Page 105 - Book Hosokawa Nanoparticle Technology Handbook

2.4 COMPOSITE STRUCTURE FUNDAMENTALS

Compound, Solid solution Coating Dispersed multicomponent
particle particle particle
A A

B
AB B
C D

Figure 2.4.3
Composite structure of the nanoparticle.

20 nm

Figure 2.4.4
(CeO ) /(ZrO ) nanoparticles (solid solution).
2 x
2 1 x
Figure 2.4.5
(La Sr )MnO nanoparticles.
x 1 x 3
structure can have the characteristics of each com-
posing metal oxide, it can potentially be used to
increase the affinity of the particle (in this case, the approximately homogeneous dispersion of each
part of the oxide A of the coated particle in component in its structure. In addition, Fig. 2.4.11
Fig. 2.4.3) to the resin and restraint its deterioration shows nanoparticles of Al O –SiO with the struc-
2
3
2
due to the contact between the particle and the resin ture of the dispersed multi-components. Minute
(in this case, the part of the oxide B of the coated par- crystalline Al O can be found in the amorphous
2
3
ticle in Fig. 2.4.3). The dispersed multi-component SiO by X-ray diffraction in this case, as shown in
2
nanoparticle in Fig. 2.4.3 represents the oxide A Fig. 2.4.12.
encapsulating the oxides B, C, and D as shown in Multi-component oxide consisting of more than two
Fig. 2.4.9. Figure 2.4.10 shows the elements analyzed kinds of metal elements can often have unique func-
by EDX at two locations (Spot u and Spot v) on the tionality, such as semiconduction, ferromagnetism,
nanoparticle consisting of the oxides of Al, Ca, Si, Ti, ferroelectricity, and piezoelectric. Combining different
and Zr in Fig. 2.4.9. It is found that the particle has kind of metal elements through oxygen-binding and
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