1. Adhesion between Biocomposites and Different Metallic Structures Additive Manufactured.
- Author
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Cuc, Stanca, Burde, Alexandru, Cosma, Cosmin, Leordean, Dan, Rusu, Mircea, Balc, Nicolae, Prodan, Doina, Moldovan, Marioara, and Ene, Razvan
- Subjects
DENTAL cements ,SELECTIVE laser melting ,MECHANICAL properties of metals ,SCANNING electron microscopes ,METALLIC surfaces ,SURFACE preparation ,BOND strengths - Abstract
This study was concerned with the adhesion of resin cement to metal surfaces obtained by selective laser melting process (SLM), and how it could be improved the bond strength at the biocomposite-metal junction. The SLM substrates were manufactured out of pure titanium (Ti), Ti
6 Al7 Nb, and CoCr alloys. The metallic surfaces were covered with 5 types of biocomposites: 2 commercially resin-modified glass-ionomer cements (GC Fuji Plus and KETAC CEM) and 3 types of in-house developed materials. These biocomposites were mechanical characterized under compression and bending trials. The biocomposites-metal adhesion was settled both on as built metallic surfaces and after they were sandblasted with alumina. All the sandblasted SLM surfaces presented higher adhesion strength in comparison with the untreated specimens. The CoCr specimens show the highest bonding value. Additionally, the morphological aspects of joining interfaces were investigated using a scanning electron microscope (SEM). The mechanical properties and metal adhesion of these biocomposites were influenced by the liquid powder ratio. It is essential to apply a surface treatment on SLM substrate to achieve a stronger bond. Also, the chemical composition of biocomposite is a major factor which may improve the adhesion of it on different metallic substrates. [ABSTRACT FROM AUTHOR]- Published
- 2021
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