title: [Study of the mechanical properties of Co-Cr ceramic alloy after recasts].
abstract: OBJECTIVE
  To study the mechanical properties of Co-Cr ceramic alloy after recasts.
  
  
  METHODS
  Co-Cr ceramic alloy cast samples were prepared and recast for 3 times without adding any new Co-Cr ceramic alloy. The tensile strength, 0.2% yield strength, percentage of elongation, flexural strength, flexural modulus and Vickers hardness of each specimen were measured.
  
  
  RESULTS
  Being cast for different times, the Co-Cr ceramic alloy showed no significant differences on their tensile strength, 0.2% yield strength, percentage of elongation, flexural strength, flexural modulus and Vickers hardness.
  
  
  CONCLUSIONS
  Co-Cr ceramic alloy can be recast for 3 times at least, without decrease of the mechanical properties.
authors.affiliation: Dept. of Prosthodontics, School & Hospital of Stomatology, Fujian Medical University, Fuzhou 350002, China.
authors.forename: Song
authors.initials: S
authors.lastname: Yang
authors.forename: Hui
authors.initials: H
authors.lastname: Cheng
authors.forename: Xiu-Rong
authors.initials: XR
authors.lastname: Li
authors.forename: Wei-Qing
authors.initials: WQ
authors.lastname: Wu
authors.forename: Min
authors.initials: M
authors.lastname: Zheng
authors.forename: Ying-Hui
authors.initials: YH
authors.lastname: Wang
mesh_terms: D000497:Alloys; D002516:Ceramics; D002858:Chromium Alloys; D003799:Dental Stress Analysis; D006244:Hardness; D008422:Materials Testing; D016876:Metal Ceramic Alloys; D013718:Tensile Strength
chemical_list: D000497:Alloys; D002858:Chromium Alloys; D016876:Metal Ceramic Alloys