METHOD FOR PREPARING A LOW YOUNG'S MODULUS POROUS TITANIUM-ZIRCONIUM-NIOBIUM COMPOSITES FOR BIOMATERIAL AND A LOW YOUNG'S MODULUS POROUS TITANIUM-ZIRCONIUM-NIOBIUM COMPOSITES FOR BIOMATERIAL
The present invention provides a method for producing a low elasticity porous titanium-niobium-zirconium biomaterial composite, and the low elasticity porous titanium-niobium-zirconium biomaterial composite produced through the method. The method comprises the following steps: (a) mixing and milling 50-90 wt% of titanium (Ti) powder, 0.1-40 wt% of niobium (Nb) powder, and 0.1-30 wt% of zirconium (Zr) powder； (b) mixing the Ti-Nb-Zr mixed powder pulverized by being milled in the previous step with 5-60 parts by weight of ammonium bicarbonate (NH_4HCO_3) and 0.5-10 parts by weight of titanium hydride (TiH_2) which is a pore forming agent on the basis of 100 parts by weight of the Ti-Nb-Zr mixed powder； and (c) producing a composite by sintering the mixture from step (b) at 600-1,000°；C. A stress shielding phenomenon is alleviated, and excellent adhesion with biological tissue is ensured.본 발명은 (a) 티타늄(Ti) 분말 50~90wt%, 나이오븀(Nb) 분말 0.1~40wt%, 및 지르코늄(Zr) 분말 0.1~30wt%을 혼합하고 밀링하는 단계； (b) 상기 밀링에 의해 분쇄된 Ti-Nb-Zr 혼합분말 에 상기 Ti-Nb-Zr 혼합분말 100중량부를 기준으로 탄산수소암모늄(NH4HCO3) 5~60중량부 및 기공형성제인 티타늄 하이드라이드(TiH2) 0.5~10 중량부를 혼합하는 단계； (c) 상기 (b)단계의 혼합물을 600~1,100℃로 소결하여 복합체를 형성하는 단계；를 포함하는 저탄성 다기공 티타늄-나이오븀-지르코늄 생체용 복합체를 제조하는 방법 및 상기 방법으로 제조된 저탄성 다기공 티타늄-나이오븀-지르코늄 생체용 복합체를 제공한다.
