Fig. 7
From: Low temperature self-densification of high strength bulk hexagonal boron nitride

Models showing the strain and stress distributions on the hBN flake and BN onion. Models of hBN flake (a) and BN onion (b); equivalent elastic strain of hBN flake (c) and BN onion (d); equivalent stress of hBN flake (e) and BN onion (f)