Some Aspects of a Self-Limiting Resistive Electric Heating Element

Oakes, Joseph A.; Sandberg, C.

doi:10.1109/tia.1973.349975

Cited by 21 publications

(10 citation statements)

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“…The basic manifestation of the macroscopic ET effect is that the application of a voltage beyond some threshold value yields a large increase of the macroscopic resistance [7][8][9][10][11]. This effect is exhibited in Fig.…”

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confidence: 92%

Electrical-Thermal Switching in Carbon-Black–Polymer Composites as a Local Effect

et al. 2003

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Following the lack of microscopic information about the intriguing well-known electrical-thermal switching mechanism in carbon-black-polymer composites, we applied atomic force microscopy in order to reveal the local nature of the process and correlated it with the characteristics of the widely used commercial switches. We conclude that the switching events take place in critical interparticle tunneling junctions that carry most of the current. The macroscopic switched state is then a result of a dynamic-stationary state of fast switching and slow reconnection of the corresponding junctions.

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confidence: 92%

Electrical-Thermal Switching in Carbon-Black–Polymer Composites as a Local Effect

et al. 2003

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“…Composites of semicrystalline polymers and conducting particles show positive temperature coefficient effects of resistivity over a temperature range around the melting point ( T m ) of the matrix 1–6. In important industrial applications to self‐regulating heaters, the applied electric current is quite large, so marked self‐heating is generated 7–11. These composites possess nonlinear conduction characteristics12–14 under a quite high electric field that modifies the electrical contact of the particles and thus restricts the current passing through samples.…”

Section: Introductionmentioning

confidence: 99%

Influence of irradiation crosslinking on the self‐heating and conduction of an acetylene carbon black filled high‐density polyethylene composite in the electric–thermal equilibrium state

Song

Zheng

2008

J of Applied Polymer Sci

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ABSTRACT:The electric self-heating and conduction behaviors of a high-density polyethylene/acetylene carbon black composite crosslinked with electron-beam irradiation are studied with respect to the electric field and ambient temperature. On the basis of scaling arguments, the critical fields and current densities for the onsets of self-heating and global electrical breakdown are discussed with respect to the intrinsic resistivity at a given ambient temperature as well as the irradiation dosage.

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“…[1][2][3][4][5][6] In important industrial applications such as excess current protection and self-regulating heaters, 7,8 a considerably high voltage usually leads to local Joule heating as well as global resistance switching and a current decay until a stationary "switched" state is reached. 9,10 The dynamic processes of conduction in conductive polymer composites 10 -21 have attracted considerable attention.…”

Section: Introductionmentioning

confidence: 99%

Influence of irradiation crosslinking on time dependences of conduction and self‐heating in acetylene carbon black filled high‐density polyethylene composites

Song

Zheng

2006

J of Applied Polymer Sci

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ABSTRACT:The time dependences of electrical conduction and self-heating in high-density polyethylene/acetylene carbon black composites crosslinked with electron beam irradiation at three different dosages are studied in relation to voltage and ambient temperature. The characteristic decay current constant ( i ) and the exponential growth time constant for self-heating ( g ) are determined for the samples under voltages (U) above the onset voltage (U c ) of self-heating. The influence of crosslinking on the current decay dynamics, self-heating process, and amplitude of the resistance switching under field action are discussed.

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Some Aspects of a Self-Limiting Resistive Electric Heating Element

Cited by 21 publications

References 1 publication

Electrical-Thermal Switching in Carbon-Black–Polymer Composites as a Local Effect

Electrical-Thermal Switching in Carbon-Black–Polymer Composites as a Local Effect

Influence of irradiation crosslinking on the self‐heating and conduction of an acetylene carbon black filled high‐density polyethylene composite in the electric–thermal equilibrium state

Influence of irradiation crosslinking on time dependences of conduction and self‐heating in acetylene carbon black filled high‐density polyethylene composites

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