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Introduction Powder Metallurgy, PM, is an evolving production technology to manufacture, frequently netshape, a growing number of components of increasingly complex shapes from an expanding range of alloys.
Metallographic examination revealed grain/particle carbide films, thicker and continuous in the specimens sintered at 1310C, responsible for brittleness.
The microstructure of the material sintered at 1310C comprised Widmandstatten ferrite, propagating from the prior austenite grain boundaries, with tiny sub-micron carbides (i.e. ferrite + carbide) plus tempered martensite.

Markou et al. [10] studied the effect of many factors such as grain sizes, water to cement, superplasticizer, on effectiveness of cement grouting and compression strength and permeability coefficient.
Table 4 Collected datum of strain at different load Number 1 2 3 4 5 6 7 8 9 10 Load/KN 0 7.2 8.5 20.6 30 42.6 60 68 79 87 Strain/mm 0 0 0.75 3.46 6.22 9.31 11.4 12.64 13.96 15.71 It can be seen in Table 4 that at the first stage, the stress increased to 7.2 kN while the strain remained unchanged.
Pull-out strength of axially loaded steel rods bonded in glulam perpendicular to the grain [J].

The grains passed through #4 sieve.
The fine aggregate of the WMSWIBA was derived from the incinerator bottom ash in the south of Kaohsiung City, the grains passed through a #4 sieve, and the specific gravity was 2.21.
Table 3 shows that the cumulating plus sieve rates of WMSWIBA fine aggregate on the sieves of different numbers are higher than those of natural fine aggregate.

The copper layer finally obtained is uniform and compact, for the copper grain size is mostly the same and the gap between the particles is extremely small. 3.3 Electrochemical detection of copper deposition process Electroless plating was a process of redox reaction on the electrode at the same time.
Once the reaction started, formaldehyde began to be oxidized while a large number of Cu2 + was reduced, so the Cu2+ of the electrode’s surface was almost all consumed and the Cu2+ of the plating solution could not supply in time.
(2)Uniform copper particles could be obtained quickly, once the polyurethane resin catalyst is immersed in the electroless copper plating bath, with the extension of time, the copper layer finally obtained is dense and compact, the copper grain size is mostly the same and the gap between the particles is extremely small

Saline playa is mainly composed of loose lacustrine salt-rich sediments in fine grain form [5,6].
In this period, blown by strong wind, the saline sediments were seriously eroded and the number of salt dust storm days would increase in consequence.
Li, The influence of dry lakebeds, degraded sandy grasslands and abandoned farmland in the arid inlands of northern China on the grain size distribution of East Asian aeolian dust, Environ Geol. 53 (2008) 1767–1775

The wear resistance of Al-Si alloys depends on a number of material related parameters, i.e., size, shape, composition and distribution of micro-constituents, in addition to service conditions [2,3].
However, the primary Si particles formed in the hypereutectic Al-Si alloys produced by casting methods, even though modified to refine them, are larger, and the Si particles themselves are hard and brittle, which causes the serious disseverance to the matrix and stress concentration at the tips or edges of the primary Si particles, leading to the cracking at the grain boundary or in primary silicon particles oneself, thereby, the mechanical properties, especially the elongation are significantly reduced [4].
It is important that the CDS method accomplishes the same task efficiently without the additional cost of grain refiners.

For example, egg shell membrane, plant leaves, insect wings, bacterial, DNA, and flower pollen grains have been selected as template to produce various advanced biomimetic inorganic oxide[9-15].
The BJH (Barret-Joyner-Halenda) calculation revealed a narrow distribution for the sample centered at 1-4 nm, proving that biomorphic TiO2 contains large numbers of mesopores, which agrees with TEM test.
Mann, Morphosynthesis of complex inorganic forms using pollen grain templates, Chem.

It consists in causing grains of metal powder to adhere to the surface of expanded polystyrene balls, using an organic binder by using a fluidized bed and then using a thermal sintering technique on a set of the spheres once they have been brought into contact.
Only one step is needed to eliminate the organic components (polystyrene and binder), densify the shells by sintering with grains of powder and assemble the spheres together.
As a indeterminated number of hollow spheres are open because of defect in their shell or because of the sample cutting, the exposed surface of the samples is difficult to determine precisely, the results are given in terms of a simple mass rather than a mass per unit surface.

The cultivation of grain is a dominant industry of agriculture in Latvia.
The total production of grain reached 2.7 million tonnes in the year 2019 of which buckwheat amounted to 28.3 thousand tonnes.
The catalyst with a larger surface area and smaller crystallite size has a larger number of active sites are available.

., no grain boundary porosity exists and still have a few micro-particles in the texture.
With decrease of bi-layer thickness, the four Bragg reflection peaks shifted to higher single angle side, respectively, by mutual diffraction interference due to the grain size decrease from 2.43 down to 1.15 nm, resulting in the superlattice coating formed as show a high resolution TEM in Fig. 1. 30 40 50 60 70 80 TiN CrN 116 nm 95 nm 42 nm 18 nm 8 nm 6 nm 5 nm 4 nm 3 nm 2 nm CrN(311) TiN(311) CrN(220) TiN(220) CrN(200) TiN(200) CrN(111) TiN(111) Intensity (a.u) 2 Theta Fig. 1 Typical SEM cross-section and HRTEM image of a nanoscaled TiN/CrN multilayer structure (S9).
Acknowledgments The authors gratefully acknowledge the National Science Council, Taiwan for funding support under contract number NSC 94-2745-E-451-008-URD.