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Article
Open AccessUnprecedented simultaneous enhancement in damage tolerance and fatigue resistance of zirconia/Ta composites
Dense (>98 th%) and homogeneous ceramic/metal composites were obtained by spark plasma sintering (SPS) using ZrO2 and lamellar metallic powders of tantalum or niobium (20 vol.%) as starting materials. The present...
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Article
Open AccessTight-binding approach to penta-graphene
We introduce an effective tight-binding model to discuss penta-graphene and present an analytical solution. This model only involves the π-orbitals of the sp2-hybridized carbon atoms and reproduces the two highes...