Title:
CO-CR BASED DENTAL ALLOY HAVING OUTSTANDING CUTTING PROCESSABILITY, OXIDATION RESISTANCE, CORROSION RESISTANCE AND AESTHETICS
Document Type and Number:
WIPO Patent Application WO/2017/034306
Kind Code:
A1
Abstract:
The present invention relates to a Co-Cr based dental alloy having outstanding cutting processability, oxidation resistance, corrosion resistance and aesthetics whereby it is possible to ensure outstanding oxidation resistance, in addition to having an appropriate elongation percentage while also having high strength. According to the present invention, the Co-Cr based dental alloy having outstanding cutting processability, oxidation resistance, corrosion resistance and aesthetics according to the present invention comprises Cr: 22 to 29 wt.%, Al: 2 to 6.5 wt.%, Y: 0.05 to 1.5 wt.%, Si: 1 to 3 wt.% and the remainder is Co, and may also contain Mo: 1 to 9 wt.%.
Inventors:
NA YOUNG-SANG (KR)
SEO SEONG-MOON (KR)
SEO SEONG-MOON (KR)
Application Number:
PCT/KR2016/009346
Publication Date:
March 02, 2017
Filing Date:
August 23, 2016
Export Citation:
Assignee:
KOREA MACH & MATERIALS INST (KR)
International Classes:
C22C19/07; A61C8/00; C22C1/02
Foreign References:
| JPH0647702A | 1994-02-22 | |||
| US20080232998A1 | 2008-09-25 | |||
| US20080241788A1 | 2008-10-02 |
Other References:
KIM, KI - BEAK ET AL.: "Comparison of the Marginal and Internal Fit of Cores Fabricated by Ni-Cr Alloy(non-beryllium) and Co-Cr Alloy", THE JOURNAL OF KOREAN ACADEMY OF DENTAL TECHNOLOGY, vol. 34, no. 4, 2012, pages 353 - 359, XP055366559
PARK, SOO - CHUL ET AL.: "Corrosion Resistance Evaluation in the Co-Cr Alloys for the Full and Removable Partial Denture Metal Frameworks and the Porcelain-fused-to-metal Crown", THE JOURNAL OF KOREAN ACADEMY OF DENTAL TECHNOLOGY, vol. 34, no. 3, pages 237 - 245, XP055366560
PARK, SOO - CHUL ET AL.: "Corrosion Resistance Evaluation in the Co-Cr Alloys for the Full and Removable Partial Denture Metal Frameworks and the Porcelain-fused-to-metal Crown", THE JOURNAL OF KOREAN ACADEMY OF DENTAL TECHNOLOGY, vol. 34, no. 3, pages 237 - 245, XP055366560
Attorney, Agent or Firm:
LEE, Hyeong-Woo (KR)
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