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The relationships between mechanical properties of Si 3 N 4 /BN multilayer materials and the geometrical factors, number of layers (N) and layer thickness ratio (λ h ), have been studied. At a given number of layers, with the increase of layer thickness ratio, the toughness and bending strength both increase, and when it continues to increase, the two curves both level off...
This paper studied the composition of the interface-layer (Ti 3 SiC 2 layer), the residual stresses and the interface structure in the Al 2 O 3 /Ti 3 SiC 2 multilayer composites. About 50 vol.% TiC was determined by X-ray diffraction (XRD) in the interface-layer. The TiC phase was formed probably due to the diffusion of Si-rich liquid from the Ti ...
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