Publications

@article{Molinar-Diaz2023-kp,

title = {Optimisation of the flame spheroidisation process for the rapid 

 manufacture of Fe3O4-based porous and dense microspheres},

author = {Jes\'{u}s Molinar-D\'{i}az and John Luke Woodliffe and Elisabeth Steer and Nicola A Morley and Paul D Brown and Ifty Ahmed},

year  = {2023},

date = {2023-03-01},

journal = {Molecules},

volume = {28},

number = {6},

abstract = {The rapid, single-stage, flame-spheroidisation process, as 

 applied to varying Fe3O4:CaCO3 powder combinations, provides for 

 the rapid production of a mixture of dense and porous 

 ferromagnetic microspheres with homogeneous composition, high 

 levels of interconnected porosity and microsphere size control. 

 This study describes the production of dense (35-80 µm) and 

 highly porous (125-180 µm) Ca2Fe2O5 ferromagnetic microspheres. 

 Correlated backscattered electron imaging and mineral liberation 

 analysis investigations provide insight into the microsphere 

 formation mechanisms, as a function of Fe3O4/porogen mass ratios 

 and gas flow settings. Optimised conditions for the processing of 

 highly homogeneous Ca2Fe2O5 porous and dense microspheres are 

 identified. Induction heating studies of the materials produced 

 delivered a controlled temperature increase to 43.7 °C, 

 indicating that these flame-spheroidised Ca2Fe2O5 ferromagnetic 

 microspheres could be highly promising candidates for magnetic 

 induced hyperthermia and other biomedical applications.},

keywords = {calcium ferrites, ceramics, flame spheroidisation, magnetic   hyperthermia, magnetic particles, magnetite, porous microspheres},

pubstate = {published},

tppubtype = {article}

}