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A limited amount of carbon from the MA can also be seen to start diffusing as indicated by the pearlite formed next to the MA particles and along the grain boundaries formed by the Fe particles (Fig. 2a).
The Mn source in each case can be found by the reference number, and as seen in the Table the properties obtained with the present approach allow an interesting comparison, with other PM steels having a more complex chemical composition, processed at higher temperatures or using protection, like getters or containers, to prevent oxidation and pronounced Mn evaporation.

The more precisely heat can be introduced into the component, the lower the number of sunk spots and the less component warpage occurs [7].
In the outer and inner bent area, micro-structural changes resulting from stretching and compressing the grain structure can be observed.

Report of HEACON (1998) collected 247 samples in the area 2 x 2 km and 49 core samples (with depth of 0.6 m), the results indicated that the stratum in Bassac River and Dinh An Estuary is dominant mud and the grain size less than 0.063 mm with more than 80% [2-5].
Acknowledgements The work was financially supported by Vietnam International Education Development - Ministry of Education and Training (Project number 322), the Special Research Fund of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering (2009585812), the Fundamental Research Funds for the Central Universities (Hohai University 2012B06514), and the 111 project (B12032).

The grain size of the sample was about 40 µm.
Foils for permeation experiments were mechanically polished with emery papers up to #200 with increasing number of mesh, and cleaned in ethanol.

filling wide strip full-pillar extraction filling the gob the first stage wide strip mining the second stage Fig.1 The step of Full-pillar extraction by filled wide working face layout in strip mining Full-pillar extraction by wide working face layout in strip mining decreases the number of working face and makes the implementation difficulty lowing.The reasonable control of the ground deformation and filled effect in the first stage is the key to promise the second stage successful mining.
Their grain size must be less than 5mm in order to ensure liquidity.Mixing equipment can be on the ground or underground according to compaction and scene situation.The stowing process is that stowing roadway layouts parallel to working face gate road and lags behind a distance, drilling and installing stowing pipeline from stowing roadway to the gob, the end of pipeline must be located at the top of gob in order to stowing gaps as shown in Fig.3.The filled body compress subsidence.

Introduction Due to the dispersed distribution of titanium component in various mineral phases, very fine grains (<10μm) and complex interfacial combination[1], titanium bearing blast furnace slag can hardly resort to traditional separating technique, resulting in a great waste of titanium resources and environment pollution[2,3].
As seen in Fig.3(b), the product held back on the filter appears black, with a large number of porosity, while the product gone through the filter presents gray, with a glassy state.

While the transparency of ceramic materials is influenced by many factors, such as material thickness, crystal structure, firing number and so on.
Ahn, Effect of the sintering conditions of dental zirconia ceramics on the grain size and translucency, J.

It was found that the M23C6 type of carbide precipitates observed on the prior austenite grain boundaries became coarse, while the particle size of MX precipitates showed no distinct changes.
CLAM steel exhibited an initial hardening during the first number of cycles, and gradually softened with continued cyclic deformation and a rapid drop in stress carrying capability, and it was seen that as the strain amplitude increased, the stress amplitude increased.

Because the temperature under 60°C was too low and the viscosity of the system was too high to react completely, so waterborne epoxy emulsion prepared was instability, grain size, easy to layer; when the reaction temperature was up to 100°C, the reaction was too fast, and the emulsion instability also.
Combined with the graph (a) and (b), characteristic absorption peak at 915 cm-1 of epoxy resin modified was decreased a lot, this was because DEA and epoxy resin E44 had a ring opening reaction, resulting in system of epoxy number decreased significantly.

As shown in figure.2(A,D),active components appear the agglomeration phenomenon, respectively, and grain growth decreases the surface area which affects its activity.
The high temperature (HT) peak is related to the number of Bronsted acid sites.