Attila Kovacs has successfully defended his thesis for Doctor of Philosophy at Oxford University. Attila has been working on fundamental mathematical modelling of alumina dissolution. Highlights from his work involve the identification of characteristic time scales for the freezing-melting-dissolution process as well as determining under which conditions alumina rafts may form. The supervision of Attila has been a successful joint venture between scholars at Oxford and NTNU as well as key researchers in Hydro and NORCE.