Fig. 4From: Microstructural analysis of iron ore samples with bitumen as a binderSEM images (×1000) of a magnetite particles at 973 K, b magnetite-bitumen mixture at 973 K, c hematite particles at 973 K, d hematite-bitumen mixture at 973 K, e magnetite-bitumen mixture at 1273 K, and f hematite-bitumen mixture at 1273 KBack to article page