- Tytuł:
- Dielectric Properties of High-Silica Sand at 2.45 GHz
- Autorzy:
-
Opyd, B
Nowak, D.
Granat, K. - Powiązania:
- https://bibliotekanauki.pl/articles/382869.pdf
- Data publikacji:
- 2015
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
innovative foundry technologies
microwaves
moulding sand
high-silica sand
innowacyjne technologie odlewnicze
mikrofale
masa formierska
piasek kwarcowy - Opis:
- In the paper, presented are measurements of permittivity (εr) and dielectric loss factor (tgδ) of high-silica moulding sand, determined at 2.45 GHz by perturbation method on a stand of waveguide resonance cavity. Determined were electrical properties of the main component of moulding sands, i.e. high-silica base, critical for their heating kinetics. The measurements were carried-out for six kinds of high-silica sand with diverse grain size distribution. Analysis of the results indicates that both permittivity and loss tangent values are similar for all kinds of high-silica moulding sand. Irrespective of their grain size analysis, neither of the examined sandmixes shows susceptibility to action of 2.45 GHz microwave field. The presented results make a ground for developing a mathematical model of microwave heating of technological systems composed of moulding sand and foundry tooling.
- Źródło:
-
Archives of Foundry Engineering; 2015, 15, 1 spec.; 136-139
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł