A System for Rapid Measurements of RF and Microwave Properties Up to 1400°C. Part 2: Description of Apparatus, Data Collection Techniques and Measurements on Selected Materials.

Hutcheon, R. M.; Jong, M. de; Adams, F.P.; Wood, GS; McGregor, James; Smith, Bob H.

doi:10.1080/08327823.1992.11688177

Cited by 33 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Resonant cavities are widely used to measure complex permittivity in the microwave frequency range and particularly in low-loss samples. [9][10][11][12][13][14][15] When a dielectric material is placed inside a resonant cavity, the central frequency of the resonant modes of the cavity will shift and the resonance curve broadens depending upon the material's complex permittivity and dimensions. However, the resonant cavity method is usually considered destructive because the sample must be machined to a specific shape and size.…”

Section: B Complex Permittivity Measurementsmentioning

confidence: 99%

Complex permittivity measurements and mixing laws of porous alumina

Gershon

Calame

Birnboim

2001

Journal of Applied Physics

View full text Add to dashboard Cite

The dependence of the permittivity of porous alumina on the microstructure was studied. Three different algebraic mixing laws inaccurately predicted the measured effective permittivity of the three-phase material, which was alumina, air, and water. Finite-difference electrostatic simulations of physically realistic microstructures accurately predicted the experimental results. The electrostatic simulations also provided physical insight into the arrangement of water in the material and its significant effect on the effective permittivity.

show abstract

Section: B Complex Permittivity Measurementsmentioning

confidence: 99%

Complex permittivity measurements and mixing laws of porous alumina

Gershon

Calame

Birnboim

2001

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…Therefore, the cavity mode frequency used in this experiment was 2450 ± 0.5 pct MHz, and the detailed descriptions for the measurement fundamentals and the apparatus are found in the published literature. 41,42 The structure of the experimental device is shown in Figure 14.…”

Section: Discussionmentioning

confidence: 99%

“…Also, the cavity mode frequency of 2450 ± 0.5 pct MHz (λ 0 = 12.24 cm) has the characteristics of improving the heating uniformity with a multimode cavity. Therefore, the cavity mode frequency used in this experiment was 2450 ± 0.5 pct MHz, and the detailed descriptions for the measurement fundamentals and the apparatus are found in the published literature. , The structure of the experimental device is shown in Figure .…”

Section: Methodsmentioning

confidence: 99%

Dielectric Properties of Silicothermic Reduction Chromite in the Microwave Field

Dai

Guo

et al. 2020

ACS Omega

View full text Add to dashboard Cite

The microwave absorption properties of chromite and the feasibility of microwave reduction chromite have been discussed. The results show that as the density increases, the dielectric properties of materials increase. The dielectric properties are the best (the value around 4.2) when the silica ratio is 0.5. Microwave penetration depth shows that chromite and the mixture have good wave absorption properties.

show abstract

“…In order to understand the mechanism of microwave firing and to consider the effect of praseodymium in a microwave field, measurements of dielectric properties at elevated temperatures were made on ceria, praseodymia and 10% praseodymia/ceria dried gels using the cavity perturbation method. 26,27 Samples were measured at 2.45 GHz from room temperature to 1400 uC at 100 uC intervals. The data were compared with the thermal behaviour of the samples as obtained by thermogravimetry (TG), and differential thermal analysis (DTA), in air at a heating rate of 20 uC min 21 , using simultaneous TG/DTA equipment (Netzsch, STA 409, Selb, Germany).…”

Section: Powder Characterisationmentioning

confidence: 99%