Cu-Mn Co-doped NiFe2O4 based thick ceramic film as negative temperature coefficient thermistors. Issue 1 (November 2021)

• Record Type: Journal Article
• Authors: Hardian, A; Greshela, S; Yuliana, T; Budiman, S; Murniati, A; Kusumaningtyas, V A; Syarif, D G
• Is Part Of: IOP conference series. Volume 882:Issue 1(2021)
• Publication Date: 2021-11
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/882/1/012017
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: NTC (Negative Temperature Coefficient) thermistors are widely used as temperature sensors in industrial and medical applications due to their high-temperature sensitivity, durability, and low cost. Generally, NTC thermistors are made from spinel structured ceramics formed by transition metal oxides with the general formula AB2 O4 . One of the spinel structured ceramics that can be made for NTC thermistors is NiFe2 O4 nanoparticles. This work aimed to prepare Cu-Mn co-doped NiFe2 O4 based thick ceramic film using Jarosite mineral as a precursor. The synthesis method used was a simple coprecipitation method, while the technique used in making a thick ceramic film was a simple screen printing technique. The sintering temperatures used were 1000 °C, 1100 °C, and 1200 °C. Based on x-ray diffraction analysis, the thick films consist of spinel phase, hematite phase, and some unidentified phase. The constant thermistor values (B) for thick films obtained with 1000, 1100, and 1200 °C sintering temperatures were 4740 K, 5669 K, and 5731 K, respectively. These results showed that all obtained thick films had passed the minimum value in market needs (B ≥2000 K).