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The smaller sizes of crystalline grains of ZnO will promising in improving the stability and the nano-sized lateral the good sensing properties [8].
The decreasing resistivity was due to more thermal energy for electrons to absorb, and thus will increase the number of conduction electrons [17].
"Study of Structural and Electrical Properties of Grain-boundary Modified ZnO Films Prepared by Sol–gel Technique."

This parameter depends mainly on the shape and grain size of the grout and its viscosity.
Due to the fact that some components of the mixture of ingredients were very fine-grained and visually had a certain tendency to pack, a third set of recipes was also created, in which the ingredients were dosed into the homogenizer individually.
If the ingredients were homogenized in advance, a certain number of bales probably formed, which did not mix sufficiently with the rest of the raw materials when mixed in the homogenizer.

This kind of foil is characterized by columnar, brittle grain structure which can be improved by final annealing process.
As a result, even if nickel wire made by melt metallurgy meets the standards, a number of trace elements and their actual content may largely differ from melt to melt.
Initially, grain structures of welding zone, heat affected zone and parent material differ from each other.

Characterized by certain physical features, like the grain size distribution, their geometry (grain shape), the angular fractures, hardness properties, etc.) and chemical properties as well, Garnet sands can generate steady abrasive flows, essential for AWJ techniques, with no blockages in the focusing tubes, determine a more edge cutting accuracy and also speed of the process.
CFD simulation of eductor nozzle fluid flow - detail Conclusions CFD simulations were performed in a preliminary case study for eductor system placement to determine the optimal configuration of a pressurized water path equipped with eductor nozzles for evacuating the abrasive material from the collecting tank of the abrasive waterjet cutting equipment, with the following aspects observed: - high pressure water jets can be used to dislocate and stir in a homogenous solution the garnet mixtures; - the main parameters e.g. the water pressure level, number of eductors, orifice sizes, garnet collector volume and angle position of eductors all have significant impact on the level of homogenous stirring; - collector tank studied was 2500 mm in length, 1200 in width and 500 mm in height; - there were two proposed variants for positioning eductors: facing each other and offset by 45 degrees; - a CFD simulation was done for and individual eductor ant the results were used for the larger system

From this image it can be seen that the sol-gel PZT contains uniform columnar grains.
SEM images show dense films with columnar grains, while Xray diffraction data show the desirable perovskite phase of PZT necessary for strong piezoelectricity.
Stark, Microsystems Technologies Vol. 12, Numbers 10-11, 2006

In comparison, the microstructure evolution during stage 1 has received much less attention though its impact is critical for achieving successful stage 2 forming via control of grain size and crystallographic texture.
It should also be noted that the final deformed grain sizes and the misorientation distributions obtained from EBSD were approximately the same for all 0 20 40 60 80 100 120 140 160 180 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Equivalent Strain Equivalent Stress (MPa) Figure. 1.
It should also be noted that the absolute number of particles also increased with delay time.

Fig.1: Ishikawa diagram summarizing factors affecting the LFC quality Fig. 2: Pattern dimensions in 3-D In this experiment silica sands with the grain sizes of #16-30, #40-60 and #60-100 were used for mould making.
Table1: Levels of the independent variables Independent Variables Symbol Levels -1 0 1 Pouring temperature A (°C) 700 720 740 Slurry viscosity B (Sec) 20 28 36 Vibration time C (Sec) 30 60 90 Sand grain size D (AFS) 30 60 90 Results and discussion The thinnest section was selected due to the reason that this section is the most difficult part to be filled.
It should be noted that based on the selected variables, the number of experiments was 16 (24) plus another four more trials which were considered as the centre points for each variables.

Furthermore, TiC is also an effective grain refiner since it acts as the nucleus of α- Al during the refinement of aluminum alloys [2].
In addition to its appeal from a basic science standpoint, the final motivation for the study is to explore the grain refinement mechanism of Al-Ti-C master alloys in the future.
Since the Ti-terminated and the C-terminated slabs contain the different number of Ti and C atoms, the following calculation are divided into two groups.

Since only the protruded SiCp grains are in contact with the workpiece, high normal force would cause indentation on the workpiece surface and the transverse movement of the electrode would cause grooves.
Transverse movement would also let SiCp grains be pulled out of the electrode if it were poorly mounted on the copper matrix, and this would result in the loss of both electrode material and grinding function.
This rate depends on a large number of properties of the workpiece material, including its melting point, thermal conductivity and latent heat.

It is observed a linear increase on R as the rf power density increases, due to the amount on the number of sputtered particles [6].
These values are only explained by a high efficiency of the gallium dopant atoms, without significant defects ascribed to the grain boundaries and so, no significant barrier effect exists limiting the carrier’s transport between grains.