Can (Mg,Y)-PSZ-Spinel composites be a valuable option for dental application?

Autor: Guillaume Bonnefont, Goffredo De Portu, Laurent Gremillard, Thierry Douillard, Jérôme Chevalier

Publikováno v: International Journal of Applied Ceramic Technology
International Journal of Applied Ceramic Technology, 2018, 15 (4), pp.873-883. ⟨10.1111/ijac.12876⟩

cited By 0; International audience; Twenty-year-old samples of (Mg,Y)-PSZ—Spinel composite were characterized to assess their microstructure and mechanical properties after such a long period of natural aging. The amount of the different phases was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c84d8094f7539a46231bb06578218764
https://doi.org/10.1111/ijac.12876

A comparative assessment of metal-Al2O3 joints formed using two distinct transient-liquid-phase-forming interlayers

Autor: Thomas B. Reynolds, Goffredo de Portu, Marco Boffelli, Yasuhito Takahashi, Giuseppe Pezzotti, Andreas M. Glaeser

Publikováno v: Journal of materials science 50 (2015): 2467–2479. doi:10.1007/s10853-014-8803-1
info:cnr-pdr/source/autori:Goffredo de Portu, Andreas M. Glaeser, Thomas B. Reynolds, Yasuhito Takahashi, Marco Boffelli, Giuseppe Pezzotti/titolo:A Comparative Assessment of Metal-Al2O3 Joints Formed Using Two Distinct Transient-Liquid-Phase-Forming Interlayers/doi:10.1007%2Fs10853-014-8803-1/rivista:Journal of materials science/anno:2015/pagina_da:2467/pagina_a:2479/intervallo_pagine:2467–2479/volume:50

Multilayer metallic interlayers with two different architectures, one Nb-based and the other V-based, both designed to produce a thin transient-liquid-phase layer, have been used to bond high-purity Al2O3 ceramics. The mechanical properties of the re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7543e4d164a0dfd790c784ff0ac1d93
https://doi.org/10.1007/s10853-014-8803-1

Monitoring the t → m Martensitic Phase Transformation by Photoluminescence Emission in Eu3+ -Doped Zirconia Powders

Autor: Pietro Riello, Goffredo de Portu, Francesco Enrichi, Enrico Zucchetta, Gabriele Sponchia, Alvise Benedetti, Riccardo Marin

Publikováno v: Journal of the American Ceramic Society 96 (2013): 2628–2635. doi:10.1111/jace.12363
info:cnr-pdr/source/autori:R. Marin, G. Sponchia, E. Zucchetta, P. Riello, F. Enrichi, G. de Portu, A. Benedetti/titolo:Monitoring the t-> m Martensitic Phase Transformation by Photoluminescence Emission in Eu3+-Doped Zirconia Powders/doi:10.1111%2Fjace.12363/rivista:Journal of the American Ceramic Society/anno:2013/pagina_da:2628/pagina_a:2635/intervallo_pagine:2628–2635/volume:96

In this work, we demonstrate that the martensitic t -> m phase transformation of ZrO2 powder stabilized with Eu3+ and Eu3+/Y3+ ions, can be effectively monitored by photoluminescence (PL) spectroscopy. As the luminescent properties of Eu3+ from withi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9fa72b3346990de6199b8395bcde286
https://doi.org/10.1111/jace.12363

Strain Mismatch in Ceramic Multilayers: Determination by Strength Measurements

Autor: Francis Chalvet, Tanja Lube, Goffredo de Portu, Javier Pascual

Publikováno v: ResearcherID
Montanuniversität Leoben
International Summer School on “Layered, Functional Gradient Ceramics, and Thermal barrier Coatings, pp. 239–242, Minorca (Spagna), 11-16 June 2006
info:cnr-pdr/source/autori:J. Pascual, F. Chalvet, T. Lube, G. De Portu/congresso_nome:International Summer School on “Layered, Functional Gradient Ceramics, and Thermal barrier Coatings/congresso_luogo:Minorca (Spagna)/congresso_data:11-16 June 2006/anno:2007/pagina_da:239/pagina_a:242/intervallo_pagine:239–242
Key engineering materials 333 (2007): 239–242.
info:cnr-pdr/source/autori:J. Pascual, F. Chalvet, T. Lube, G. De Portu/titolo:“Strain Mismatch in Ceramic Multilayers: Determination by Strength Measurements”/doi:/rivista:Key engineering materials/anno:2007/pagina_da:239/pagina_a:242/intervallo_pagine:239–242/volume:333

In asymmetrical 3-layer laminates with constant overall and inner layer thickness, the residual compressive stresses in the two outer layers are not longer the same: compression is higher in the thinner layer.Therefore, it can be expected that the st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::463b5cced3171afb0ffc7e272f63d475
https://doi.org/10.4028/www.scientific.net/kem.333.239

Residual Stress Assessment in the Al2O3\Mullite Based Laminated System

Autor: Giuseppe Pezzotti, Goffredo de Portu, Mylene Brach, Lorenzo Micele, Francis Chalvet

Publikováno v: Key Engineering Materials. 333:243-246

To improve mechanical properties of mullite, a mullite-Al2O3\mullite laminate composite was prepared. Lamination generates residual stresses within the structure, measured by piezospectroscopy. A preliminary and complete piezo-spectroscopic character

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::56cf2d0c8991f3d579dd0f634f66f307
https://doi.org/10.4028/www.scientific.net/kem.333.243