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Influence of Process Parameters on the Morphology of Spray‐Dried BaCl 2 Powders
Author(s) -
Shoulders W. Taylor,
Bizarri Gregory,
Bourret Edith,
Gaume Romain M.
Publication year - 2016
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.13869
Subject(s) - spray drying , granule (geology) , materials science , sintering , compaction , nozzle , spray nozzle , chemical engineering , morphology (biology) , aqueous solution , volumetric flow rate , mineralogy , composite material , chemistry , thermodynamics , organic chemistry , physics , genetics , biology , engineering
Spray‐drying is an effective method for producing powder aggregates with controlled size and morphology. Here, we report on a systematic study aimed at determining how spray‐drying parameters such as nozzle temperature, gas flow, salt concentration and solution feed rate, influence the characteristics of BaCl 2 granules prepared from aqueous solutions. We correlate the granule characteristics to these conditions through the use of processing maps and modeling. It is found that well‐dispersed, high density and spherical aggregates, which are favorable for subsequent powder compaction and sintering, can be obtained within a limited range of processing conditions.