Mechanical and Thermomechanical Behavior Of Sic/Si Compounds Subjected To Controlled Atmospheric Conditions

Gamarra-Delgado, J.F.; Paredes-Paz, J.J.; Bringas-Rodríguez, V.C.; Mayta-Ponce, D.L.; Rodríguez-Guillén, G.P.; Huamán-Mamani, F.A.

doi:10.11159/ijmmme.2020.006

Cited by 1 publication

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“…On the other hand, Peru is a country with a mega diverse flora that registers 4618 timber species, most of the low-density timber species have high strength, rigidity, tenacity, resistance to damage at micro and macro scales with a unique cellular structure, additionally It is a sustainable and renewable resource, which is why it becomes a promising resource for the production of biomorphic carbides, various investigations have focused on the use of low-density timber preforms because they can contain a large amount of Si during the infiltration processes of Si (7)(8)(9)(10)(11)(12)(13).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Mechanical Behavior of Biomorphic Silicon Carbide Derived From Low-Density Peruvian Woods

Bringas-Rodríguez¹,

Gamarra-Delgado²,

Benavides-Salinas³

et al. 2021

World Congress on Mechanical, Chemical, and Material Engineering

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Low-density Peruvian woods (tornillo and bolaina) were used as raw material for the manufacture of biomorphic silicon carbide. The plant precursors were physically-mechanically characterized and then pyrolyzed at 900 ° C in an argon atmosphere to obtain carbon templates, which were then infiltrated with metallic silicon to obtain silicon carbide with mimicked microstructures. The values found for moisture absorption, basic density and average mechanical strength in uniaxial compression were 6.51%, 0.49 g/cm 3 and 42.5 MPa, respectively, for the tornillo and 6.99%, 0.42 g/cm 3 and 41.5 MPa, respectively, for the bolaina.Samples of biomorphic SiC derived from tornillo and bolaina presented a homogeneous and porous microstructure, the phases of SiC, Si and remaining carbon could be clearly identified. The mechanical results of the SiC samples studied showed high dispersion, with respect to the maximum resistance values, which ranged between 194 and 440 MPa for the tornillo -derived SiC and between 30 and 77 MPa for the bolaina -derived SiC.

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