Studies on the properties of Ni0.6Cu0.4Mn2O4 NTC ceramic due to Fe doping

Jadhav, R. N.; Mathad, S. N.; Puri, Vijaya

doi:10.1016/j.ceramint.2012.03.024

Cited by 100 publications

(30 citation statements)

References 28 publications

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“…NTC thermistors have also been applied in thermal sensors used for measuring low volume liquid flow or gas flow [4][5][6]. Nickel manganite based spinel oxides are most common NTC materials due to their low cost, ease of manufacturing and good thermistor properties [7,8]. Nickel manganite has a cubic spinel structure (space group Fd3m) of the general formula AB 2 O 4 with cations situated on both tetrahedral (A-sites) and octahedral (B sites).…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors

Aleksić

Nikolić

Luković

et al. 2013

Materials Science and Engineering: B

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors

Aleksić

Nikolić

Luković

et al. 2013

Materials Science and Engineering: B

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“…Thermistor with NTCR has been widely used not only  in various industrial and domestic applications pertaining to temperature monitoring, control and compensation, etc., but also in laboratory and medical procedures. NTCR thermistor is widely used in the world due to its potential use for many applications, such as temperature measurement, circuit compensation, suppression of inrush current, flow rate sensor, pressure sensor, aerospace, and automotive temperature measurement [5][6][7]. Along with the advances in modern technology, demand for precise temperature measurement and control has increased.…”

Section: Introductionmentioning

confidence: 99%

CaTiO3 nano ceramic for NTCR thermistor based sensor application

2014

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Abstract:It is possible to fabricate highly sensitive NTCR (negative temperature coefficient of resistance) thermistor using nano crystalline CaTiO 3 synthesized by high energy ball milling. Disc shaped green pellets were prepared and effects of sintering on the disc pellets were studied as thermistor by sintering the samples at 1000 ℃, 1100 ℃ and 1200 ℃. The as-prepared samples were characterized by X-ray diffraction (XRD), impedance analysis and electrical measurement. The resistivity of the prepared samples varies predictably with temperature: this makes them promising material for temperature sensor. The experimental results prove that nano crystalline CaTiO 3 ceramic is one kind of thermistor with exponential negative temperature coefficient of resistance in the temperature range of 300-500 ℃. The samples have the advantages of rapid response, high sensitivity and capability to withstand thermal surges over the temperature range of 300-500 ℃. Resistance-temperature characteristics are described by thermistor equation with thermistor constant around 4003 K to 10795 K and thermal coefficient of resistance α around 1%/℃ to 13%/℃. The activation energy is in the range of 0.34-0.93 eV. The observed thermistor parameters are found to be comparable with many of the known thermistor materials. This suggests that the electrical properties can be adjusted to desirable values by controlling the temperature parameter. The influence of fabrication process of disc thermistor and electrical properties are discussed. The study shows the potential of nano crystalline CaTiO 3 to act as an NTCR material for thermistor applications.

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“…In addition, the sample preparation method affects the oxygen content and the distribution of the cations on the different crystallographic sites, which makes the microstructure and the electrical properties quite different. For example, the resistivity of thin films is different with that of bulk ceramics, which is due to the different densification and grain size [15][16][17][18].…”

Section: Introductionmentioning

confidence: 98%

Preparation routes and electrical properties for Ni0.6Mn2.4O4 NTC ceramics

Liu

Lü

2015

J Mater Sci: Mater Electron

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Ni 0.6 Mn 2.4 O 4 negative temperature coefficient ceramics were prepared by using solid-state coordination reaction and traditional solid-state methods, their structures and properties were characterized by using scanning electron microscopy, powder X-ray diffractometer and temperature dependent resistivity test. For solid-state reaction powders, the calcination temperature necessary for formation of the spinel phase was 1000°C, which is 300°C higher than that of solid-state coordination reaction powders. Regardless of preparation routes, the ceramics were crystallized in a single cubic spinel structure when the sintering temperature was lower than or equal to 1150°C, Mn 3 O 4 impurity phase was detected when the sintering temperature raised to 1200°C. Having higher densities and bigger grain sizes, the solid-state coordination reaction samples had smaller room temperature resistivities and larger B 25/50 values as compared with those of solid-state samples.

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Studies on the properties of Ni0.6Cu0.4Mn2O4 NTC ceramic due to Fe doping

Cited by 100 publications

References 28 publications

Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors

Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors

CaTiO3 nano ceramic for NTCR thermistor based sensor application

Preparation routes and electrical properties for Ni0.6Mn2.4O4 NTC ceramics

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