Corrigendum to “Optimization of polarizer azimuth in improving domain image contrast in magneto-optical Kerr microscope” [J. Magn. Magn. Mater. 399 (2016) 19–21]

Wang, X.; Lian, Jiqing; Li, P.; Li, X.; Li, M.M.; Wang, Y.; Liu, Y.X.

doi:10.1016/j.jmmm.2017.09.060

Cited by 10 publications

(11 citation statements)

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“…The minimum RL of the CI composites shifted from 9.3 to a lower frequency of 5.0 GHz with increasing filler loading. As shown in Table , the CI composites had a wide absorption band between 1.0 and 14.1 GHz (RL < −20 dB), depending on the thickness and loading . The Fe‐containing composites showed the effective absorption of RL < −20 dB at 0.9–14.8 GHz .…”

Section: Resultsmentioning

confidence: 94%

“…As fillers in these applications, carbonyl iron (CI), carbon, carbon nanotube (CNT), and magnetic compounds containing Fe, Co, and Ni improve the electromagnetic absorption properties. Epoxy, resins, and rubbery polymers as base polymer/binder materials have been used as wave‐absorption materials with these fillers. Conversely, researchers normally focus their investigations on the development and improvement of novel absorption filler particles rather than on base polymer materials.…”

Section: Introductionmentioning

confidence: 99%

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Development of biobased microwave absorbing composites with various magnetic metals and carbons

Kanehashi

Oyagi

Iwamaru

et al. 2016

J of Applied Polymer Sci

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The preparation and characterization of a biobased electromagnetic absorbing composites derived from natural lacquer as a renewable resource with microwave‐absorption fillers, including Ni–Zn ferrite and carbonyl iron (CI) as magnetic metals and soot and carbon nanotube (CNT) as carbon materials, were investigated in terms of the gel content, hardness, drying properties, and electromagnetic absorption properties. Interestingly, composites with ferrite and CI contained up to 320 and 550 wt %, respectively, of these compounds. This quite high loading capacity of the metal fillers in a natural‐lacquer base could have been due to the high compatibility between the filler and the natural lacquer; this indicated that the natural lacquer worked as a binder for these metals. The morphology of the biobased composite was characterized by scanning electron microscopy. The electromagnetic absorption properties of composites were characterized in the frequency range from 0.05 and 20 GHz by the reflection loss (RL) measurement method in terms of the kind of fillers and filler loading. The natural lacquer did not affect the absorption properties of the fillers. Biobased composites showed over 99% electromagnetic absorption in the frequency range 3.0–4.0 GHz for 280 wt % ferrite and 8.9–9.7 GHz for 200 wt % CI. Conversely, 10 and 20 wt % soot exhibited good performance (RL < −20 dB) between 16.5 and 17.3 and between 8.8 and 9.2 GHz, respectively. The areas with RL values of less than −20 dB of the CNT composites were 10.4–11.0 GHz for 5 wt % and 14.6–15.2 GHz for 10 wt %. Hence, natural lacquer can be used as a binder material for electromagnetic absorption composites. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44131.

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Development of biobased microwave absorbing composites with various magnetic metals and carbons

Kanehashi

Oyagi

Iwamaru

et al. 2016

J of Applied Polymer Sci

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“…However, when the CIP content raised to 200 phr, the EB was drastically broaden to 4.5 GHz, and even achieved at 6.2 GHz when CIP content increased to 400 phr, indicating both of the samples CIP‐200 and CIP‐400 possessed good microwave absorbing properties. And the f m shifted to the low frequency range with the CIP content increased, which was attributed to the enhanced electromagnetic parameters according to the quarter‐wavelength theory …”

Section: Resultsmentioning

confidence: 96%

Microwave absorbing and mechanical properties of alternating multilayer carbonyl iron powder‐poly(vinyl chloride) composites

Gao

et al. 2017

J of Applied Polymer Sci

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Polymeric composites filled with magnetic absorbents have been used extensively as microwave absorbing materials. However, their high filler content obstructed the application. In order to optimize the filler content and further improve the microwave absorbing properties, alternating multilayer carbonyl iron powder (CIP)/poly(vinyl chloride) (PVC) composites were designed and prepared by stacking neat PVC and CIP filled PVC alternately. The microwave absorbing properties were theoretically calculated by the transmission line theory and experimentally measured by the arch method, respectively. The experimental results were consistent with the calculated ones, which demonstrated that the alternating multilayer structure design can significantly improve the microwave absorbing property without increasing the filler content. The consistent results also demonstrated that the reflection loss (R L ) of the multilayer composites was strongly dependent on the layer number and layer arranging sequence. The minimum R L (R L -min) and effective bandwidth were exponentially dependent on the layer number. And the dependencies of the R L -min and effective bandwidth on layer number exhibited a "regularity reversal" phenomenon when different layers faced to the incident wave. The mechanical property test showed that the alternating multilayer composites possessed enhanced tensile strength and elongation at break as the layer number increased.

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“…The negative correlations do not however lead to the magnetic order in the whole sample, as no magnetic transition was observed even at the lowest temperatures. [17]. One can see that such simple approach is justifiable only for 40 K and 20 K, while the possible short range magnetic order at T < 20 K needs a more advanced description.…”

Section: Magnetic Origin Of the Line Broadening In D3?mentioning

confidence: 99%

Revealing magnetic component in crystalline Fe-gluconate

Dubiel

Żukrowski

Bałanda

2020

Journal of Magnetism and Magnetic Materials

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Low temperature Mössbauer spectroscopic and magnetization measurements were performed on a crystalline sample of Fe-gluconate. Fe atoms were revealed to exist in two "phases" i.e. a major (90-94%) and a minor (6-10%). Based on values of spectral parameters the former can be regarded as ferrous and the latter as ferric ions. A sub spectrum associated with the ferric "phase" shows a significant broadening below 30 K corresponding to 7.5 kGs. A magnetic origin of the effect was confirmed by the magnetization measurements. Evidence on the effect of the magnetism on the lattice vibrations of Fe atoms in both "phases" was found. The Debye temperature, T D , associated with the vibrations of Fe 2+ ions is by a factor of 2 smaller in the temperature range below 30 K than the one determined from the data measured above 30 K. Interestingly, the T D -value found for the Fe 3+ ions from the data recorded below30 K is about two times smaller than the corresponding value determined for the Fe 2+ ions.

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Corrigendum to “Optimization of polarizer azimuth in improving domain image contrast in magneto-optical Kerr microscope” [J. Magn. Magn. Mater. 399 (2016) 19–21]

Cited by 10 publications

References 0 publications

Development of biobased microwave absorbing composites with various magnetic metals and carbons

Development of biobased microwave absorbing composites with various magnetic metals and carbons

Microwave absorbing and mechanical properties of alternating multilayer carbonyl iron powder‐poly(vinyl chloride) composites

Revealing magnetic component in crystalline Fe-gluconate

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