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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/7669

    Título
    Comparative Life Cycle Assessment of Green Sand Casting and Low Pressure Die Casting for the production of self-cleaning AlMg3-TiO2 Metal Matrix Composite
    Autor
    Santiago Herrera, MarioAutoridad UBU Orcid
    Ibáñez Porras, JesúsAutoridad UBU Orcid
    Díez Hernández, JulietaAutoridad UBU Orcid
    Tamayo Ramos, Juan AntonioAutoridad UBU Orcid
    Pabel, Thomas
    Kneissl, Christian
    Alegre Calderón, Jesús ManuelAutoridad UBU Orcid
    Martel Martín, SoniaAutoridad UBU Orcid
    Barros García, RocíoAutoridad UBU Orcid
    Publicado en
    Ecological Indicators. 2022, V. 144, 109442
    Editorial
    Elsevier
    Fecha de publicación
    2022-11
    ISSN
    1470-160X
    DOI
    10.1016/j.ecolind.2022.109442
    Resumen
    The growth in the use of novel materials, as it is the case of the Metal Matrix Composites (MMCs), is producing a positive impact in production processes, allowing to obtain final products with improved functionalities, such as an increase of the strength-to-weight ratio, or enhancement of the mechanical properties of the material, minimizing as well the environmental impacts and production costs without compromising the required technical properties. To determine and compare the environmental impact of different processes employing these materials, this paper provides a comparative analysis of the Life Cycle Assessment (LCA), under ISO 14040:2006 framework and European ILCD guidelines, of two different manufacturing technologies, Green Sand Casting (GSC) and Low Pressure Die Casting (LPDC), for the particular case of a self-cleaning doorknob, produced by an aluminium alloy reinforced with hard TiO2 nanoparticles, that confers special characteristics to the composite, such as an increase of the hardness value and tensile strength, a high wear resistance, a good chemical stability, and antibacterial properties. The results show a slight difference between both technologies in terms of kg CO2 eq. emitted, with just a 3,16 % variation, where GSC emissions are 13,098 kg, whereas 12,684 kg are released from LPDC. In addition, an economic analysis was performed, showing a 17 % cost reduction in case of LPDC. This study presents for the first time a comparative Life Cycle Assessment of GSC and LPDC, when employing new nanocomposite materials, contributing with novel datasets and meaningful insights to improve the state of the art in the field, serving as well as a support for manufacturers in decision making process involving the use of these technologies.
    Palabras clave
    Metal matrix composites
    Life cycle assessment
    Low pressure die casting
    Green sand casting
    Titanium oxide
    Aluminium alloy
    Materia
    Materiales
    Materials
    URI
    http://hdl.handle.net/10259/7669
    Versión del editor
    https://doi.org/10.1016/j.ecolind.2022.109442
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    • Artículos ICCRAM-EST
    Attribution-NonCommercial-NoDerivatives 4.0 Internacional
    Documento(s) sujeto(s) a una licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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