نوع مقاله : مقاله پژوهشی
عنوان مقاله English
نویسندگان English
This research focuses on the production of silicon carbide matrix composites and investigates the addition of titanium diboride and graphene quantum dots (GQD) to enhance mechanical, physical, and structural properties. The aim of this research is to produce SiC-TiB2-GQD composites with high physical and mechanical properties such as fracture toughness and Young's modulus higher than pure silicon carbide. The experimental design was carried out using the Taguchi method and finally 23 samples with different chemical compositions were prepared and the final sapmples were produced in the form of tablets after hydraulic pressing. The samples produced with different amounts of additives and also the appropriate amount of silicon carbide matrix powder were prepared and subjected to sintering at 21500C. By examining microstructure, fractography, mechanical and physical properties, the optimal conditions for producing these composites were determined. Finally, the highest fracture toughness (6.13MPa.m1/2) and Young's modulus (523MPa) were obtained for the sample containing 20 wt% TiB2 and 0.3 wt% GQD.
کلیدواژهها English
