Arc plasma melting technique is a simple method for the synthesis of high melting point materials. In this article, mullite was synthesized bytransferred arc plasma (TAP) and nontransferred arc plasma (non-TAP) melting processes, and the results were compared. The mixes of alumina andsilica powders (3:2 mole ratios) were ball milled for four hours and then melted in an arc plasma torch, used in transferred and nontransferred mode,at 5 kWinput power and two minutes of processing time. Argon gas was used as a plasma-forming gas. The crystalline phases and the microstructuralfeatures of the melted samples were determined by X-ray diffraction (XRD) and scanning electron microscope (SEM), respectively. A completecrystallization of mullite, with dense, thick whiskers-shaped crystals, was achieved in TAP processing of the alumina/silica system. On the other hand,the non-TAP process produced porous mullite along with a small amount of residual alumina phase. Differential thermal analysis (DTA) curves of thesynthesized mullite samples allowed a deeper understanding of the mechanisms of mullite formation during the two different processes.
Synthesis of Mullite by Means of Transferred and Nontransferred Arc Plasma Melting / S., Yugeswaran; K., Suresh; V., Selvarajan; Lusvarghi, Luca; Z., Karoly; J., Szépvölgyi. - In: MATERIALS AND MANUFACTURING PROCESSES. - ISSN 1042-6914. - STAMPA. - 25(2010), pp. 909-914.
Data di pubblicazione: | 2010 |
Titolo: | Synthesis of Mullite by Means of Transferred and Nontransferred Arc Plasma Melting |
Autore/i: | S., Yugeswaran; K., Suresh; V., Selvarajan; Lusvarghi, Luca; Z., Karoly; J., Szépvölgyi |
Autore/i UNIMORE: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1080/10426910903536725 |
Rivista: | |
Volume: | 25 |
Pagina iniziale: | 909 |
Pagina finale: | 914 |
Codice identificativo ISI: | WOS:000285336600002 |
Codice identificativo Scopus: | 2-s2.0-77956521626 |
Citazione: | Synthesis of Mullite by Means of Transferred and Nontransferred Arc Plasma Melting / S., Yugeswaran; K., Suresh; V., Selvarajan; Lusvarghi, Luca; Z., Karoly; J., Szépvölgyi. - In: MATERIALS AND MANUFACTURING PROCESSES. - ISSN 1042-6914. - STAMPA. - 25(2010), pp. 909-914. |
Tipologia | Articolo su rivista |
File in questo prodotto:

I documenti presenti in Iris Unimore sono rilasciati con licenza Creative Commons Attribuzione - Non commerciale - Non opere derivate 3.0 Italia, salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris