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Niobium nitride (NbN) and Zirconium nitride (ZrN) were sputtered on titanium (Ti) substrates by Direct-current (DC) reactive magnetron sputtering,and worked as intermediate layers of a Ti-porcelain interface.The X-ray diffraction (XRD) results proved that both NbN and ZrN deposits were cubic crystalline phases.Bonding strength of the Ti-porcelain was designated Group Control (27.2 ± 0.75 MPa),Group NbN (43.1 ± 0.59 MPa),and Group ZrN (52.4 ± 0.80 MPa).Surface roughness was Group Control (1.863 ± 0.10 tμm),Group NbN (2.343 ± 0.07 μm),and Group ZrN (2.346 ± 0.10 μm).