Effect of Al powder content on the properties and microstructure of Y<sub>2</sub>O<sub>3</sub>-based ceramic core

LU Gang; WU Qian; CHEN Xiao; CHEN Yisi; WEN Yanbo; YAN Qingsong

doi:10.13801/j.cnki.fhclxb.20231214.005

Volume 41 Issue 8

Aug. 2024

Turn off MathJax

Article Contents

Article Navigation > Acta Materiae Compositae Sinica > 2024 > 41(8): 4366-4374

LU Gang, WU Qian, CHEN Xiao, et al. Effect of Al powder content on the properties and microstructure of Y2O3-based ceramic core[J]. Acta Materiae Compositae Sinica, 2024, 41(8): 4366-4374. doi: 10.13801/j.cnki.fhclxb.20231214.005

Citation:

LU Gang, WU Qian, CHEN Xiao, et al. Effect of Al powder content on the properties and microstructure of Y₂O₃-based ceramic core[J]. Acta Materiae Compositae Sinica, 2024, 41(8): 4366-4374. doi: 10.13801/j.cnki.fhclxb.20231214.005

Citation:

PDF( 5907 KB)

Effect of Al powder content on the properties and microstructure of Y₂O₃-based ceramic core

doi: 10.13801/j.cnki.fhclxb.20231214.005

LU Gang¹,
WU Qian¹,
CHEN Xiao^{1
,
,},
CHEN Yisi^{2, 3},
WEN Yanbo¹,
YAN Qingsong¹

1.
School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China
2.
State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
3.
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

Funds: National Natural Science Foundation of China (52265051); Science and Technology Research Project of Jiangxi Provincial Department of Education (GJJ2201118)

Received Date: 2023-10-19
Accepted Date: 2023-12-02
Rev Recd Date: 2023-11-20

Available Online: 2023-12-15

Publish Date: 2024-08-01

Abstract

Abstract

In order to obtain ceramic core with high chemical reaction resistance for titanium alloy investment casting, the Al powders were introduced into Y₂O₃-based ceramic core as the sintering aids, and then the modified ceramic core was prepared by hot injection molding. The effects of Al powder content on the densification characteristic, mechanical properties, microstructure and phase composition of Y₂O₃-based ceramic cores were studied. The results indicate that the sintering shrinkage and high temperature deflection of Y₂O₃-based ceramic core decrease with the increasing of Al powder content. The oxidation of Al element led to the expansion of the Al powders, which is beneficial to resist the shrinkage of Y₂O₃-based ceramic core during the sintering process. The densification of ceramic core is enhanced by liquid-phase sintering of Al powder melting and the interface reaction sintering of Al-Y₂O₃, as well as the diffusion sintering between Al₂O₃ and Y₂O₃ matrix. The formation of Al₂Y₄O₉ crystals in matrix inhibits the secondary sintering of intergranular fine Y₂O₃ particles, which improves the high temperature creep resistance of the ceramic core. With a small amount of Al powder introducing, the Al₂Y₄O₉ and Y₂Al crystals are formed and then coated on the surface of the matrix Y₂O₃ particles, and the interfacial bonding strength is improved by the second phase strengthening. The Y₂O₃-based ceramic core modified by 2wt%Al powder, exhibits the optimal flexural strength about 34.38 MPa with a typical cleavage fracture, which is 49.15% higher than that of the ceramic core without Al powder. However, the expansion caused by excessive oxidation of Al powder can expands the distance between the ceramic particles. Therefore, the interfacial bonding strength of Y₂O₃-based ceramic core is weakened obviously, and then the ceramic core tends to fracture along the grain boundaries, resulting in the decrease of the bearing capacity under the load.
- Al powder,
- Y₂O₃-based ceramic core,
- sintering shrinkage,
- flexural strength,
- creep resistance,
- fracture behavior
Long Abstrsct
Innovation Points

FullText(HTML)

References(30)

References

[1]	原国森, 兖利鹏, 韩艳艳. 钛合金的应用进展[J]. 热加工工艺, 2017, 46(4): 13-16. YUAN Guosen, YAN Lipeng, HAN Yanyan. Application progress of titanium alloys[J]. Hot Working Technology, 2017, 46(4): 13-16(in Chinese).
[2]	李婷. 钛合金熔模铸造用氧化物陶瓷型壳的制备工艺研究 [D]. 南京: 南京航空航天大学, 2013. LI Ting. Study on preparation technology of oxide ceramic shell for investment casting of titanium alloy [D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2013(in Chinese).
[3]	杨俊伟, 汤海波, 田象军, 等. 增材制造钛合金凝固晶粒调控研究进展[J]. 稀有金属材料与工程, 2023, 52(9): 3316-3331. YANG Junwei, TANG Haibo, TIAN Xiangjun, et al. Research progress on solidification grain control of additive manufacturing titanium alloys[J]. Rare Metal Materials and Engineering, 2023, 52(9): 3316-3331(in Chinese).
[4]	肖强伟, 贾志伟, 范世玺, 等. 基于复合铸型的钛合金双流道闭式叶轮铸造工艺研究[J]. 特种铸造及有色合金, 2023, 43(9): 1275-1278. XIAO Qiangwei, JIA Zhiwei, FAN Shixi, et al. Research on casting process of titanium alloy double-channel closed impeller based on composite casting[J]. Special Casting and Non-Ferrous Alloys, 2023, 43(9): 1275-1278(in Chinese).
[5]	QIN Y, PAN W. Effect of silica sol on the properties of alumina-based ceramic core composites[J]. Materials Science and Engineering: A, 2009, 508(1-2): 71-75. doi: 10.1016/j.msea.2008.12.016
[6]	JIANG W, LI K, XIAO J, et al. Effect of silica fiber on the mechanical and chemical behavior of alumina-based ceramic core material[J]. Journal of Asian Ceramic Societies, 2017, 5(4): 410-417. doi: 10.1016/j.jascer.2017.09.002
[7]	翟小菲, 陈婧祎, 张学勤, 等. 陶瓷型芯3D打印研究进展与挑战[J]. 陶瓷学报, 2023, 44(5): 831-848. ZHAI Xiaofei, CHEN Jingyi, ZHANG Xueqin, et al. Recent progresses and challenges of 3D printing of ceramic cores[J]. Journal of Ceramics, 2023, 44(5): 831-848.
[8]	梁启如, 吴玉胜, 刘孝福, 等. 航空发动机涡轮叶片铸造用陶瓷型芯研究进展[J]. 铸造, 2018, 67(9): 790-793. LIANG Qiru, WU Yusheng, LIU Xiaofu, et al. Research progress of ceramic core for aero engine turbine blade casting[J]. Foundry, 2018, 67(9): 790-793(in Chinese).
[9]	SAHA R L, NANDY T K, MISRA R D K, et al. Evaluation of the reactivity of titanium with mould materials during casting[J]. Bulletin of Materials Science, 1989, 12: 481-493. doi: 10.1007/BF02744918
[10]	SAHA R L, NANDY T K, MISRA R D K, et al. On the evaluation of stability of rareearth oxides as face coats for investment casting of titanium[J]. Materials Science and Engineering B, 1990, 21(3): 559-566.
[11]	RENJIE C, MING G, HU Z, et al. Interactions between TiAl alloys and yttria refractory material in casting process[J]. Journal of Materials Processing Technology, 2010, 210: 1190-1196.
[12]	姜延亮, 刘鸿羽, 马志毅, 等. 钛合金金属型铸造工艺研究[J]. 铸造, 2016, 65(5): 454-458. JIANG Yanliang, LIU Hongyu, MA Zhiyi, et al. Research on metal mold casting process of titanium alloy[J]. Foundry, 2016, 65(5): 454-458(in Chinese).
