Phase Stability and Properties of Ti-Nb-Zr Thin Films and Their Dependence on Zr Addition

Jeonghyeon Yang; Munkhbayar Baatarsukh; Joohyeon Bae; Sunchul Huh; Hyomin Jeong; Byeongkeun Choi; Taehyun Nam; Jungpil Noh

doi:10.3390/ma11081361

Phase Stability and Properties of Ti-Nb-Zr Thin Films and Their Dependence on Zr Addition

Materials (Basel). 2018 Aug 6;11(8):1361. doi: 10.3390/ma11081361.

Authors

Jeonghyeon Yang¹, Munkhbayar Baatarsukh², Joohyeon Bae³, Sunchul Huh⁴, Hyomin Jeong⁵, Byeongkeun Choi⁶, Taehyun Nam⁷, Jungpil Noh⁸

Affiliations

¹ Department of Mechanical System Engineering, Gyeongsang National University, 38, Cheondaegukchi-gil, Tongyeong 53064, Korea. jh.yang@gnu.ac.kr.
² Department of Energy and Mechanical Engineering and Institute of Marine Industry, Gyeonsang National University, 38, Cheondaegukchi-gil, Tongyeong 53064, Korea. mundag9911@gmail.com.
³ Department of Energy and Mechanical Engineering and Institute of Marine Industry, Gyeonsang National University, 38, Cheondaegukchi-gil, Tongyeong 53064, Korea. jhyeonb@gnu.ac.kr.
⁴ Department of Energy and Mechanical Engineering and Institute of Marine Industry, Gyeonsang National University, 38, Cheondaegukchi-gil, Tongyeong 53064, Korea. schuh@gnu.ac.kr.
⁵ Department of Energy and Mechanical Engineering and Institute of Marine Industry, Gyeonsang National University, 38, Cheondaegukchi-gil, Tongyeong 53064, Korea. hmjeong@gnu.ac.kr.
⁶ Department of Energy and Mechanical Engineering and Institute of Marine Industry, Gyeonsang National University, 38, Cheondaegukchi-gil, Tongyeong 53064, Korea. bgchoi@gnu.ac.kr.
⁷ Department of Materials Engineering and Convergence Technology & RIGECT, Gyeonsang National University, 501, Jinju-daero, Jinju 52828, Korea. tahynam@gnu.ac.kr.
⁸ Department of Energy and Mechanical Engineering and Institute of Marine Industry, Gyeonsang National University, 38, Cheondaegukchi-gil, Tongyeong 53064, Korea. nohjp@gnu.ac.kr.

Abstract

Ternary Ti-Nb-Zr alloys were prepared by a magnetron sputtering method with porous structures observed in some of them. In bulk, in order to control the porous structure, a space holder (NH₄HCO₃) is used in the sintering method. However, in the present work, we show that the porous structure is also dependent on alloy composition. The results from Young's modulus tests confirm that these alloys obey d-electrons alloy theory. However, the Young's modulus of ternary thin films (≈80⁻95 GPa) is lower than that for binary alloys (≈108⁻123 GPa). The depth recovery ratio of ternary Ti-Nb-Zr thin films is also higher than that for binary β-Ti-(25.9⁻34.2)Nb thin film alloys.

Keywords: Ti-Nb-Zr ternary alloys; Young’s modulus; biomedical; porous structure.