Electrical Characteristics CuFe{sub 2}O{sub 4} Thick Film Ceramics Made with Different Screen Size Utilizing Fe{sub 2}O{sub 3} Nanopowder Derived from Yarosite for NTC Thermistor

Journal Article · Sun Oct 24 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3515571· OSTI ID:21428674

Wiendartun,; Syarif, Dani Gustaman ^[1]

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1. PTNBR BATAN, Jl.Tamansari 71 Bandung 40132 (Indonesia)

Fabrication of CuFe{sub 2}O{sub 4} thick film ceramics utilizing Fe{sub 2}O{sub 3} derived from yarosite using screen printing technique for NTC thermistor has been carried out. Effect of thickness variation due to different size of screen (screen 225; 300 and 375 mesh) has been studied. X-ray diffraction analyses (XRD) was done to know crystal structure and phases formation. SEM analyses was carried out to know microstructure of the films. Electrical properties characterization was done through measurement of electrical resistance at various temperatures (room temperature to 100 deg. C). The XRD data showed that the films crystalize in tetragonal spinel. The SEM images showed that the screen with the smaller of the hole size, made the grain size was bigger. Electrical data showed that the larger the screen different size thickness variation (mesh), the larger the resistance, thermistor constant and sensitivity. From the electrical characteristics data, it was known that the electrical characteristics of the CuFe{sub 2}O{sub 4} thick film ceramics followed the NTC characteristic. The value of B and R{sub RT} of the produced CuFe{sub 2}O{sub 4} ceramics namely B = 3241-3484 K and R{sub RT} = 25.6-87.0 M Ohm, fitted market requirement.

• OSTI ID: 21428674
• Journal Information: AIP Conference Proceedings, Vol. 1284, Issue 1; Conference: NNSB2010: 3. nanoscience and nanotechnology symposium 2010, Bandung (Indonesia), 16 Jun 2010; Other Information: DOI: 10.1063/1.3515571; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
CERAMICS
COPPER COMPOUNDS
ELECTRIC CONDUCTIVITY
FERRITES
FILMS
GRAIN SIZE
IRON OXIDES
NANOSTRUCTURES
POWDERS
SCANNING ELECTRON MICROSCOPY
SCREEN PRINTING
SPINELS
TEMPERATURE DEPENDENCE
THERMISTORS
X-RAY DIFFRACTION
CHALCOGENIDES
COHERENT SCATTERING
DEPOSITION
DIFFRACTION
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
FERRIMAGNETIC MATERIALS
IRON COMPOUNDS
MAGNETIC MATERIALS
MATERIALS
MICROSCOPY
MICROSTRUCTURE
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SEMICONDUCTOR DEVICES
SIZE
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS