Analysis of the Thermomechanical Behavior of Sic/Si/Tisi2 Cermets Manufactured with Waste Wood from Capirona and Capinuri Peruvian Species

Bringas-Rodríguez V.C.; Camero-Carnero D.E.; Palomino-ñaupa C.K.; Rodríguez-Guillén G.P.; Mayta-Ponce D.L.; Huamán-Mamani F.A. · Key Engineering Materials (2024) · DOI: 10.4028/p-kcbct6

Resumen

This study analyzes the thermomechanical behavior of SiC/Si/TiSi2 cermets manufactured from Peruvian wood waste of the Capirona and Capinuri species. A sustainable manufacturing process was used that uses sawdust as a precursor. The mechanical properties under compression and the elastic modulus of the cermets were characterized from room temperature to 1400°C. At room temperature, the values achieved exceed 500 MPa in both cermets, with the Capinuri precursor being slightly higher in maximum compressive strength with 691 MPa, but in elastic modulus, the Capirona cermet has a rigidity of 159 GPa. At 500°C, the cermets showed a small reduction in their mechanical performance. At 1100°C, a decrease in strength was observed to 248 MPa for Capinuri and 292 MPa for Capirona and in Young's modulus to 85.18 GPa and 91.92 GPa respectively. At 1400°C, both cermets suffered a significant deterioration of their mechanical properties due to a presumed chemical degradation of the individual components. The results demonstrate the feasibility of using wood waste as precursors for the sustainable manufacturing of advanced composite materials, however, optimization of manufacturing parameters and processes should be considered to improve the performance and stability of this material.

Instituciones: Universidad Católica San Pablo