논문 해외 국제전문학술지(SCI급) Oxidation and Ablation Behaviors of Mo–Si–B Alloys and Mo–Si–B–Ag Alloys
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2017-09
- 저자명 M. S. Kim, J. H. Lee, Y. J. Kim, M. K. Kim, and J. S. Park∗
- 학술지명 Science of Advanced Materials
- 발행처명 American Scientific Publishers
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
홈페이지
논문 초록 (Abstract)
Since Mo based alloys exhibit superior mechanical properties at high temperatures and have a high melting point of ∼2500 °C, many studies have been carried out in order to use the alloy system in high temperature applications. Especially, since the Mo rich area in Mo–Si–B system shows a thermodynamic equilibrium of ductile Mo (solid solution) and a ternary phase (Mo5SiB2), the alloy system is a potential material for high temperature applications. In the current study, Mo–Si–B alloys and Mo–Si–B–Ag alloys have been investigated. The fabricated alloys were oxidized via heating with laboratory furnace at 800, 1100 and 1300 °C in air. At the same time, ablation tests were performed using a gas torch with a mixture of LPG and oxygen. When 5 at% of Ag was added to the alloy, the alloy exhibited an enhanced oxidation resistance, but the flame ablation resistance did not show a significant difference. The oxidation mechanism for the alloy systems with and without Ag additions are discussed in terms of microstructural observations and weight changes.