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Thermal Treatment of Aerosol Deposited NiMn₂O₄ NTC Thermistors for Improved Aging Stability

Title data

Schubert, Michaela ; Münch, Christian ; Schuurman, Sophie ; Poulain, Veronique ; Kita, Jaroslaw ; Moos, Ralf:
Thermal Treatment of Aerosol Deposited NiMn₂O₄ NTC Thermistors for Improved Aging Stability.
In: Sensors. Vol. 18 (2018) Issue 11 . - No. 3982.
ISSN 1424-8220

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Project information

Project title:
Project's official title
Project's id
Aerosolbeschichtete Keramik-Dickschicht-NTC-Bauelemente
AZ 1159-15
Open Access Publizieren
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Project financing: Bayerische Forschungsstiftung (BFS)

Abstract in another language

This paper examines the influence of a short-term thermal treatment of aerosol deposited negative temperature coefficient (NTC) thermistor films on the NTCR characteristics and their long-term stability with different electrode materials. An aerosol deposition of a spinel-based NiMn2O4 powder on alumina substrates with screen-printed AgPd and Au interdigital electrode structures was performed. The manufactured components of the typical size of 1206 were tempered in a moderate temperature range of 200°C to 800°C and aged for 1000 h at 125°C in air. Based on R-T measurements in a high-precision silicone oil thermostat bath and high temperature XRD analyses, the influence of the thermal treatment was analyzed and discussed. A 60-min tempering at 400°C proved to be optimal, as both the NTCR parameters and their ageing stability could be significantly improved. The findings are explained.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: aerosol deposition method (ADM); room temperature impact consolidation (RTIC); spinel ceramic; non-linear resistor; temperature sensor; long-term stability; NTCR
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 26 Nov 2018 15:01
Last Modified: 03 Feb 2022 13:20