Work

Multifunctional Composite in the B4C-SiC-TiC-TiB2 System

Year: 2025

Type: article

Abstract: Objective: To develop a composite material with enhanced technical and operational properties based on the B4C-SiC-TiC-TiB2 system. Method: The composite was fabricated via hot-pressing. Phase composition and microstructural characterization were performed using X-ray diffraction (DRON-3) and scanning electron microscopy (SEM). Mechanical properties were evaluated using a German R-100 tensile testing machine and a Rockwell hardness tester for hardness assessment. Result: The hot-pressing process induced a solid-state reaction between titanium carbide (TiC) and boron carbide (B4C), leading to the in-situ formation of titanium diboride (TiB2) grains, which contributed significantly to the composite’s mechanical reinforcement. The addition of perlite facilitated the development of a glassy intergranular phase, forming continuous “bridges” between carbide grains, thereby enhancing grain boundary cohesion and mechanical stability. Conclusion: The synthesized composite demonstrates outstanding mechanical performance: Flexural strength: 389 MPa; Compressive strength: 1923 MPa; Impact toughness: 11.2 kJ/m2. These properties make the material well-suited for wear-resistant applications operating under high-impact, thermomechanical loading and other conditions.

Source: Journal of Electronics Cooling and Thermal Control

DOI: 10.4236/jectc.2025.141001