Annealing, nanostructures

A., Valette, S., and Fauchais, P. (2010) Quantification of void networks of as-sprayed and annealed nanostructured yttria-stabilized zirconia (YSZ) deposits manufactured by suspension plasma spraying. Surf. Coat. Technol., 205 (3), 683-689. 

FIELD ENHANCEMENT NEAR THE ANNEALED NANOSTRUCTURED GOLD DETECTED BY OPTICAL SPECTROSCOPY WITH THE PROBE... 

Table 1. Nanostructure of some investigated systems obtained by sequential ion implantation without subsequent annealing.

In general, annealing has been used to either form or improve the structures of compound films formed by the electrodeposition methods described above. This severely limits applications in systems where more complex structures are involved, structures where interdiffusion is a problem nanostructured materials. 

Fig. 11.6 Absorption spectra K restored from diffuse reflection R by using the Kubelka-Munk equation. Spectra 1, 2, and 3 are initial nanostructures, hydrogenated and annealed at 700°C during 6 h, respectively, (a) Spectra of NFs, (b) SWNTs. Dashed curves are Drude approximation of the absorption spectra, K = A. v0 5...

For free-clusters, the cluster size distribution can be measured by the time-of-flight mass spectrometer for cluster films deposited on substrate by the cluster beam, the measurement of size distribution and observation of nanostructure are mostly done using transmission electron microscopy (TEM). In this section we will focus on the latter and pay special attention to FePt, CoPt clusters which have high anisotropy Tl0 phase after annealing [43-45]. For the TEM observations, FePt, CoPt nanoclusters, produced in a gas-aggregation chamber, in which high pressure Ar gas ( 0.5-lTorr) was applied and cooled by LN2, were directly deposited onto carbon-coated films supported by Cu grids. 

Nanostructured particles are easily produced by sonochemically treating volatile organometallic precursors. The powders formed are usually amorphous, agglomerated, and porous. To get the crystalline phases, these powders must be further annealed however, this annealing temperature is lower than that needed... 

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