dc.creator | Lloreda Jurado, Pedro Javier | es |
dc.creator | Chicardi Augusto, Ernesto | es |
dc.creator | Paúl Escolano, Antonio | es |
dc.creator | Sepúlveda Ferrer, Ranier Enrique | es |
dc.date.accessioned | 2020-12-14T08:17:30Z | |
dc.date.available | 2020-12-14T08:17:30Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Lloreda Jurado, P.J., Chicardi Augusto, E., Paúl Escolano, A.G. y Sepúlveda Ferrer, R.E. (2021). Effect of processing parameters on the properties of freeze-cast Ni wick with gradient porosity. Materials and Design, 206, Article number 109795. | |
dc.identifier.issn | 0264-1275 | |
dc.identifier.uri | https://hdl.handle.net/11441/103160 | |
dc.description | Article number 109795 | |
dc.description.abstract | Wicks are the main component of Loop Heat Pipe systems, whereby coolant liquid flow
through their porous structure. They are usually formed by a primary wick to produce liquid
transportation by capillary force, and a secondary wick that is continuously wetted by the liquid
coolant. Traditionally, the two wicks are manufactured separately and subsequently joined, thereby
creating an interface that reduces the liquid transfer efficiency. In order to overcome this situation,
a gradient porous wick is proposed and successfully manufactured through the freeze-casting
method in a single operation. The influence of two different dispersant agents, KD4® and stearic
acid was studied on the processing parameters, final pore size and morphology, and capillarity
performances. A variate of gradient porosity was obtained by applying a diverse thermal gradient
and solidification front velocity during directional solidification. The rheological characterisation of
the camphene-based NiO suspensions was performed using a rotational viscometer. The final pore
size and morphology were characterised by Optical Microscopy, Field Emission Scanning Electron
Microscopy, and X-ray computed tomography. The use of stearic acid improves the particle
stabilisation and generates pore enlargement with an equiaxed pore structure, while commercial
dispersant KD4® shows a dendritic pore morphology at lower thermal gradient. | es |
dc.format | application/pdf | es |
dc.format.extent | 9 p. | |
dc.language.iso | eng | es |
dc.publisher | Elsevier Ltd | |
dc.relation.ispartof | Materials and Design, 206, Article number 109795. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Freeze casting | es |
dc.subject | Nickel | es |
dc.subject | Wick | es |
dc.subject | Camphene | es |
dc.subject | Stearic acid | es |
dc.subject | Nanoparticles | es |
dc.title | Effect of processing parameters on the properties of freeze-cast Ni wick with gradient porosity | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte | es |
dc.relation.projectID | MAT2016-76713-P | es |
dc.relation.projectID | MAT2016-76713-P | |
dc.relation.projectID | PIFII.2A | |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0264127521003488 | |
dc.contributor.sponsorship | Ministerio de Ciencia e Innovación MAT2016-76713-P | |
dc.contributor.sponsorship | Feder (UE) MAT2016-76713-P | |
dc.contributor.sponsorship | Universidad de Sevilla PIFII.2A | |
dc.identifier.doi | 10.1016/j.matdes.2021.109795 | |
dc.contributor.group | Universidad de Sevilla. TEP973: Tecnología de Polvos y Corrosión | es |
dc.journaltitle | Materials and Design | |
dc.publication.volumen | 206 | |
dc.publication.initialPage | Article number 109795 | |
dc.contributor.funder | Ministerio de Economía, Industria y Competitividad | es |
dc.contributor.funder | PIF II.2A, VI Plan Propio de Investigación | es |
dc.description.awardwinning | Premio Trimestral Publicación Científica Destacada de la US. Escuela Técnica Superior de Ingeniería | |