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OF ANALYTICAL CONTROL FOR SILICA BRICK *
Author(s) -
Rozsa J. T.
Publication year - 1948
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/j.1151-2916.1948.tb14238.x
Subject(s) - brick , process engineering , materials science , control sample , mineralogy , spectrograph , pulp and paper industry , environmental science , composite material , chemistry , engineering , physics , spectral line , food science , astronomy
A bstract The prevalent use of silica brick has focused attention upon the need for control and improvement in quality. A review of the methods available reveals that many laboratory tests have been developed to avert expensive trial testing. It is significant, however, that the chemical knowledge of this product has lagged owing to (1) difficulty in sampling, (2) the tedious and time‐consuming aspects of wet chemical methods, and (3) the consequent lack of knowledge of the deleterious effects of certain secondary constituents. One of the newer analytical tools is the spectrograph. A total‐energy method has been developed to permit analysis of A1 2 O 3 , MgO, Fe 2 O 3 , CaO, Na 2 O, TiO 2 , K 2 O, ZrO 2 , MnO 2 , and Li 2 O. Thirty minutes are required for sample preparation and twenty‐five minutes for the spectrographic process. Present accuracy is well within production limits. This method is also suitable for the analysis of glass sand.