치과용 Ti-Nb-X계 타이타늄 합금 개발
Development of Ti-Nb-X System Titanium Alloys for dentals
원대희, 윤동주, 이민호, 김양수, 김병일,
소속 상세정보
원대희 ( Won Dae-Hee ) - 순천대학교 산학협력중심대학 육성사업단
윤동주 ( Yoon Dong-Joo ) - 순천대학교 산학협력중심대학 육성사업단
이민호 ( Lee Min-Ho ) - 전북대학교 치의학전문대학원 치과생체재료학교실 구강생체과학연구소 및 BK21사업
김양수 ( Kim Yang-Soo ) - 한국기초과학지원연구원 순천센터
김병일 ( Kim Byung-Il ) - 순천대학교 신소재응용공학부 미래전략신소재공학과
KMID : 0362220100370020171
Abstract
This study developed titanium alloy with low elastic modulus to be used as dental implant. The new titanium alloy was prepared as ternary and quaternary alloy by adding tantalum (Ta) and zirconium (Zr) into the Ti-Nb-X system alloy. In designing the new titanium alloy, two physical variables bond order (Bo) and d-electron orbit energy level (Md) were varied. Bond order (Bo) was around 2.8364～2.8742, and d-electron orbit energy level (Md) was 2.4572～2.4757. The elastic modulus of the developed titanium alloy was 87.2～63.0 GPa. In the results of X-ray diffraction analysis, ß-phase was observed in all the specimens, but α-phase texture was also observed in 7Nb15Ta8.2Zr alloy. According to the results of potentiodynamic polarization experiment, 24Nb17Ta5Zr alloy showed the highest corrosion potential as 3.0㎷.
키워드
Titanium alloys; Low elastic modulus; Bond order; d-orbital energy level
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