Damage evolution and fracture events sequence analysis of core-shell nanoparticle modified bone cements by acoustic emission technique

dc.creatorOSCAR FERNANDO PACHECO SALAZAR
dc.creatorSHUICHI WAKAYAMA
dc.creatorLuis Alfonso Can Herrera
dc.creatorMARIO ADRIAN DE ATOCHA DZUL CERVANTES
dc.creatorCarlos Rolando Ríos Soberanis
dc.creatorJOSE MANUEL CERVANTES UC
dc.date2020
dc.date.accessioned2023-07-21T19:19:14Z
dc.date.available2023-07-21T19:19:14Z
dc.identifierhttp://cicy.repositorioinstitucional.mx/jspui/handle/1003/1802
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7737356
dc.descriptionIn this research, damage in bone cements that were prepared with core-shell nanoparticles was monitored during four-point bending tests through an analysis of acoustic emission (AE) signals. The core-shell structure consisted of poly(butyl acrylate) (PBA) as rubbery core and methyl methacrylate/styrene copolymer (P(MMA-co-St)) as a glassy shell. Furthermore, different core-shell ratios 20/80, 30/70, 40/60, and 50/50 were prepared and incorporated into the solid phase of the bone cement formulation at 5, 10, and 15 wt %, respectively. The incorporation of a rubbery phase into the bone cement formulation decreased the bending strength and bending modulus. The AE technique revealed that the nanoparticles play an important role on the fracture mechanism of the bone cement, since a higher amount of AE signals (higher amplitude and energy) were obtained from bone cements that were prepared with the nanoparticles in comparison with those without nanoparticles (the reference bone cement). The SEM examination of the fracture surfaces revealed that all of the bone cement formulations exhibited stress whitening, which arises from the development of crazes before the crack propagation. Finally, the use of the AE technique and the fracture surface analysis by SEM enabled insight into the fracture mechanisms that are presented during four-point bending test of the bone cement containing nanoparticles.
dc.formatapplication/pdf
dc.languageeng
dc.relationinfo:eu-repo/semantics/datasetDOI/doi:10.3390/polym12010208
dc.relationcitation:Pacheco-Salazar OF, Wakayama S, Can-Herrera LA, Dzul-Cervantes MAA, Ríos-Soberanis CR, Cervantes-Uc JM. Damage Evolution and Fracture Events Sequence Analysis of Core-Shell Nanoparticle Modified Bone Cements by Acoustic Emission Technique. Polymers (Basel). 2020 Jan 15;12(1):208. doi: 10.3390/polym12010208. PMID: 31952108; PMCID: PMC7023568.
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourcePolymers (Basel). 2020 Jan 15;12(1):208. doi: 10.3390/polym12010208. PMID: 31952108; PMCID: PMC7023568.
dc.subjectinfo:eu-repo/classification/Autores/ACOUSTIC EMISSION
dc.subjectinfo:eu-repo/classification/Autores/BENDING TEST
dc.subjectinfo:eu-repo/classification/Autores/BONE CEMENT
dc.subjectinfo:eu-repo/classification/Autores/CORE-SHELL NANOPARTICLES
dc.subjectinfo:eu-repo/classification/cti/7
dc.subjectinfo:eu-repo/classification/cti/33
dc.subjectinfo:eu-repo/classification/cti/3312
dc.subjectinfo:eu-repo/classification/cti/331208
dc.subjectinfo:eu-repo/classification/cti/331208
dc.titleDamage evolution and fracture events sequence analysis of core-shell nanoparticle modified bone cements by acoustic emission technique
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


Este ítem pertenece a la siguiente institución