共 50 条
Effect of CaTiO3 on sintering properties of Y2O3-based ceramic shell via extrusion-based 3D printing for titanium alloy casting
被引:12
|作者:
Yang, Li
[1
]
Feng, Qicheng
[1
]
Tang, Shiyan
[1
]
Ling, Qi
[1
]
Liu, Xinwang
[1
]
Fan, Zitian
[1
]
机构:
[1] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Extrusion-based 3D printing;
Investment casting;
CaTiO3;
Titanium alloy;
MECHANICAL-PROPERTIES;
TURBINE-BLADES;
DIRECT INK;
MICROSTRUCTURE;
FABRICATION;
MOLDS;
STEREOLITHOGRAPHY;
FILLER;
D O I:
10.1016/j.ceramint.2023.03.061
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Yttrium oxide (Y2O3) is widely used in titanium (Ti) alloy casting for its low activity, strength, and heat resis-tance. Wax mold and ceramic coating preparation in traditional investment casting is cumbersome; hence, this work proposes extrusion-based 3D printing of Y2O3-based ceramic shells. This study investigates how trace CaTiO3 affects sintering performance, showing that small amounts can reduce sintering temperature and significantly increase bending strength. Adding 2 mol% CaTiO3 increased the bending strength from 4.3 to 43.1 MPa after sintering at 1500 degrees C, while not wetting with the Ti-6Al-4V titanium alloy. This method offers a promising way to produce high-performance Y2O3-based ceramic shells with lower sintering temperatures.
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页码:19338 / 19345
页数:8
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