LAURA MONTANARO

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Full Professor

Deputy Rector
Member (Board of Governors)
Member (Academic Senate)
Member of Interdepartmental Center (SISCON - Safety of Infrastructures and Constructions)

+39 0110904680 / 4680 (DISAT)

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Institute Institute of Science and Engineering of Materials for Innovative Technologies
Research groups/teams
Laboratories
Research projects

Funded by competitive calls

  • Multiscale modelling/characterisation and fabrication of nanocomposite ceramics with improved toughness, (2022-2025) - Responsabile Scientifico

    Nationally funded research - PRIN

    ERC sectors

    PE8_8 - Materials engineering (metals, ceramics, polymers, composites, etc.)

    SDG

    Obiettivo 9. Costruire un'infrastruttura resiliente e promuovere l'innovazione ed una industrializzazione equa, responsabile e sostenibile

    Abstract

    The production of strong yet tough ceramics is particularly relevant for the biomedical and aerospace sectors, where the achievement of metal-like reliability still represents a holy grail.Ceria-stabilized zirconia (Ce-TZP) has been extensively studied due to its ability to undergo larger amount of stress-induced phase transformation, which leads to higher fracture toughness than Yttria-stabilized zirconia (Y-TZP), due to its ability to initiate stress-induced t-m phase transformation at lower stresses. In contrast, Ce-TZP materials develop a lower mechanical strength in comparison with Y-TZP, and to overpass this drawback complex, multiphase Ce-TZP-based nanocomposites can be produced. However, the mechanisms regulating crack nucleation and propagation in these nanocomposites are still unclear, and fundamental research efforts are needed. CONCERTO will develop a suite of harmonized multiscale materials modelling and characterization methods, to support and accelerate the production of Ce-TZP nanocomposites and coatings, with unprecedented combination between strength and toughness. Within CONCERTO, three strategies to increase crack propagation resistance will be investigated by using integrated modelling/characterization techniques: (i) phase transformations in front of the crack tip, (ii) second phase toughening and (iii) grain boundary engineering. To investigate such mechanisms, advanced micro-nanoscale characterization methods will be developed and validated, in direct comparison with a novel Phase-Field Method (PFM) for Finite Element Modelling of the microstructural effects on crack nucleation and propagation. A multi-scale design of selected ceramic components will be performed, to demonstrate the ability to engineer the materials from the nano/microstructural features to the macro-structure, and through all processing ceramic steps, from composite powder elaboration, to shaping and sintering of the final parts. An emerging 3D printing technology for technical ceramics,stereolithography, will be used for the first time to fabricate simple and complex-shaped demonstrators, in parallel with the exploitation of thermal spray technology to fabricate coatings. Finally, two impactful case studies are selected to demonstrate the relevance of the research conducted, namely optimization and functional validation of (a) Ce-TZP materials for application in dental prostheses and (b)Ce-TZP composite thermal barrier coatings for high-temperature applications. To achieve such ambitious goals, a multi-disciplinary coordination activity will be established, linking reference characterization laboratories in Italy with capacities on advanced multi-technique microstructural/nanomechanical analysis (UniRoma3), to reference groups on multiscale modelling of fracture (UniUD), product manufacturing (PoliTo, UniMore), and industrial exploitation of ceramic nanocomposites for biomedical and aeronautical applications (PoliTo, UniMore, UniTo).

