Synthesis of Self-Bonded Pellets of ETS-4 Phase by New Methodology of Preparation

Euroinvent ICIR 2018

De Luca, P.^1 ; Mastroianni, C.^2 ; Nagy, J.B.^1

Dipartimento di Ingegneria Meccanica, Energetica e Gestionale, Italy^1

Dipartimento Ingegneria per l'Ambiente Ed Il Territorio Ed Ingegneria Chimica, Università della Calabria-Arcavacata di Rende, Rende (Cs)

87036, Italy^2

关键词: Chemical compositions;    Dry gels;    Electron microscopy (SEM);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/374/1/012003/pdf
DOI  :  10.1088/1757-899X/374/1/012003

来源: IOP

【 摘 要 】

We hereby present the results of a research in order to prepare self-bonded pellets of ETS-4 phase by a new methodology of preparation. In particular, the pellets were prepared by kneading crystals of ETS-4 phase and a dry gel, the latter being the precursor for the synthesis of the ETS-4 phase crystals. One of the innovative aspects that is proposed and highlighted in this work is represented by the fact that the dry-gel acts as a "binder". It is characterized by the same chemical composition of crystals, thus avoiding contamination with other elements. In addition, dry-gel allows, the promotion of nucleation phenomena and thus the formation of new crystals of ETS-4 during the pellets baking phases. The pellets were characterized by X-ray diffraction (XRD), Electron microscopy (SEM) and mechanical strength by hardness tester.