Paper Title:
A New Porous Mullite Nozzle for Refining Molten Aluminum
  Abstract

A new porous nozzles for refining molten aluminum were made from mullite,graphite powder, red mud and sodium silicate. The relationships between graphite content and permeability, sintering parameters and permeability, graphite content and compressive strength were investigated, respectively. The internal structures of the nozzle before and after sintering were observed by SEM. The experimental results show that the permeability of sample can be improved by sintering at temperature of 1000°C for 2 hours. As graphite content increases, the permeability of sample increases, yet the ultimate compressive strength decreases. The compressive strength can be enhanced by using combination of different sizes of mullite particles.

  Info
Periodical
Chapter
Chapter 8: Material Processing Technology
Edited by
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages
1701-1704
DOI
10.4028/www.scientific.net/AMM.117-119.1701
Citation
H. H. Zhan, J. M. Zeng, P. Chen, Z. Y. Lin, "A New Porous Mullite Nozzle for Refining Molten Aluminum", Applied Mechanics and Materials, Vols. 117-119, pp. 1701-1704, 2012
Online since
October 2011
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Price
$32.00
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