Fracture characteristics of SiC/graphene platelet composites |
| |
| Affiliation: | 1. Institute of Materials Research, Slovak Academy of Sciences, Division of Ceramic and Non-Metallic Systems, Watsonova 47, 040 01 Ko?ice, Slovak Republic;2. Pavol Jozef ?afárik University in Ko?ice, Faculty of Science, Institute of Physics, Department of Condensed Matter Physics, Park Angelinum 9, 040 01 Ko?ice, Slovak Republic;3. AGH University of Science and Technology in Krakow, Faculty of Materials Science and Ceramics, Department of Ceramics and Refractories, al. A. Mickiewicza 30, 30-059 Krakow, Poland;4. Centre for Materials Research and Sintering Technology, Institute of Advanced Manufacturing Technology, Krakow, 30–011, Poland;5. Donát Bánki Faculty of Mechanical and Safety Engineering, Óbuda University, Népszínház utca 8, 1081 Budapest, Hungary;1. Laboratory for Process Technology, Department of Microsystems Engineering—IMTEK, University of Freiburg, Georges-Köhler-Allee 103, 79110, Freiburg, Germany;2. Institute of Ceramics and Glass (ICV-CSIC), Kelsen 5, 28049, Madrid, Spain;1. Institute of Ceramics and Glass (ICV-CSIC), Kelsen 5, Madrid 28049, Spain;2. University of Aveiro, Dep. of Materials & Ceramic Eng., CICECO, Campus de Santiago, Aveiro 3810-193, Portugal;3. Antonio de Nebrija University, Industrial Engineering Department, Campus Dehesa de la Villa, 28040 Madrid, Spain;4. Institute for Carbon Science and Technology, Shinshu University, Wakasato 4-17-1, Nagano 380-853, Japan;5. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA;1. Instituto de Cerámica y Vidrio, CSIC, Campus Cantoblanco, 28049 Madrid, Spain;2. Departamento de Tecnología Mecánica, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, Spain;3. Research Center for Exotic Nanocarbons (JST), Shinshu University, Wakasato 4-17-1, Nagano 380-853, Japan;4. Department of Physics, Department of Chemistry, Department of Materials Science and Engineering, and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA 16802, USA;1. Institute of Ceramics and Glass (ICV-CSIC), Kelsen 5, 28049 Madrid, Spain;2. University of Aveiro, Dep. of Materials & Ceramic Eng., CICECO, Campus de Santiago, 3810-193 Aveiro, Portugal |
| |
| Abstract: | Silicon carbide/graphene platelet (SiC/GPLs) composites were prepared using different weight percent of GPLs filler by hot pressing (HP) technology at 2100 °C in argon. The influence of the GPLs addition on bending strength, fracture toughness and related fracture characteristics was investigated. Both the bending strength and fracture toughness increased with increasing GPLs additives. The main fracture origins – strength degrading defects were pores at the low content of platelets and combination of pores and GPLs or clusters of GPLs particles in systems with a higher content of platelets. The fracture toughness increased due to the activated toughening mechanisms mainly in the form of crack bridging and crack branching, while the crack deflection was limited. The highest fracture toughness of 4.4 MPa m1/2 was achieved at 6 wt.% of GPLs addition, which was ～30% higher than the KIC value of the reference material. |
| |
| Keywords: | Ceramic composites SiC Graphene platelets Fracture Toughness Strength |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
