Electrical Properties

Martin, Hans-Peter; Adler, J.

doi:10.1002/3527606696.ch4d

Cited by 7 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…reported a decrease in the electrical resistivity of α‐SiC from ∼1.12 × 10 2 to ∼3.2 × 10 0 Ω ·cm at a porosity of ∼33% with an increase in the electrical resistivity measurement temperature from 25 to ∼700°C for the samples sintered in vacuum, as shown in Figure 2A. The decrease in the electrical resistivity with an increase in the measurement temperature was due to the mobilisation of charge carriers by the thermal energy 83 …”

Section: Factors Affecting Electrical Resistivity Of Porous Sic Ceramicsmentioning

confidence: 91%

“…28,57,82 It has also been reported that the open porosity affects the electrical prop-erties of SiC ceramics more than the close porosity and increases the electrical resistivity. 81 Porosity decreases the cross-sectional area for conduction and results in complex alterations in the conduction mechanism, 80,83,84 as schematically shown in Figure 1A. An increase in the porosity causes the charge flux (eand holes + ) to travel a relatively longer path across the cross-section of the material, 80 as shown in Figure 1A.…”

Section: Porositymentioning

confidence: 99%

“…The decrease in the electrical resistivity with an increase in the measurement temperature was due to the mobilisation of charge carriers by the thermal energy. 83 The results shown in Figure 2 can be summarised as follows:…”

Section: Sic Polytypementioning

confidence: 99%

See 2 more Smart Citations

Controlling the electrical resistivity of porous silicon carbide ceramics and their applications: A review

Anwar

Bukhari

et al. 2022

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Porous silicon carbide (SiC)‐based ceramics are widely used in numerous applications of technical importance owing to their exceptional structural (e.g., excellent chemical, mechanical, and thermal stability) and functional (e.g., controlled electrical resistivity) properties. Porous SiC with controlled electrical resistivity is required for various advanced applications, for example, power electronic devices, semiconductor processing parts, fusion reactors, thermoelectric energy conversion, electromagnetic shielding, and environmental applications such as heatable filters. The electrical properties of sintered porous SiC are significantly affected by its chemical composition, processing conditions, and microstructure. This article reviews the influence of certain critical factors, such as the polytype, doping conditions, porosity (%), additive composition (oxide additives, element additives, metal nitride/carbide additives, etc.), and processing conditions on the electrical resistivity of porous SiC. Novel applications of porous SiC with controlled electrical resistivity are also discussed in this review.

show abstract

Section: Factors Affecting Electrical Resistivity Of Porous Sic Ceramicsmentioning

confidence: 91%

Section: Porositymentioning

confidence: 99%

See 1 more Smart Citation

Controlling the electrical resistivity of porous silicon carbide ceramics and their applications: A review

Anwar

Bukhari

et al. 2022

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…Electrical Properties. A porous structure may directly or indirectly be electrically heated, resulting in a homogeneous temperature field throughout the PM volume [104,105]. This feature could be utilized for cold-start conditions or for liquid-fuel vaporization.…”

Section: Mechanical Resistance and Mechanical Properties Undermentioning

confidence: 99%

“…There are different possibilities to preheat the porous reactor under cold-start conditions. One of promising ways is a direct electric heating of the reactor [104,105]. Another possibility is to use compression energy to be accumulated in the porous reactor.…”

Section: Engine Concept With Mixture Formation and Combustion In A Pomentioning

confidence: 99%

Potential of Porous-Media Combustion Technology as Applied to Internal Combustion Engines

Weclas

2010

Journal of Thermodynamics

View full text Add to dashboard Cite

The paper summarizes the knowledge concerning porous media combustion techniques as applied in engines. One of most important reasons of this review is to introduce this still not well known technology to researchers doing with internal combustion engine processes, thermal engines, reactor thermodynamics, combustion, and material science. The paper gives an overview of possible applications of a highly porous open cell structures to in-cylinder processes. This application means utilization of unique features of porous media for supporting engine processes, especially fuel distribution in space, vaporization, mixing with air, heat recuperation, ignition and combustion. There are three ways for applying porous medium technology to engines: support of individual processes, support of homogeneous combustion process (catalytic and non-catalytic) with temperature control, and utilization of the porous structure as a heat capacitor only. In the first type of application, the porous structure may be utilized for fuel vaporization and improved fuel distribution in space making the mixture more homogeneous in the combustion chamber. Extension of these processes to mixture formation and ignition inside a combustion reactor allows the realization of a homogeneous and a nearly zero emissions level combustion characterized by a homogeneous temperature field at reduced temperature level.

show abstract

Cellular Structures

Colombo

Bernardo

2008

Ceramics Science and Technology

View full text Add to dashboard Cite

Electrical Properties

Cited by 7 publications

References 14 publications

Controlling the electrical resistivity of porous silicon carbide ceramics and their applications: A review

Controlling the electrical resistivity of porous silicon carbide ceramics and their applications: A review

Potential of Porous-Media Combustion Technology as Applied to Internal Combustion Engines

Cellular Structures

Contact Info

Product

Resources

About