Thermoelectric properties of CNTs/Mn0.7Zn0.3Fe2O4 composite fabricated by spark plasma sintering

Zhang, Shupin; Li, Aimin; Sun, Kangning; Sun, Xiaoning; Wang, Sumei; Liu, Zhaojun

doi:10.1088/2053-1591/3/10/106303

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…Impurity peaks of Fe 2 O 3 and Zn appear as the CNT content increases. This could be due to ferrite decomposition caused by the local high temperature between the powder particles during SPS [8]. The grain size is increased after sintering, and CNTs are dispersed in the grains as shown by the arrows.…”

Section: Mema-2023 Journal Of Physics: Conference Series 2557 (2023) ...mentioning

confidence: 99%

The Correlation Between the Temperature Control Effect and Thermoelectric Properties of CNTs/Mn-Zn Ferrite Composites

Zhang

2023

J. Phys.: Conf. Ser.

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Mn-Zn ferrite has been widely used in cancer therapy. In this paper, CNTs/Mn-Zn ferrite composites with different CNT contents were synthesized using the co-precipitation process and then sintered into bulk materials by SPS. The nanoparticles have good heating and temperature control effects under an alternating magnetic field. Furthermore, the sintered composites have thermoelectric properties. The correlation between the temperature control mechanism and the thermoelectric properties of manganese zinc ferrite for thermotherapy is investigated.

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Section: Mema-2023 Journal Of Physics: Conference Series 2557 (2023) ...mentioning

confidence: 99%

The Correlation Between the Temperature Control Effect and Thermoelectric Properties of CNTs/Mn-Zn Ferrite Composites

Zhang

2023

J. Phys.: Conf. Ser.

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“…[34] Our results also raise the idea that 2-terminal performance may be improved via infiltration of other highly conducting materials, for instance carbon nanotubes or YSZ. [35,36] In conclusion, we have prepared CaMn0.98Nb0.02O3 materials and investigated the role of open porosity and metallic Ag infiltration on their TE properties. We find that the TE properties of these oxides are reduced by several orders of magnitude when connected in 2terminal geometry, but their promising properties are fully recovered through Ag infiltration.…”

Section: Comparing These Observations With the Calculated Maximum Of Ag Given The Open Porositymentioning

confidence: 99%

Recovery of the intrinsic thermoelectric properties of CaMn0.98Nb0.02O3 in 2-terminal geometry using Ag infiltration

Boldrin

Ruiz‐Trejo

et al. 2017

Acta Materialia

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Oxide based thermoelectric (TE) materials offer several advantages over currently used intermetallic alloys due to their chemical and thermal stability at high temperatures, non-toxic elements, low cost and ease of manufacture. However, incorporation of oxides into thermoelectric generators (TEGs) is hindered by factors such as the requirement for polycrystalline materials over single crystals and the large electrode/ceramic contact resistances. The latter significantly limits the performance efficiency of a working TEG. Here we report the TE properties of Ag infiltrated polycrystalline CaMn0.98Nb0.02O3 ceramics. We demonstrate that by using this route the intrinsic TE properties of this material are fully recovered in 2-terminal geometry through Ag infiltration, thereby overcoming the electrode TEG contact problem. This synthetic route provides opportunities for bridging the performance gap between the intrinsic TE and TEG device properties of oxides.

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Heat-Generating Mn0.5Zn0.5Fe2O4/MWCNTs nanocomposites for enhancing hyperthermia efficacy in magnetic hyperthermia applications

Shen¹,

Yan²,

Gao³

et al. 2022

Journal of Alloys and Compounds

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Thermoelectric properties of CNTs/Mn_0.7Zn_0.3Fe₂O₄ composite fabricated by spark plasma sintering

Cited by 3 publications

References 25 publications

The Correlation Between the Temperature Control Effect and Thermoelectric Properties of CNTs/Mn-Zn Ferrite Composites

The Correlation Between the Temperature Control Effect and Thermoelectric Properties of CNTs/Mn-Zn Ferrite Composites

Recovery of the intrinsic thermoelectric properties of CaMn0.98Nb0.02O3 in 2-terminal geometry using Ag infiltration

Heat-Generating Mn0.5Zn0.5Fe2O4/MWCNTs nanocomposites for enhancing hyperthermia efficacy in magnetic hyperthermia applications

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