Pulsed laser deposited MnCo₂O₄ protective layer on SS430 for solid oxide fuel cell application

The growth and oxidation study of pulsed laser deposited MnCo₂O₄ protective layer on SS430 substrate for solid oxide fuel cell application is demonstrated. MnCo₂O₄ has been achieved in three different ways including, deposition at higher substrate temperature (700°C), and deposition at room temperature on pre-oxidized and untreated SS430 substrate followed by annealing at 700°C for 2 hrs. X-ray diffraction and Raman spectroscopy has been applied to demonstrate the kind of phases developed in each case. These three samples were subjected to heat treatment at 750°C for 5 hr. The extent of undesired Fe₂O₃ phase formation in the post deposition heat treated samples is discussed based on Raman spectroscopic results.