Authors: Tillmann, Wolfgang
Kokalj, David
Stangier, Dominic
Schöppner, Volker
Malatyali, Hatice
Title: Combining thermal spraying and magnetron sputtering for the development of Ni/Ni-20Cr thin film thermocouples for plastic flat film extrusion processes
Language (ISO): en
Abstract: In the digitalization of production, temperature determination is playing an increasingly important role. Thermal spraying and magnetron sputtering were combined for the development of Ni/Ni-20Cr thin film thermocouples for plastic flat film extrusion processes. On the thermally sprayed insulation layer, AlN and BCN thin films were deposited and analyzed regarding their structural properties and the interaction between the plastic melt and the surfaces using Ball-on-Disc experiments and High-Pressure Capillary Rheometer. A modular tool, containing the deposited Ni/Ni-20Cr thin film thermocouple, was developed and analyzed in a real flat film extrusion process. When calibrating the thin film thermocouple, an accurate temperature determination of the flowing melt was achieved. Industrial type K sensors were used as reference. In addition, PP foils were produced without affecting the surface quality by using thin film thermocouples.
Subject Headings: Nickel-chromium
Thin film thermocouples
Physical vapor deposition
Flat film extrusion
Foil quality
Subject Headings (RSWK): Nickel
Chrom
Dünnschichttechnik
Thermoelement
PVD-Verfahren
Extrudieren
URI: http://hdl.handle.net/2003/38265
http://dx.doi.org/10.17877/DE290R-20235
Issue Date: 2019-09-24
Rights link: http://creativecommons.org/licenses/by/4.0/
Appears in Collections:Lehrstuhl für Werkstofftechnologie

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