Fig. 3
From: Low temperature self-densification of high strength bulk hexagonal boron nitride

TEM images of HSHBN-30 sample. TEM image of squashed BN onions and hBN flakes (a); HRTEM images of hBN flakes (b); BN onion associated SAED pattern (c), deformed and entwined BN onions (d), and the curly hBN layer shells stripped from the BN onions (e, f). The scale bar is 500 nm in a, and represents 5 nm in b–f