Effect of primary particle size on spray formation, morphology and internal structure of alumina granules and elucidation of flowability and compaction behaviour | Zendy

Pandu Ramavath | Zendy; Ramanathan Papitha | Zendy; Malotha Ramesh | Zendy; P. Suresh Babu | Zendy; Roy Johnson | Zendy

Open Access

Effect of primary particle size on spray formation, morphology and internal structure of alumina granules and elucidation of flowability and compaction behaviour

Author(s) -

Pandu Ramavath,

Ramanathan Papitha,

Malotha Ramesh,

P. Suresh Babu,

Roy Johnson

Publication year - 2014

Publication title -

processing and application of ceramics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.326

H-Index - 15

eISSN - 2406-1034

pISSN - 1820-6131

DOI - 10.2298/pac1402093r

Subject(s) - compaction , materials science , particle size , morphology (biology) , composite material , compressibility , particle (ecology) , particle size distribution , relative density , spray drying , chemical engineering , thermodynamics , sintering , oceanography , physics , biology , engineering , genetics , geology

Three dierent alumina powders with varying particle sizes were subjected to spray drying under identical conditions and eect of particle size on heat transfer eciency and mechanism of formation of granules was elucidated. Morphology, internal structure and size distribution of granules were studied and evaluated with respect to their ow behaviour. In order to estimate the elastic interaction of granules, the granules were subjected to compaction under progressive loading followed by periodic unloading. Compaction curves were plotted and compressibility factor was estimated and correlated with predicted and measured green density values

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