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Electrical conductivity & temperature sensitivity of ceramics based on NiO simple oxides for NTC applications

LiF-doped NiO ceramics with various contents of B 2 O 3 /SiO 2 additives were prepared by a wet-chemical synthesis method. The phase component and micro-structures of the ceramics were detected by using X-ray diffraction, scanning electron microscope and X-ray photoelectron spectroscopy. The related... Full description

Journal Title: Journal of Materials Science: Materials in Electronics 2017, Vol.28(16), pp.11871-11877
Main Author: Guo, Ziyi
Other Authors: Shao, Junming , Lin, Heng , Jiang, Modi , Chen, Shiyuan , Li, Zhicheng
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0957-4522 ; E-ISSN: 1573-482X ; DOI: 10.1007/s10854-017-6995-2
Link: http://dx.doi.org/10.1007/s10854-017-6995-2
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recordid: springer_jour10.1007/s10854-017-6995-2
title: Electrical conductivity & temperature sensitivity of ceramics based on NiO simple oxides for NTC applications
format: Article
creator:
  • Guo, Ziyi
  • Shao, Junming
  • Lin, Heng
  • Jiang, Modi
  • Chen, Shiyuan
  • Li, Zhicheng
subjects:
  • X-Ray Spectroscopy – Electric Properties
  • Oxides – Electric Properties
  • Chemical Synthesis – Electric Properties
  • Electrical Conductivity – Electric Properties
  • Crystal Structure – Electric Properties
  • Electron Microscopy – Electric Properties
  • Ceramics – Electric Properties
ispartof: Journal of Materials Science: Materials in Electronics, 2017, Vol.28(16), pp.11871-11877
description: LiF-doped NiO ceramics with various contents of B 2 O 3 /SiO 2 additives were prepared by a wet-chemical synthesis method. The phase component and micro-structures of the ceramics were detected by using X-ray diffraction, scanning electron microscope and X-ray photoelectron spectroscopy. The related electrical conductivity and thermal sensitivity were investigated by analyzing the resistance–temperature characteristic and complex impedance spectra. The results show that the NiO-based ceramics have the cubic crystalline structure, and show the typical characteristic of negative temperature coefficient (NTC) of resistivity. The NiO-based ceramics, with various contents of B 2 O 3 /SiO 2 , have the NTC materials constant B values ranging from 3500 to 3800 K. The substitution of B 2 O 3 /SiO 2 affects obviously the room-temperature resistivity of the ceramics, but has insignificant effect in the B values. The band conduction and electron hopping models are proposed for the conduction mechanisms for the NiO-based ceramics.
language: eng
source:
identifier: ISSN: 0957-4522 ; E-ISSN: 1573-482X ; DOI: 10.1007/s10854-017-6995-2
fulltext: fulltext
issn:
  • 1573-482X
  • 1573482X
  • 0957-4522
  • 09574522
url: Link


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titleElectrical conductivity & temperature sensitivity of ceramics based on NiO simple oxides for NTC applications
creatorGuo, Ziyi ; Shao, Junming ; Lin, Heng ; Jiang, Modi ; Chen, Shiyuan ; Li, Zhicheng
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descriptionLiF-doped NiO ceramics with various contents of B 2 O 3 /SiO 2 additives were prepared by a wet-chemical synthesis method. The phase component and micro-structures of the ceramics were detected by using X-ray diffraction, scanning electron microscope and X-ray photoelectron spectroscopy. The related electrical conductivity and thermal sensitivity were investigated by analyzing the resistance–temperature characteristic and complex impedance spectra. The results show that the NiO-based ceramics have the cubic crystalline structure, and show the typical characteristic of negative temperature coefficient (NTC) of resistivity. The NiO-based ceramics, with various contents of B 2 O 3 /SiO 2 , have the NTC materials constant B values ranging from 3500 to 3800 K. The substitution of B 2 O 3 /SiO 2 affects obviously the room-temperature resistivity of the ceramics, but has insignificant effect in the B values. The band conduction and electron hopping models are proposed for the conduction mechanisms for the NiO-based ceramics.
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subjectX-Ray Spectroscopy – Electric Properties ; Oxides – Electric Properties ; Chemical Synthesis – Electric Properties ; Electrical Conductivity – Electric Properties ; Crystal Structure – Electric Properties ; Electron Microscopy – Electric Properties ; Ceramics – Electric Properties;
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titleElectrical conductivity & temperature sensitivity of ceramics based on NiO simple oxides for NTC applications
descriptionLiF-doped NiO ceramics with various contents of B 2 O 3 /SiO 2 additives were prepared by a wet-chemical synthesis method. The phase component and micro-structures of the ceramics were detected by using X-ray diffraction, scanning electron microscope and X-ray photoelectron spectroscopy. The related electrical conductivity and thermal sensitivity were investigated by analyzing the resistance–temperature characteristic and complex impedance spectra. The results show that the NiO-based ceramics have the cubic crystalline structure, and show the typical characteristic of negative temperature coefficient (NTC) of resistivity. The NiO-based ceramics, with various contents of B 2 O 3 /SiO 2 , have the NTC materials constant B values ranging from 3500 to 3800 K. The substitution of B 2 O 3 /SiO 2 affects obviously the room-temperature resistivity of the ceramics, but has insignificant effect in the B values. The band conduction and electron hopping models are proposed for the conduction mechanisms for the NiO-based ceramics.
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titleElectrical conductivity & temperature sensitivity of ceramics based on NiO simple oxides for NTC applications
authorGuo, Ziyi ; Shao, Junming ; Lin, Heng ; Jiang, Modi ; Chen, Shiyuan ; Li, Zhicheng
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abstractLiF-doped NiO ceramics with various contents of B 2 O 3 /SiO 2 additives were prepared by a wet-chemical synthesis method. The phase component and micro-structures of the ceramics were detected by using X-ray diffraction, scanning electron microscope and X-ray photoelectron spectroscopy. The related electrical conductivity and thermal sensitivity were investigated by analyzing the resistance–temperature characteristic and complex impedance spectra. The results show that the NiO-based ceramics have the cubic crystalline structure, and show the typical characteristic of negative temperature coefficient (NTC) of resistivity. The NiO-based ceramics, with various contents of B 2 O 3 /SiO 2 , have the NTC materials constant B values ranging from 3500 to 3800 K. The substitution of B 2 O 3 /SiO 2 affects obviously the room-temperature resistivity of the ceramics, but has insignificant effect in the B values. The band conduction and electron hopping models are proposed for the conduction mechanisms for the NiO-based ceramics.
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doi10.1007/s10854-017-6995-2
pages11871-11877
date2017-08