Macias, R. J.; Olmos, L.; Garnica, P.; Alanis, I.; Bouvard, D.; Chavez, J.; Jimenez, O.; Márquez-Beltrán, C.; Cabezas-Villa, J. L. Processing of Porous Core Materials Mimicking Bone’s Microstructure: A Permeability and Mechanical Strength Analysis. Preprints2023, 2023081903. https://doi.org/10.20944/preprints202308.1903.v1
APA Style
Macias, R. J., Olmos, L., Garnica, P., Alanis, I., Bouvard, D., Chavez, J., Jimenez, O., Márquez-Beltrán, C., & Cabezas-Villa, J. L. (2023). Processing of Porous Core Materials Mimicking Bone’s Microstructure: A Permeability and Mechanical Strength Analysis. Preprints. https://doi.org/10.20944/preprints202308.1903.v1
Chicago/Turabian Style
Macias, R. J., César Márquez-Beltrán and Jose Luis Cabezas-Villa. 2023 "Processing of Porous Core Materials Mimicking Bone’s Microstructure: A Permeability and Mechanical Strength Analysis" Preprints. https://doi.org/10.20944/preprints202308.1903.v1
Abstract
This study presents a methodology to fabricate Ti6Al4V cylindrical compacts with a highly porous core and dense shell with the purpose to mimic the bone microstructure. Compacts with different core diameters were obtained by conventionally press and sintering. Large pores were created with the aid of pore formers. Sintering kinetics was determined by dilatometry, whereas characterization was performed by X-ray computed tomography. Also, permeability was evaluated on the 3D microstructure and the mechanical strength was evaluated by compression tests. Results indicated that sintering is constraint by the different densification rates of the porous and dense layers. Nonetheless, defectless compacts were obtained due to neck bonding between Ti6Al4V particles. Large pores were located in the designed core with similar pore size distribution. Permeability increased following a power law as a function of the pore volume fraction. Stiffness of bilayer components was driven by the porous core, meanwhile, the strength resulted from the combination of both layers. Bilayer materials obtained showed a permeability and mechanical properties, as well as admissible strain (σy /E) similar to those of human bones.
Copyright:
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