A 3D LTCC-Based Ceramic Microfluidic System with RF Dielectric Heating of Liquids

Autor: Darko Belavic, Kostja Makarovic, Barbara Malič, Matjaž Vidmar
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Materials; Volume 14; Issue 23; Pages: 7396
Materials
Materials, vol. 14, no. 23, 7396, 2021.
Materials, Vol 14, Iss 7396, p 7396 (2021)
ISSN: 1996-1944
DOI: 10.3390/ma14237396
Popis: The design, fabrication and functional evaluation of the radio-frequency dielectric heating of liquids in an LTCC-based ceramic microfluidic system are described and discussed. The device, which relies on the dielectric heating of liquids, was fabricated using a low temperature co-fired ceramic (LTCC) technology. A multilayered ceramic structure with integrated electrodes, buried channels and cavities in micro and millimetre scales was fabricated. The structure with the dimensions of 35 mm × 22 mm × 2.4 mm includes a buried cavity with a diameter of 17.3 mm and a volume of 0.3 mL. The top and bottom faces of the cavity consist of silver/palladium electrodes protected with 100 μm thick layers of LTCC. The power, used to heat a polar liquid (water) in the cavity with the volume of 0.3 mL, ranges from 5 to 40 W. This novel application of RF dielectric heating could enable the miniaturization of microfluidic systems in many applications. The working principle of such a device and its efficiency are demonstrated using water as the heated medium.
Databáze: OpenAIRE
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