Processing of Porous Core Materials Mimicking Bone’s Microstructure: A Permeability and Mechanical Strength Analysis

Rogelio Jr. Macias; Luis Olmos; Pedro Garnica; Ivon Alanis; Didier Bouvard; Jorge Chavez; Omar Jimenez; César Márquez-Beltrán; Jose Luis Cabezas-Villa

doi:10.20944/preprints202308.1903.v1

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preprints.org > chemistry and materials science > biomaterials > doi: 10.20944/preprints202308.1903.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Processing of Porous Core Materials Mimicking Bone’s Microstructure: A Permeability and Mechanical Strength Analysis

^* ,

César Márquez-Beltrán

Jose Luis Cabezas-Villa

Version 1 : Received: 25 August 2023 / Approved: 28 August 2023 / Online: 29 August 2023 (09:27:46 CEST)

How to cite: 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. Preprints 2023, 2023081903. https://doi.org/10.20944/preprints202308.1903.v1 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. Preprints 2023, 2023081903. https://doi.org/10.20944/preprints202308.1903.v1

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MDPI and ACS Style

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. Preprints 2023, 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.

Keywords

Sintering; Ti6Al4V alloy; compression; computed microtomography; biomedical applications

Subject

Chemistry and Materials Science, Biomaterials

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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