Synthesis of porous iron oxide ceramics using Greek wooden templates and mill scale waste for EMI applications

Bantsis, G.; Betsiou, M.; Bourliva, Anna; Yioultsis, Traianos V.; Sikalidis, C.

doi:10.1016/j.ceramint.2011.07.064

Cited by 28 publications

(18 citation statements)

References 20 publications

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“…Scanning electron microscopy observations on a polished section of a purple‐colored burnt daub sample (Figure a) and a nonpolished piece (Figure c) reveal the morphology typical of high‐temperature vitrification processes: presence of large voids due to gaseous phase evaporation, melting, and formation of dendrite‐like structures (Figure b). A higher‐resolution zoom into a nonpolished sample (Figure d) shows high resemblance to the so‐called “ceramic wood” or “porous ceramics” (Bantsis et al, ; Liu et al, ; Mizutani et al, ) employed nowadays for thermal insulation, high‐temperature filtration, catalysis, etc. EDS analyses in selected spots denoted by numbers in Figure give further insight into the chemical composition of the different parts of the sample (Tables S2 and S3).…”

Section: Resultsmentioning

confidence: 87%

A Mineral Magnetic Approach to Determine Paleo‐Firing Temperatures in the Neolithic Settlement Site of Mursalevo‐Deveboaz (SW Bulgaria)

Jordanova

Kostadinova‐Avramova

et al. 2018

JGR Solid Earth

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Archeological remains from the Neolithic period in SE Europe are characterized by the presence of massive burnt daub relics sintered at high temperatures. These findings raised the hypothesis of deliberate house burning as a strategy for ensuring the survival of place and the development of social memory in Neolithic society. Although highly discussed in the archeological community, analytical data on the ancient firing temperatures achieved during burning Neolithic houses are missing except an empirical study determining firing temperatures according to the color of burned clay. The Neolithic site Mursalevo‐Deveboaz (Bulgaria) is one of the largest known settlements consisting of more than 70 houses. Rock‐magnetic analyses are applied for characterization of iron oxides produced during firing, and the firing temperatures were estimated using the magnetic susceptibility method. Results on a collection of 445 samples show the presence of very fine grained magnetite/maghemite and hematite. Magnetic data are supported by elemental analysis, reflectance spectroscopy, and scanning electron microscopy. The data suggest an increase in the magnetic grain size from superparamagnetic toward single domain with increasing firing temperature. Firing temperature estimates for 148 samples of different color vary between 680 and 1,140°C. Comparing the magnetic properties of iron oxides identified and literature data on solution‐combustion synthesis of iron oxides allowed a mechanism behind the extreme firing of Neolithic houses to be suggested. Our study proposes for the first time that combustion synthesis of iron oxides could explain the extreme house burning in many Neolithic settlements achieved through intentional addition of wood, dung and urine.

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Section: Resultsmentioning

confidence: 87%

A Mineral Magnetic Approach to Determine Paleo‐Firing Temperatures in the Neolithic Settlement Site of Mursalevo‐Deveboaz (SW Bulgaria)

Jordanova

Kostadinova‐Avramova

et al. 2018

JGR Solid Earth

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“…The eddy current losses may be responsible for magnetic loss at higher frequency range [22]. Table 1 shows the comparison of frequency dependent dielectric and magnetic values of the electronic-waste composite material with recent reported work investigated by Bantsis et al in X-band frequency range [23,24]. The negative trend has been observed in the imaginary part of permeability (μ″) for both the wooden templates as well as metallurgical slags and scrap tire cement paste based composites, similar trend has been observed for the electronic-waste composite material.…”

Section: Resultsmentioning

confidence: 90%

A cost effective solution for development of broadband radar absorbing material using electronic waste

Panwar

Agarwala

Singh

2015

Ceramics International

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“…Hence, woodceramics are porous composite materials composed of amorphous carbon and glassy carbon [12]. Interesting applications of woodceramics have been found, such as thermal insulation, high-temperature filtration, and catalysis [13,14,15]. …”

Section: Introductionmentioning

confidence: 99%

Effects of Carbonization Temperature and Component Ratio on Electromagnetic Interference Shielding Effectiveness of Woodceramics

Tao

2016

Materials

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Woodceramics were fabricated in a vacuum through carbonization of wood powder impregnated with phenol formaldehyde (PF) resin. The effects of carbonization temperature and mass ratio of wood/resin on electromagnetic interference (EMI) shielding effectiveness (SE) and morphology of woodceramics were explored. The PF resin made wood cell walls have the characteristics of glassy carbon. Wood axial tracheid and ray cells were filled with more glassy carbon by increasing addition of PF resin. Moreover, the increase of carbonization temperature was beneficial to improving SE. Woodceramics (mass ratio 1:1) obtained at 1000 °C presented a medium SE level between 30 MHz and 1.5 GHz.

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Synthesis of porous iron oxide ceramics using Greek wooden templates and mill scale waste for EMI applications

Cited by 28 publications

References 20 publications

A Mineral Magnetic Approach to Determine Paleo‐Firing Temperatures in the Neolithic Settlement Site of Mursalevo‐Deveboaz (SW Bulgaria)

A Mineral Magnetic Approach to Determine Paleo‐Firing Temperatures in the Neolithic Settlement Site of Mursalevo‐Deveboaz (SW Bulgaria)

A cost effective solution for development of broadband radar absorbing material using electronic waste

Effects of Carbonization Temperature and Component Ratio on Electromagnetic Interference Shielding Effectiveness of Woodceramics

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