Anomalous microstructure and magnetocaloric properties in off-stoichiometric La–Fe–Si and its hydride*
He Chuna),b),c), Zhang Ming-Xiaoa),b), Shao Yan-Yana),b), Dong Jing-Dua),b), Yan A-Rua),b), Liu Jian†a),b)
       
SEM backscattered electron images of as-cast bulk La1.7Fe11.6Si1.4 (a), annealed for 1 day (b) and 3 day (c) at 1323 K. (d) Single crystalline hydride particle.