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Therefore, the hydroxide co-precipitation method was chosen due to its simple procedure, high homogeneity, relatively narrow grain size distribution, and can be performed on various materials and atmospheric operating conditions.
Manganese is a transition metal cheaper than cobalt, has many raw materials available, does not have harmful biological effects [103–107], has more than five valence numbers with the majority being Mn2+ or Mn3+, and is also used in batteries, animal feed, brick dye and fertilizers [108].

Finally, numerical results for the total plastic dissipation per cycle can be directly compared to measurements of dissipated energy during fatigue crack growth, which have been reported in the literature by a number of researchers [16-24,26].
Thus, one should be careful in interpreting such results for cases when the reversed plastic zone approaches the grain size of the material.

Electrospray is a popular atomization method due to the simplicity of preparation and the various number of variables that can be altered to achieve the desired particle properties.
Sudhahar, “Green synthesis of silver oxide nanoparticles using Panicum miliaceum grains extract for biological applications,” Adv.

The major variables that induce ballast breaking are the properties of the parent rock, such as hardness and toughness, specific gravity, mineralogical composition, grain size, internal bonding, surface smoothness related to crushing, dynamic loading pattern, which includes train speed and frequency and ballast gradation [2,3](Buddhima Indraratna et al., 2020); (B.
Even through the inclusion of synthetics, the axial and radial stresses of the ballast sample progressively rise with the increase in the number of hammer drops.

The space needed to accommodate a large number of small particles is larger than the space occupied by the large particle from which the small particles are formed, the volume of all the small particles together being equal to the volume of the large particle.
On top of that, and in parallel with the shrinkage triggered by capillary forces, the dissolution of cement grains and the formation of reaction products may go along with expansion of the system.

A number of other biomineralization proteins and peptides are able to facilitate the formation of materials in vitro such as gold [34, 35], silver [36], silica [37], palladium [38, 39], iron platinum [40], cobalt platinum [41] and some semiconductors [42, 43].
Lee, Size-dependent reversal of grains in perpendicular magnetic recording media measured by small-angle polarized neutron scattering, Appl.

The increase in the number of industries in Indonesia has led to high environmental pollution due to the direct disposal of hazardous industrial waste, such as ferrous metal (Fe), into the environment, thereby reducing soil fertility and disturbing the ecological balance [16,17].
Method Particle Form Particle Size [nm] Reference Co-precipitation Composed porous carbon 10.550 [31] Co-precipitation Spherical 20 [76] Co-precipitation Spherical 2,000-4,000 [70] Co-precipitation Fine particles 100-200 [69] Hydrothermal Plate-type 200 [111] Hydrothermal Particle 100-150 [112] Hydrothermal - 100 [2] Hydrothermal Thick tiles 240 [113] Hydrothermal - 400 [114] Sol-gel Spherical 50-100 [100] Sol-gel Sponge-like porous particles 125 [115] Sol-gel Larger agglomerated grains 50 [101] Sol-gel - 100-200 [116] Sol-gel Porous 1-3 [105] Table 11 shows that each LiFePO4 synthesis method produces different particle sizes and shapes.

It also depends on the microstructure when the FFPV is the same size as critical microstructure attributes such as grain size [18-21].
The magnitude of the misorientations depends on the relative slip amplitude and number of cycles [93].

It is composed mostly of coarse-grained quartz and feldspars in varying proportions.
In the case of M20-S2, a significant increase in the amount of CSH rods with an observed increase in the crystal size and/or numbers of both NASH and CASH phases.

However, a number of observations indicate it does not reflect original structure: similar polygonal networks also occur in other fossils in the assemblage, including those distantly related to Watsonella; occasionally polygons within one layer become diffuse and enlarged in certain directions; in Igorella from nearby localities [28], the same texture appears as a coating over external moulds (Fig. 4.2); and a similar texture occurs on phosphate fill inside an internal mould (Fig. 4.4).
Thus, structural information is transferred from the parent to the product mineral such that we can infer the crystallographic orientation of the original calcite grains by examining the crystallographic orientation of the replacing apatite.