Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Porcelain Bonding Strength and Mechanical Properties of Sintered Ni-Cr-Ti Alloy for Dental Prosthodontics

치과보철용 Ni-Cr-Ti 소결체합금의 포셀린결합력 및 기계적 특성

  • Choe, Han-Cheol (Department of Dental Materials, College of Dentistry, Chosun University) ;
  • Park, Seon-Yeong (Department of Dental Materials, College of Dentistry, Chosun University) ;
  • Shim, Myung-Sub (Leaders in Industry-university Cooperation, Chosun University)
  • 최한철 (조선대학교 치과대학 치과재료학교실) ;
  • 박선영 (조선대학교 치과대학 치과재료학교실) ;
  • 심명섭 (조선대학교 LINC사업단)
  • Received : 2016.12.19
  • Accepted : 2016.12.30
  • Published : 2016.12.31
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Abstract

In this study, porcelain bonding strength and mechanical properties of sintered Ni-Cr-Ti alloy for dental prosthodontics have been researched experimentally. Mechanical and morphological characteristics of the alloys were examined by Vickers hardness test, tensile and bonding strength test, surface roughness test, field-emission scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction. In the sintered Ni-13Cr-xTi alloys, morphology of sintered alloy showed porous matrix diffused with alloying elements of Cr and Ti, and showed dendritic structure after melting process. From the XRD results, the second phases of NiCr, $Ni_3Cr$, and $Ni_3Ti$ were formed in the case of sintered and melted Ni-13Cr-xTi alloys. The tensile strength and hardness of Ni-13Cr-xTi alloys increased, as Ti content increased. Surface roughness increased, as Ti content increased. The bonding strength between metal and porcelain of Ni-13Cr-5Ti alloy was higher than those of Ni-13Cr and Ni-13Cr-10Ti alloys

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References

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