Dynamic dielectric analysis of solids

Nottenburg, R.N.; Rajeshwar, Krishnan; Freeman, M.; DuBow, J.

doi:10.1016/0022-4596(79)90072-0

Cited by 17 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Details of the techniques may be found in previous papers published from this laboratory (2)(3)(4)(5)(6)(7). Only the principles underlying the various measurement techniques are amplified below.…”

Section: Methodsmentioning

confidence: 99%

“…Oil shale samples for these measurements were fashioned from right circular cylindrical cores (12.5 rom diameter, 2 rom thick). Dielectric constant (e") and dielectric loss (e") were measured at frequencies in the range 50 Hz-I MHz, using the Dynamic Dielectric Analysis technique described elsewhere (4,5). This technique is based .on the measurement of the attenuation (G) and phase shift (cP) of a sinusoidal signal after passage through the test sample.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Practical Applications of Thermophysical Property Measurements in Oil Shale Technology

Rajeshwar

DuBow

1981

Energy Sources

View full text Add to dashboard Cite

The dependence of thermophysical properties such as thermal conductivity, thermal diffusivity, specific heat, and dielectric constant on organic content is discussed for oil shales of the Green River Formation. The applicability of thermophysical measurements for assaying and retort diagnostic purposes is also discussed in the light of methods that are currently in use in oil shale science and technology.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Practical Applications of Thermophysical Property Measurements in Oil Shale Technology

Rajeshwar

DuBow

1981

Energy Sources

View full text Add to dashboard Cite

show abstract

“…I n this paper, the frequency dependence of the electrical conductivity (a) is reported for KP, rubidium perchlorate (RbP), and cesium perchlorate (CsP). Frequencies in the range 50 Hz to 1 kHz were scanned by the Dynamic Dielectric Analysis (DDA) technique described elsewhere [3,4]. It may be noted that the frequency-dependent electrical conductivity behavior of the above materials and of inorganic perchlorates in general has received only scant attention.…”

Section: Introductionmentioning

confidence: 99%

Frequency dependence of the electrical conductivity of MClO4 (M = K, Rb, Cs) compounds

Rajeshwar

Nottenburg

Verneker

et al. 1980

Phys. Stat. Sol. (a)

Self Cite

View full text Add to dashboard Cite

245The frequency dependence of the electrical conductivity of potassium perchlorate, rubidium perchlorate, and cesium perchlorate is discussed. Frequencies in the range 50 Hz to 1 kHz and temperatures from ambient to =z 620 K are included for this study. Similarities and differences in the temperature-and frequency-dependent electrical conductivity behavior of the above compounds and the effect of ionic radii on the activation energies for charge carrier transport are highlighted in the present study.Es wird die Frequenzabhangigkeit der elektrischen Leitfahigkeit von Kaliumperchlorat, Rubidiumperchlorat und Ciisiurnperchlorat diskutiert. Dabei werden Frequenzen irn Bereich von 50 Hz bis 1 kHz und Temperaturen von Zimrnertemperatur bis =z 620 K benutzt. Bhnlichkeiten und Unterschiede der Temperatur-und Frequenzabhiingigkeit der elektrischen Leitfahigkeit der erwiihnten Verbindungen und der EinfluB der Ionenradien auf die Aktivierungsenergien fur den Ladungstragertransport werden in der Untersuchung herausgestellt.

show abstract

“…In previous papers from this laboratory, a novel automated technique for monitoring the frequency and temperature dependence of the ac electrical properties of materials was described (1, 2). The advantages gained by the application of this technique, which we call Dynamic Dielectric Analysis (DDA), over conventional bridge methods were demonstrated (1) . A simultaneous application of this technique along with Differential Thermal Analysis (DTA) was shown to considerably facilitate data interpretation and yield a more complete information on the thermophysical behavior of the test sample, especially in the case of complex, naturally-occurring materials (2) .…”

mentioning

confidence: 99%