Abstract
The solubility limit of Si in α-alumina was measured using wavelength-dispersive spectroscopy on a scanning electron microscope. Samples were doped with Si such that the equilibrated material would contain two phases: mullite (3Al2O3·2SiO2) and alumina saturated with Si. Thus the amount of Si measured in the alumina grains represents the solubility limit. Measurements were conducted on water-quenched and furnace-cooled samples. For the quenched samples the Si solubility limit in Al2O3 was found to be 188 ± 7 ppm at 1600°C.
Original language | English |
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Pages (from-to) | 40-43 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 86 |
DOIs | |
State | Published - 1 Sep 2014 |
Keywords
- Alumina
- Ceramics
- Silicon
- Sintering
- Wavelength-dispersive X-ray spectroscopy
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- General Materials Science