 The element component under 50nm depth Chemical composition analysis Table1 The chemical composition of the samples obtained by XRD number mineral species and content(%) clay mineral content(%) quartz potash feldspar plagioclase calcite gypsum Dz-001 47.7 9.3 29.3 5.9 0.4 7.4 According to the table above, major components of the sandstone eroded are quartz, feldspar, a certain amount of clay mineral, calcite as cemented product, and gypsum as sedentary product.

As a result of the high cooling rate during spray forming, spray-formed materials have much finer and more homogeneous grain structures than the conventional made ones [1, 2].
When the tempering temperature reaches 600oC, it is can be seen in Figure 6d that a larger number of carbides precipitated from the matrix and the matrix phase transforms to equiaxed ferrite which will lead to a large drop in hardness.

We estimated thermal conductivity (κtotal) at 1000 K according to the Wiedemann-Franz's law (κelectron = LσT, L: Lorentz number).
It should be noted that the ZT value of the ceramic sample reaches 0.35 at 1000 K, which may indicate that carrier scattering at grain boundaries of the ceramic is not remarcable at high temperatures.

Introduction Multiferroic materials with coexistence of at least two ferroic orders (ferroelectric, ferromagnetic, or ferroelastic) have recently stimulated a sharply increasing number of research activities for their scientific interest and significant technological promise in the novel multifunctional devices [1-3].
It was clear that dense, homogeneous, and fine-grained powders, with average particle size of 50 nm, were prepared at 800 ºC.

Introduction In recent years, the global scrap tires of automobile have grown up to 3 billion with an increasing rate of more than 1 billion a year, and the number of waste rubber products and leftover materials from rubber industries has also been shooting up [1, 2].
The Chinese ISO Standard sand was used as natural sand.Recycled sand was obtained through crushing abandoned concrete, with the particle size of less than 4.75mm, apparent density of 2.45 g/cm3, bulk density of 1.2 g/cm3, fineness modulus of 2.9, belong to medium grained sand.

The main phase composition of a porcelain body is constituted by a heterogeneous glassy matrix and needle-shaped mullite crystals together with some quartz grains and closed irregular-shaped pores.
Table 1: Compositions with substitution of quartz by POFA (wt %) Mix Number Clay Feldspar Quartz POFA AP1 50 25 25 0 AP2 50 25 20 5 AP3 50 25 15 10 AP4 50 25 10 15 AP5 50 25 5 20 AP6 50 25 0 25 Results and Discussion X-Ray Fluorescence (XRF) analysis is proficient in analyzing material contents inside POFA, hence the amount of SiO2 can be observed.

Meanwhile the cold treatment could prompt martensite to separate out ultrafine carbon, refine the grains, and obtain strengthening and toughing effect.
Drive gear products (fig.6) have large number of steps on end face with large difference in wall thickness, belonging to complex shaped parts gears.

The torque M and the number of revolutions N were recorded and converted to von Mises equivalent stress s and equivalent strain e at the surface: and (5) where R and L are respectively the radius and the length of the gauge, is determined at constant strain, and at constant strain rate.
Grain evolution analysis and experimental validation in the extrusion of 6XXX alloys by use of a lagrangian FE code, Int.