Now showing items 19-38 of 39

    Effect of deformation on the mechanical behavior of an advanced steel of high resistance with high manganese content 

    Lima, Marcos Natan da Silva (Date of defense: 2023-06-30)

    (English) Pre-salt oil exploration means a new development path for Brazil. This activity stimulates investments from national and foreign companies, boosts the production of technology, promotes greater professional ...

    Hot forming behavior of ni-base superalloys and their modeling 

    Ozturk, UtkuDeniz (Date of defense: 2019-12-13)

    Numerical and experimental simulation of engineering materials has been an emerging topic for recent decades. Reliable and efficient numerical simulations are only possible through correct and pragmatic modeling approaches. ...

    Improvement of polyester dyeing at low temperature 

    Radei, Shahram (Date of defense: 2020-07-16)

    In this thesis the polyester dyeing at low temperatures has been assessed with two different methods: exhaustion method and thermosol method. Exhaustion dyeing process was performed with high and low molecular-weight ...

    Mesoporous material systems for catalysis and drug delivery 

    Atakan, Aylin (Date of defense: 2018-05-29)

    This study evolved to its last form primarily around the development of a hybrid material is the core of the work. This hybrid material is then further explored for two different applications which are catalysis and drug ...

    Micromechanical properties of inorganic multiphase materials 

    Besharatloo, Hossein (Date of defense: 2021-05-13)

    This thesis is dedicated to understanding the micromechanical properties of multiphase materials which are indispensable in today’s engineering applications. The mechanical behavior of these materials is dictated by the ...

    Micromechanics of quaternary AICrSiN coatings on hard substrates 

    Liang, Jing (Date of defense: 2023-10-27)

    (English) AlCrSiN quaternary coatings are extensively utilized in the tool industry due to their outstanding mechanical performance as protective coatings. These coatings are formed by introducing elements of Al and Si to ...

    Multiscale mechanical and microstrutural characterization of titanium and zirconium carbonitride hard coatings 

    El Azhari, Idriss (Date of defense: 2020-07-21)

    The present dissertation is an in-depth investigation from the macro to atomic scale of industrial wear-resistant CVD hard coatings deposited on cemented carbides for cutting tool applications. Micro-compression tests at ...

    Nuevos interconectores pulvimetalúrgicos para sistemas de óxido sólido de alta temperatura: desarrollo, optimización y prototipado 

    Monterde Gascón, María Carmen (Date of defense: 2023-02-27)

    (English) The transition towards to low carbon energy generation is promoting the installation of renewable energy sources, their successful deployment requires efficient energy storage systems in order to meet demand. ...

    On the measurement of fracture toughness to understand the cracking resistance of advanced high strength steel sheets 

    Frómeta Gutiérrez, David (Date of defense: 2021-01-28)

    Automotive designers are constantly facing new challenges to meet the more and more stringent safety and CO2 emission legislations. Concerning the latter, vehicle lightweighting has become one of the main goals of the ...

    Perceived quality characterization of micro-textured injection moulded components for automotive interior applications 

    Gamonal Repiso, Pablo (Date of defense: 2021-07-22)

    The present PhD thesis is framed within a collaborative project in which institutions such as the Universitat Politècnica de Catalunya Barcelona-Tech, the Centre Català del Plàstic and SEAT S.A have participated. The main ...

    Polymer blends based on postconsumer waste of opaque poly(ethylene terephthalate) and polypropylene 

    Loaeza Becerril, Alfonso David (Date of defense: 2023-07-19)

    (English) In recent years, new white and opaque PET bottles (PET-O) have appeared and are used for packaging dairy products. These bottles contain titanium dioxide (TiO2) particles to prevent deterioration of the packaged ...

    Preparation and characterization of reactive extrusion modified PLA/ABS blends and its foams 

    Kamrani Moghadam, Mohammad Reza (Date of defense: 2021-07-21)

    The current thesis takes place within the context of the projects MAT2016-80045-R "Aplicaciones industriales de compuestos y mezclas basados en REX-PLA" and the project "PLAIABS Blends: Recydability and weight reduction" ...

    Procesado y caracterización de propiedades mecánicas de acero TWIP mediante técnicas pulvimetalúrgicas 

    García Aguirre, Karen Adriana (Date of defense: 2020-03-26)

    Twinning induced plasticity (TWIP) steels possess both, very high tensile strength and large elongation together with high formability and an outstanding high strain hardening. The unique combination of its distinctive ...

    Processing, microstructure and mechanical properties of ceria-stabilized zirconia-based ceramics co-doped with calcia and alumina 

    Tovar Vargas, Daniela (Date of defense: 2021-07-20)

    In recent years, zirconia ceramics have been used in many applications. Some of them include tool forming due to its high strength and fracture toughness, thermal barrier coatings on turbines engines due to its low thermal ...

    Promoting cardiac regeneration by biomimetic microenvironments 

    Martínez Hernández, Marina (Date of defense: 2023-12-20)

    (English) Cardiovascular diseases are the most common cause of death in the world. The heart has a very limited regeneration capacity. Thus, following tissue damage – e.g., myocardial infarction –, heart transplantation ...

    Properties of poly(lactic acid) in presence of cellulose and chitin nanocrystals 

    Singh, Shikha (Date of defense: 2020-10-09)

    Plastic based materials are widely used for packaging applications. However, disposal of such petroleum-based materials e.g. polyethylene (PE) and polypropylene (PP) has become a huge threat to the environment due to its ...

    Small-scale testing of micromechanical response of cemented carbides 

    Sandoval Ravotti, Daniela Andreina (Date of defense: 2019-11-11)

    Cemented carbides are composite materials widely used in different industry fields within applications involving wear, due to their outstanding wear resistance. The most commonly used are WC-Co grades, for Co wettability ...

    Surface characterization and cell instructive properties of superficially modified dental zirconia 

    Minguela Díaz, Joaquim (Date of defense: 2021-07-21)

    Tetragonal polycrystalline zirconia doped with 3 mol% yttria (3Y-TZP) has become one of the most popular dental ceramics. Thanks to its outstanding mechanical properties (including high hardness. Toughness and wear ...

    Synthesis and characterization of oxides produced by high temperature corrosion on grade 300 and 350 maraging steels 

    Cerra Flórez, Mauro Andrés (Date of defense: 2021-10-04)

    The aging heat treatments in maraging steels are fundamental to achieving their excellent mechanical properties and, in some applications using oxidation surface treatments lead to induce a superficial layer formed by iron ...

    Synthesis and characterization of plasma-treated liquid and hydrogels for bone cancer therapy 

    Hamouda, Inés (Date of defense: 2020-12-16)

    This PhD Thesis tallies with the Starting Grant project funded by the European Research Council (ERC) entitled “Atmospheric Pressure plAsma meets biomaterials for bone Cancer HEaling” (APACHE) and has been carried out ...