Data for: Highly thermally conductive polybenzoxazine composites based on boron nitride flakes deposited with Copper particles

The diffraction peaks at 2θ=26.764, 41.597, 43.873, 50.149, 55.164, 59.559, 71.41, 75.932, 82.174 correspond to h-BN platelets. It was seen that the rest peaks could be exactly indexed to the pure cubic phase of Cu (JCPDS PDF#04-0836). The reflection peaks appearing at 2θ=43.297, 50.433 and 74.13 are indexed as (111), (200) and (220) planes of Cu, respectively, indicating that the sphere particle consisted of Cu only.