Premium
The Solubility Limit of CaO in α‐Alumina at 1600°C
Author(s) -
Akiva Ran,
Berner Alex,
Kaplan Wayne D.
Publication year - 2013
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12442
Subject(s) - solubility , scanning electron microscope , analytical chemistry (journal) , saturation (graph theory) , detection limit , chemistry , materials science , nuclear chemistry , mineralogy , chromatography , composite material , mathematics , combinatorics
The solubility limit of Ca in 99.99% pure α‐ Al 2 O 3 (alumina) was measured using a wavelength dispersive spectrometer mounted on a scanning electron microscope. Al 2 O 3 samples were equilibrated at a concentration which ensured saturation of the Al 2 O 3 grains with Ca , and were quenched in water from 1600°C. The results were compared with those from samples which were furnace cooled from 1600°C. For the quenched samples, the Ca solubility limit was found to be 51 ± 1 ppm, which is significantly larger than the solubility limit for samples which were furnace cooled (26 ± 1 ppm).