Capasso, Ilaria (2017) Design and Synthesis of Hybrid Ceramic Foams with Tailored Porosity. [Tesi di dottorato]
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| Tipologia del documento: | Tesi di dottorato |
|---|---|
| Lingua: | English |
| Titolo: | Design and Synthesis of Hybrid Ceramic Foams with Tailored Porosity |
| Autori: | Autore Email Capasso, Ilaria ilaria.capasso@unina.it |
| Data: | 10 Aprile 2017 |
| Numero di pagine: | 156 |
| Istituzione: | Università degli Studi di Napoli Federico II |
| Dipartimento: | Ingegneria Chimica, dei Materiali e della Produzione Industriale |
| Dottorato: | Ingegneria dei prodotti e dei processi industriali |
| Ciclo di dottorato: | 29 |
| Coordinatore del Corso di dottorato: | nome email Mensitieri, Giuseppe giuseppe.mensitieri@unina.it |
| Tutor: | nome email Liguori, Barbara [non definito] Caputo, Domenico [non definito] Verdolotti, Letizia [non definito] Lavorgna, Marino [non definito] |
| Data: | 10 Aprile 2017 |
| Numero di pagine: | 156 |
| Parole chiave: | Ceramics, Geopolymeric foams, hierarchical porosity |
| Settori scientifico-disciplinari del MIUR: | Area 09 - Ingegneria industriale e dell'informazione > ING-IND/22 - Scienza e tecnologia dei materiali |
| Depositato il: | 25 Apr 2017 17:38 |
| Ultima modifica: | 08 Mar 2018 13:40 |
| URI: | http://www.fedoa.unina.it/id/eprint/11779 |
| DOI: | 10.6093/UNINA/FEDOA/11779 |
Abstract
Alkali activated ceramic foams have been produced by using metakaolin and/or diatomite as aluminosilicate source, an aqueous sodium silicate solution as alkali activator and Na2SiF6 as a catalyst that promotes the gelification of the entire system. Two different techniques of direct foaming have been coupled, one based on chemical reactions with gas production and the other one based on a mechanical foaming. Then, other levels of hierarchical porosity (nanometric and macrometric scale) have been added to the produced expanded ceramic systems. This approach allows to tailor the chemical–physical properties and density of the resulted hybrid foams. The produced foams have been mechanically, chemically, physically and morphologically characterized. Moreover, their acoustic and thermal properties, in terms of thermal stability and conductivity, and also their fire behavior have been investigated.
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