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2 results on '"Iron compounds -- Acoustic properties"'

1. Gigahertz range electromagnetic wave absorbers made of amorphous-carbon-based magnetic nanocomposites

Author

Jiu Rong Liu, Itoh, Masahiro, Horikawa, Takashi, Machida, Ken-ichi, Sugimoto, Satoshi, and Maeda, Toru

Subjects
Iron compounds -- Acoustic properties, Iron compounds -- Magnetic properties, Carbon compounds -- Magnetic properties, Carbon compounds -- Acoustic properties, Electric waves -- Analysis, Electromagnetic radiation -- Analysis, Electromagnetic waves -- Analysis, Physics
Abstract

Nanocomposite magnetic materials alpha-Fe/C(a), Fe2B/C(a), and Fe1.4Co0.6B/C(a) is prepared by mechanically grinding alpha-Fe, Fe2B, or Fe1.4Co0.6B with amorphous carbon [C(a)] powders. Results suggest that the alpha-Fe/C(a), Fe2B/c(a), and Fe1.4Co0.6B/C(a) nanocomposite materials can be used as good electromagnetic (EM) wave absorbing materials in the 4.3-8.2 GHz, 7.5-16.0 GHz and 26.5-40 GHz, respectively.

Published
2005

2. Normal-mode analysis of FeCl(sub 4)(super -) and Fe2S2Cl(sub 4)(super 2-) via vibrational Mossbauer, resonance Raman, and FT-IR spectroscopies

Author

Smith, Matt C., Yuming Xiao, Hongzin Wang, George, Simon J., Coucouvanis, Dimitri, Koutmos, Markos, Sturhahn, Wolfgang, Alp, Ercan E., Jiyong Zhao, and Cramer, Stephen P.

Subjects
Iron compounds -- Spectra, Iron compounds -- Acoustic properties, Vibrational spectra -- Research, Chemistry
Abstract

The Fe nuclear resonance vibrational spectroscopy (NRVS) data for the FeCl(sub 4)(super -) ion in the solid state with NEt(sub 4)(super +) or P(C6H5)(sub 4)(super +) counterions and for the [Fe2S2Cl4](super 2-) cluster with NEt(sub 4)(super +) counterions and also their Raman and far-infrared (IR) spectra are described. The advantages of a combined NRVS, Raman, and IR approach to characterization of Fe-S complexes are discussed.

Published
2005

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