Work Package 5

Glass-based joining and coating of different  materials

Glass-based joining and coating of different materials for sustainable building and environmental-friendly, high temperature, clean energy production applications. The coating materials will be designed, prepared and applied by slurry methods or by colloidal processing including electrophoretic deposition of nanoparticles. Self-healing and multi-layered coatings are especially designed for specific applications (e.g. thermonuclear fusion applications, bioactive scaffolds and implants, wear resistant pulleys). Nanostructured ceramic coatings for hydrophilic and antibacterial surfaces are also being developed.

The joining materials are designed and synthesised (by traditional and innovative, e.g. SPS, processing techniques available in NANOFORCE) with coefficient of thermal expansion, wettability and surface reactivity matched to that of the substrates, then characterised by the most appropriate mechanical tests, eventually supported by FEM analysis. Furthermore, the design of customized joining tests will be performed.

WORK PACKAGE LEADER: POLITO

Description of work

Task 5.1 Wear and oxidation resistant glass-based coatings for clean energy production, biomedical and textile industry (Task leader COLOR, other participants POLITO, ERLANGEN, MERL)

Design, fabrication and characterization of customized coating materials prepared and applied by slurry methods or by colloidal processing including electrophoretic deposition of nanoparticles. Self-healing and multi-layered coatings are especially designed for specific applications (e.g. thermonuclear fusion applications, bioactive scaffolds and implants, building and environmental-friendly applications, wear resistant pulleys).

Task 5.2 Glass-based joining of different materials (ceramics, composites, metals) for high temperature and energy production applications (Task leader POLITO, other participants ERLANGEN, MERL, IPM, NANOFORCE)

Design, preparation and characterization of customized joining materials based on glasses and glass-ceramics (for example Solid oxide fuel cells, nuclear reactors, …). The sealants will be designed, developed and tested under working conditions.

T5.3 Comparison between different shear test configurations used to measure the shear strength of glass-joined samples (Task leader POLITO, other participants MERL, IPM, NANOFORCE)

Design of customized joining tests. A comprehensive approach to this problem requires a statistically relevant number of tests obtained by using several different shear test methods on the same joined material: results should be compared and critically discussed in order to define advantages and disadvantages of each  test, also taking in account finite element modelling results.

Recruited researchers to be involved (ESR= early stage researcher, ER= experienced researcher):

ESR1will “Design, produce and characterise glass base joining materials for high temperature and solid oxide fuel cell applications” and will be involved in T5.2 and T5.3.

ESR14 will performed “Numerical modelling of through thickness degradation of coated and hybrid glass fibre reinforced structural materials in solvents, acids and other hazardous fluids” and will be involved in T5.1.

ESR16 will study “New bulk glass ceramics and glass based coating on ceramic and metals” and will be involved in T5.1

ER1 will study “Design and development of glass fibre based sensors embedded in smart coatings” and will be involved in T5.1.

ER2 will study “Electrophoretic deposition of glass (nano)particles for advanced composite coatings” and will be involved in T5.1

ER5 will perform the “Characterisation of crack development on bi-material interface under different loading condition” and will be involved in T5.1, T5.2 and T5.3.

ER6 will study “Glass-based joining of different materials(ceramics, composites, metals) for high temperature and energy production applications using SPS” and will be involved in T5.2.

Glass-ceramic joined SiC/SiC composite for thermonuclear fusion application (Politecnico di Torino)

Glass-ceramic joined SiC: fracture surface (Politecnico di Torino)

Ba-free glass-ceramic sealant for Solid Oxide Fuel Cell (Politecnico di Torino)

Spark Plasma Sintering (Nanoforce)