    Departments

  • LONGLIFE - ADVANCED MULTIFUNCTIONAL ZIRCONIA CERAMICS FOR LONG-LASTING IMPLANTS, (2012-2015) - Responsabile Scientifico

    UE-funded research - VII PQ - COOPERATION - Nanosciences, Nanotechnologies, Materials and New Product

    View project record on CORDIS

    Abstract

    The aim of LONGLIFE is to develop new multi-functional zirconia oral and spine (lumbar inter-vertebral disc) implants, with a perfect reliability and a lifetime longer than 60 years. Such an ambitious goal, motivated by the risks and costs associated to revision surgery, will only be reachable by an improvement of the Low Temperature Degradation (LTD) resistance of zirconia and by an enhancement of the osseointegration capabilities of the implants in contact with bone. As zirconia-based ceramics are the only oxides able to couple high stress resistance and fracture toughness thanks to transformation toughening, a strong effort will be given to the improvement of their stability in the presence of water, without decreasing their toughness and strength. Osseointegration will be improved by the chemical and topographical modification of the surface. We aim at producing zirconia surfaces able to decrease the risk of bacterial adhesion and improve bone apposition, for better clinical success. Given the specific nature of ceramics, especially versus the risk of brittle failure, we aim at developing new ceramic-oriented designs for the implants, and not just ‘copy and paste’ from metal implants as it is generally done at present. This ‘implants by design’ approach will ensure a better, long-lasting success of oral and spine implants. At last, the LONGLIFE consortium will develop acceleration tests which will be able to reproduce more effectively the different degradation mechanisms and their interplay in a multi-physics approach, in order to ensure an implant reliability and lifetime superior to current implants’.

    Countries

    • Svezia
    • Germania
    • Francia
    • Italia
    • Lussemburgo
    • Lettonia

    Institutes/Companies

    • RISE IVF AB
    • DOCERAM MEDICAL CERAMICS GMBH
    • KISCO INTERNATIONAL SA
    • UNIVERSITA DEGLI STUDI DI TRIESTE
    • WAVESTONE LUXEMBOURG SA
    • AKEO PLUS
    • NTTF COATINGS GMBH
    • PLAZMA KERAMIKA TECNOLOGIJA SIA
    • ANTHOGYR SAS
    • POLITECNICO DI TORINO
    • UNIVERSITAETSKLINIKUM FREIBURG
    • KISCO INTERNATIONAL SAS

    Departments

    • Dipartimento di Scienza dei Materiali e Ingegneria Chimica
  • Gel-casting di idrossiapatite nanostrutturata per la realizzazione di scaffolds ceramici, (2007-2009) - Responsabile Scientifico

    Nationally funded research - PRIN

    Abstract

    Development of ceramic scaffolds made of nanostructured hydroxyapatite through a gel-casting process

    Countries

    • ITALIA

    Departments

    • Dipartimento di Scienza dei Materiali e Ingegneria Chimica
  • PROGETTAZIONE DI MATERIALI CERAMICI CELLULARI PER LA FILTRAZIONE DI POLVERI FINI DISPERSE IN FLUSSI GASSOSI, (2004-2008) - Responsabile Scientifico

    Regionally funded research

    Countries

    • ITALIA

    Departments

    • Dipartimento di Scienza dei Materiali e Ingegneria Chimica
  • Sviluppo di un nuovo disegno di sensore di gas per deposizioni multiple a strato spesso, (1999-2001) - Responsabile Scientifico

    Nationally funded research - PRIN

    Abstract

    Investigation on an improved disegn of a gas sensor by thick-film multiple depositions

    Countries

    • ITALIA

    Departments

    • Dipartimento di Scienza dei Materiali e Ingegneria Chimica

Funded by commercial contracts

  • ACCORDO QUADRO DI COLLABORAZIONE ISTITUZIONALE TRA IL POLITECNICO DI TORINO E ARPA - AGENZIA REGIONALE PER LA PROTEZIONE AMBIENTALE DEL PIEMONTE, (2015-2020) - Responsabile Scientifico

    Framework agreements

    Countries

    • ITALIA

    Institutes/Companies

    • ARPA - AGENZIA REGIONALE PER LA PROTEZIONE AMBIENTALE -
  • INDIVIDUAZIONE E SVILUPPO DI TEMI DI RICERCA DI BREAKTHROUGH, (2011-2011) - Responsabile Scientifico

    Commercial Research

    Countries

    • ITALIA

    Institutes/Companies

    • ENI S.p.A.

    Departments