Abstract:The microstructure of NiAl matrix high temperature lubricating composites containing BaO/TiO 2 metallic oxides were investigated. The NiAl-BaO/TiO 2 composites were fabricated by vacuum hotpressing sintering. The diffraction peaks of NiAl slightly shifted to the left with the addition of BaO/TiO 2 metallic oxide. The crystal plane distance of NiAl phase in the composite was bigger than that in NiAl material according to the Bragg equation. Meanwhile, the lattice distortion and dislocation occurred in the compo… Show more
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