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https://hdl.handle.net/1822/64828
Título: | Fabrication, characterization and implementation of thermo resistive TiCu(N,O) thin films in a polymer injection mold |
Autor(es): | Oliveira, Eva Silva, João Paulo Laranjeira, Jorge Macedo, Francisco Lanceros-Méndez, S. Vaz, F. Ferreira, Armando |
Palavras-chave: | injection mold sensors temperature coefficient of resistance thermal properties |
Data: | 20-Mar-2020 |
Editora: | Multidisciplinary Digital Publishing Institute |
Revista: | Materials |
Citação: | Oliveira, E.; Silva, J.P.; Laranjeira, J.; Macedo, F.; Lanceros-Mendez, S.; Vaz, F.; Ferreira, A. Fabrication, Characterization and Implementation of Thermo Resistive TiCu(N,O) Thin Films in a Polymer Injection Mold. Materials 2020, 13, 1423. |
Resumo(s): | This paper presents the development of metallic thermoresistive thin film, providing an innovative solution to dynamically control the temperature during the injection molding process of polymeric parts. The general idea was to tailor the signal response of the nitrogen- and oxygen-doped titanium-copper thin film (TiCu(N,O))-based transducers, in order to optimize their use in temperature sensor devices. The results reveal that the nitrogen or oxygen doping level has an evident effect on the thermoresistive response of TiCu(N,O) films. The temperature coefficient of resistance values reached 2.29 × 10<sup>−2</sup> °C<sup>−1</sup>, which was almost six times higher than the traditional platinum-based sensors. In order to demonstrate the sensing capabilities of thin films, a proof-of-concept experiment was carried out, integrating the developed TiCu(N,O) films with the best response in an injection steel mold, connected to a data acquisition system. These novel sensor inserts proved to be sensitive to the temperature evolution during the injection process, directly in contact with the polymer melt in the mold, demonstrating their possible use in real operation devices where temperature profiles are a major parameter, such as the injection molding process of polymeric parts. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/64828 |
DOI: | 10.3390/ma13061423 |
e-ISSN: | 1996-1944 |
Versão da editora: | https://www.mdpi.com/1996-1944/13/6/1423 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
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Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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materials-13-01423.pdf | 6,6 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons