Experimental and numerical studies of micro- and macromechanical properties of modified copper–silicon carbide composites. (15th March 2019)

• Record Type: Journal Article
• Authors: Nosewicz, S.; Romelczyk-Baishya, B.; Lumelskyj, D.; Chmielewski, M.; Bazarnik, P.; Jarząbek, D.; Pietrzak, K.; Kaszyca, K.; Pakieła, Z.
• Is Part Of: International journal of solids and structures. Volume 160(2019)
• Page Start: 187
• Page End: 200
• Publication Date: 2019-03-15
• Subjects: metal matrix composites -- silicon carbide -- metallic layers deposition -- small punch -- interface strength -- finite element method; Mechanics, Applied -- Periodicals; Structural analysis (Engineering) -- Periodicals; Elastic solids -- Periodicals; Mécanique appliquée -- Périodiques; Constructions, Théorie des -- Périodiques; Solides élastiques -- Périodiques; Elastic solids; Mechanics, Applied; Structural analysis (Engineering); Periodicals; 624.18
• DOI: 10.1016/j.ijsolstr.2018.10.025
• Languages: English
• ISSNs: 0020-7683

Abstract

Highlights: The microstructure and strength of interface metal matrix composites strongly depends on the presence and type of metal coating on SiC particles. The nickel coating ensures the highest values of registered force comparing to the materials with a tungsten protective later and without any coating. The numerical studies, combined with the experimental ones, created a model covering all stages of composite material deformation process, such a fracture initiation, softening and final material failure. Abstract: The presented research investigation comprises the study of the mechanical properties of modified copper–silicon carbide composites at the micro- and macroscopic scale. The improvement of a copper–silicon carbide composite refers to the addition of a protective layer at the ceramic reinforcement in order to prevent the dissolution of silicon in the copper matrix. The macromechanical behaviour has been evaluated by the performance in a small punch test. The investigation has been carried out with samples with varying volume content of ceramic reinforcement and different protective layers of the silicon carbide particles. Moreover, the influence of temperature during the strength test has been studied. Next, the results have been referred to the interfacial bonding strength of Cu and SiC particles. SEM characterization of samples has been performed to link the composites' microstructure with the mechanical behaviour. Finally, the experimental results of the small punch test have been predicted via a numerical approach. Finite element analysis has been employed to reproduce the response of the composite specimen during the test. Satisfactory agreement with the experimental curve has been obtained. Graphical abstract: