The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Pseudobrookite thick films were obtained by screen printing paste composed of a 1:1.5 molar ratio mixture of starting nanopowders of hematite and anatase, glass frit and organic binder. The films were deposited on alumina substrates with interdigitated electrode geometry. Sintering at 850 °C resulted in the formation of pseudobrookite. X-Ray Diffraction (XRD) analysis showed pseudobrookite with a...
Two pseudobrookite (PSB) containing pastes were composed of a mixture of starting nanopowders of hematite (a-Fe2O3) and anatase (TiO2) in the molar ratios 1:1 (referred to as PSB-1) and 1:1.5 (referred to as PSB-1.5), respectively, organic vehicle and glass frit. The pastes were screen printed on alumina (Al2O3) substrates and sintered in a hybrid conveyor furnace at 850 °C/10 min in air. X-ray diffraction...
If the material is being sintered, grain size of its particles will depend on the sintering temperature, time of the sintering and the pressure applied on the material while sintering. It is well known that on the lower sintering temperatures grain size of the nano material is relatively small and thus the active area is large. Due to the low sintering temperature, high material porosity is expected...
In this paper we investigate the possibility of displacement detection by approaching dielectric plate to electrodes of interdigital capacitor. Working principle of this sensor is based on penetration depth of the fringing electric fields above capacitors electrodes and its intersection with dielectric plate. Tests were done with interdigital capacitor and dielectric plates fabricated in Low Temperature...
In this paper the possibility of detection presents of various liquids in distilled water by employing the interdigital capacitor was investigated. Quantity detection principle of known liquid in distilled water is based on immerging the interdigital capacitor in distilled water and observing changes of its capacity with quantity increment of known liquid. Experimental measurement were done with interdigital...
Application of Low Temperature Co-Fired Ceramic (LTCC) technology is widely spread. Its presence is well established in component packaging, sensor applications, high frequency applications [1, 2], chemical reactors and bio-medical applications [3]. For successful realization and implementation of LTCC structures, characteristics and features of LTCC tapes as well as their behavior have to be known...
This paper presents design, simulation, fabrication and experimental characterization of the platinum micro-heater elements built on alumina substrate. Micro-heaters are designed for application where the device has to be heated up to 700 °C in less than a 200 ms. Choosing the proper combination of electrical, thermal and mechanical characteristics of thick film heating resistor, glass layer and substrate,...
Behavior investigation of Low Temperature Co-Fired Ceramic(LTCC) tape when placed in water environment is presentedin this paper. As addition, influence of number of LTCC tapes on overall capacitance. of interdigitalcapacitor (IDC) was also investigated and presented. Acting as a sensing structureIDC was embedded inside LTCC stack to prevent direct contact of water and IDC. LTCC structures with two...
This paper presents the development of LC sensor comprised of a movable inductor and a fixed inductor-capacitor resonant circuit, thereby causing the sensor resonant frequency to be displacement dependent. The sensor has been fabricated in PCB (Printed Circuit Board) technology and experimentally characterized. Experimentally obtained results are compared with an electrical model. Good agreement between...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.