Effect of CTAB as a foaming agent on the properties of alumina ceramic membranes

Um estudo sobre as relações de pertencimento entre os moradores do entorno e a área de proteção ambiental do Itapiracó, Maranhão, Brasil

“…As membranas desempenham um papel crucial na tecnologia de separação, oferecendo processos economicamente viáveis, eliminando a necessidade de produtos químicos, operando em temperaturas ambientes e sendo simples de utilizar em separações de misturas líquidas e gasosas (Zawrah et al, 2014). Seu uso tem crescido em vários setores econômicos devido a suas vantagens, incluindo estabilidade química e térmica, resistência mecânica, longa vida útil e baixo impacto ambiental.…”

Alumina–zircon refractory materials for lining of the basin of glass furnaces: Effect of processing technique and TiO2 addition

“…In this process, well dispersed ceramic slurry is poured into a mold and dried for binder removal. Distinct advantages of the gelcasting process over the other conventional ceramic forming processes are ease of implementation, low cost mold material, high green strength, very homogeneous and compact material properties and ease of binder removal [6][7][8][9][10][11][12][13]. Moreover, there is no limitation to the size of the ceramic parts and can be used with a range of materials, as long as, the material forms a stable suspension.…”

Nanoporous Alumina Membranes for Sugar Industry: An Investigation of Sintering Parameters Influence onUltrafiltration Performance

“…A membrane is a selective barrier that permits particular molecules/ions to pass through by a combination of diffusion and/or sieving mechanisms [11]. Membranes can be polymeric or ceramics and can be permeable, semi-permeable, and impermeable [12]. Currently, polymers are the leading candidate materials for membranes, but they possess a variety of limitations, such as low fluxes, a low mechanical strength, a proclivity to bio-fouling, and a restricted chemical and thermal stability [13].…”