Fig. 5. Solidified microstructure of the different salt core materials: (a) KN, (b) KC, (c) KNC, (d) KNC þ BP, (e) KNC þ GP and (f) KNC þ BGP
Fig. 5. Solidified microstructure of the different salt core materials: (a) KN, (b) KC, (c) KNC, (d) KNC þ BP, (e) KNC þ GP and (f) KNC þ BGP