Enhancingmechanicalpropertiesand tribologicalperformancethroughboroncarbidehybridizationin Novolacmatrixgraphitecompositesunderdry slidingcondition

Kocaman M., Akçay S. B., Güler O., Çuvalcı H., Varol T.

TRIBOLOGY INTERNATIONAL, vol.199, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 199
  • Publication Date: 2024
  • Doi Number: 10.1016/j.triboint.2024.110027
  • Journal Name: TRIBOLOGY INTERNATIONAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: B4C, Ceramic particle reinforcement, Composite, Novolac matrix, Wear
  • Karadeniz Technical University Affiliated: Yes

Abstract

This study extensivelyinvestigatesthe effectsof 10 wt% graphitereinforcementand varyingB4C content(1 wt%,2 wt%, 4 wt%) on the propertiesof Novolacmatrixpolymercompositespreparedby mechanicalmilling-assistedhot pressing.The microstructures,wear surfaces,wear debris,and fracturesurfacesof the producedpolymercompositeswere examinedusingSEM and EDS. The densitymeasurementswere conductedaccordingto theArchimed's principle.Their tribologicalbehaviorwas evaluatedwith a reciprocatingball-on-flatslidingwear testat 50 N, 75 N, and 100 N loads.After the wear tests, surfacetopographywas analyzedin 3D with an opticalprofilometer.The resultsindicatedthat compositeswith 2 wt% B4C had the lowestspecificwear rate and thehighestwear resistance