  The fabrication, characterisation, and superconductivity of MgB2 thick films
grown on stainless steel substrate were studied. XRD, SEM, and magnetic
measurements were carried out. It was found that the MgB2 thick films can be
fast formed by heating samples to 660 oC then immediately cooling down to room
temperature. XRD shows above 90% MgB2 phase and less than 10 % MgO. However,
the samples sintered at 800 oC for 4 h contain both MgB4 and MgO impurities in
addition to MgB2. The fast formed MgB2 films appear to have a good grain
connectivity that gives a Jc of 8 x 10 4 A/cm2at 5 K and 1 T and maintained
this value at 20 K in zero field.
