Premium
Fabrication of Mullite Powders by a Novel Processing
Author(s) -
Tang Y.F.,
Feng L.,
Chen Y.F.,
Li A.D.
Publication year - 2004
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200300521
Subject(s) - materials science , mullite , composite number , nucleation , suspension (topology) , fabrication , coating , chemical engineering , amorphous solid , homogeneous , composite material , mineralogy , ceramic , crystallography , medicine , chemistry , alternative medicine , mathematics , physics , organic chemistry , pathology , homotopy , pure mathematics , engineering , thermodynamics
A novel and general processing (heterogeneous nucleation and growth processing) was used to prepare composite coating particles with homogeneous component distribution. Composite coating particles consisting of α‐Al 2 O 3 cores with an outer amorphous silica layer were prepared by this processing using an ethanol suspension containing ammonia, tetraethylorthosilicate and α‐Al 2 O 3 . Fine mullite powders ( d 50 = 0.73 μm) were fabricated by calcinating these particles at 1500 °C for 2 h.