New insulating and refractory mineral foam: Structure and mechanical properties

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:780

Article

Marechal, Mathieu^1,2  Estrada, Estefania del Campo²  Moulin, Gabrielle¹  Almeida, Giana¹  Pin, L., V³  Cuvelier, Gerard¹  Bonazzi, Catherine¹ 

[1] Univ Paris Saclay, INRAE, AgroParisTech, UMR SayFood, F-91300 Massy, France

[2] SAS IPSIIS, F-77550 Moissy Cramayel, France

[3] Univ Paris Saclay, Cent Supelec, CEBB, LGPM,SFR Condorcet FR CNRS 3417, F-51110 Pomacle, France

关键词: Solid foam;    Tomography;    Multi-scale analysis;    Foaming;    Porous ceramic material;   

DOI  :  10.1016/j.msea.2020.139153

来源: Elsevier

【 摘 要 】

The present work focuses on the structure and mechanical properties of a new type of refractory thermal insulation mineral foam. Studies of the structure of solid foam enabled visualisation of the impact of the formulation and manufacturing processes on the final microstructure. Solid foam structures were investigated using scanning electron microscopy and X-ray tomography making it possible to reveal and quantify primary porosity, wall porosity, and microstructure, and to better understand the effects of the manufacturing steps. Mechanical compression and bending properties were evaluated on solid and ceramic foams and compared with the properties of commercial insulating mineral materials. At equivalent density, ceramic foam exhibited higher crushing strength than solid foam or commercial samples, with no modification of its microstructure.

【 授权许可】

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