26 documents found, page 1 of 3

Synthesis, Dehydroxylation and Sintering of Porous Mg(OH)2-MgO Clusters: Evolut...

Made available in DSpace on 2022-04-28T19:28:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-02-01; Abstract: Magnesium hydroxide (Mg(OH)2 or brucite) and magnesium oxide (MgO or magnesia) are essential raw materials for many industrial applications. Several studies have explored their production methods and the changes in their properties caused by adjustments in synthesis and calcination conditions....

Taking the pulse of Earth's tropical forests using networks of highly distribut...

Made available in DSpace on 2021-06-25T11:16:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Agence Nationale Des Parcs Nationaux; Centre for International Forestry Research; Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS); David and Lucile Packard Foundation; European Space Agency; Leverhulme Trust; Gordon and Betty Moore Foundation; Fundação de Amparo à Pesquisa ...

Combined effects of SiO2 ratio and purity on physical properties and microstruc...

Made available in DSpace on 2021-06-25T10:24:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; The in situ formation of mullite (Al6Si4O13) is a complex process based on solid-state reactions strongly affected by the characteristics of Al2O3 and SiO2 sources. This study investigated the combined effects of variable SiO2/Al2O3 ratios and the presence of low-melting-point impurities on the physical...

Calcium aluminate cement in castable alumina: from hydrate bonding to the in si...

Calcium hexaluminate (CA6) is an intrinsically densification-resistant material, therefore, its porous structures are key materials for applications as high-temperature thermal insulators. This article reports on the combination of calcined alumina and calcium aluminate cement (CAC) in castable aqueous suspensions for the in situ production of porous CA6. The CAC content (10–34 vol%) and the curing conditions e...

Designing colloidal silica-bonded porous structures of in-situ mullite for ther...

Vibration and stress analysis of orthotropic laminated panels by active face pr...

Calcium aluminate cement as a binder to alumina-based porous ceramics

Mullite cytotoxicity and cell adhesion studies

Made available in DSpace on 2019-10-06T17:11:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-05-01; Mullite is a low cost ceramic material based on aluminous silicate and synthesized via solid state reaction. Mullite displays potential properties for application in the biomedical field, specially its high mechanical strength, however it is poorly characterized with respect to its specific cytotoxicity...

Porogenic behavior of water in high-alumina castable structures

Preparation and characterization of mullite-alumina structures formed "in situ"...