[13]	康永旺, 郭丰伟, 李明. 一种精密铸造用氧化钇基陶瓷型芯及其制备方法: CN110256077A [P]. 2019-09-20. KANG Yongwang, GUO Fengwei, LI Ming. A yttrium oxide based ceramic core for precision casting and its preparation method: CN110256077A [P]. 2019-09-20(in Chinese).
[14]	YOSHIDA H, SAKKA Y, YAMAMOTO T, et al. Densification behaviour and microstructural development in undoped yttria prepared by flash-sintering[J]. Journal of the European Ceramic Society, 2014, 34(4): 991-1000. doi: 10.1016/j.jeurceramsoc.2013.10.031
[15]	ZHOU P, WU G, BUTT F K, et al. Preparation of Y₂O₃ coated CaO ceramic cores with anti-hydration performance and high-interface stability against interface reaction of Ti-6Al-4V alloys[J]. Journal of Nanoscience and Nanotechnology, 2019, 19(6): 3420-3428. doi: 10.1166/jnn.2019.16034
[16]	ZHANG J B, YU J B, LI Q, et al. Effect of CaO and SiO₂ on the properties of Y₂O₃-based ceramic core materials[J]. Journal of Asian Ceramic Societies, 2021, 9(3): 1103-1113. doi: 10.1080/21870764.2021.1939242
[17]	于子豪, 刘阳, 杨治刚, 等. 粒度配比和烧结制度对Y₂O₃陶瓷型芯性能的影响研究[J]. 铸造, 2021, 70(11): 1313-1318. YU Zihao, LIU Yang, YANG Zhigang, et al. Effect of particle size ratio and sintering system on properties of Y₂O₃ ceramic core[J]. Foundry, 2021, 70(11): 1313-1318(in Chinese).
[18]	廖陆林, 谭寿洪, 江东亮. 以Al-B₄C-C为烧结助剂的SiC陶瓷液相烧结研究[J]. 无机材料学报, 2002, 17(2): 265-270. LIAO Lulin, TAN Shouhong, JIANG Dongliang. Study on liquid phase sintering of SiC ceramics with Al-B₄C-C as sintering assistant[J]. Journal of Inorganic Materials, 2002, 17(2): 265-270(in Chinese).
[19]	MANNA A, BHATTACHARAYYA B. A study on machinability of Al/SiC-MMC[J]. Journal of Materials Processing Technology, 2003, 140(1-3): 711-716. doi: 10.1016/S0924-0136(03)00905-1
[20]	李鑫, 牛书鑫, 姚建省, 等. 金属Al粉对氧化硅基陶瓷型芯的性能及组织的影响[J]. 无机材料学报, 2019, 34(2): 207-212. doi: 10.15541/jim20180206 LI Xin, NIU Shuxin, YAO Jiansheng, et al. Effect of metal Al powder on properties and microstructure of silica based ceramic cores[J]. Journal of Inorganic Materials, 2019, 34(2): 207-212(in Chinese). doi: 10.15541/jim20180206
[21]	JIANG P, MA J, LI Y, et al. Enhanced properties of MgO-Al₂O₃ composite materials with Al powder addition under 1300°C creep test and its mechanism analysis[J]. Solid State Sciences, 2017, 66: 38-43. doi: 10.1016/j.solidstatesciences.2016.12.008
[22]	周连卓, 王周福, 王玺堂, 等. 添加Al粉、Si粉对镁铝尖晶石质免烧耐火材料结构与性能的影响[J]. 耐火材料, 2022, 56(5): 380-385. ZHOU Lianzhuo, WANG Zhoufu, WANG Xitang, et al. Effect of adding Al powder and Si powder on the structure and properties of MG-Al spinel refractory[J]. Journal of Refractories, 2022, 56(5): 380-385(in Chinese).
[23]	国防科学技术工业委员会. 熔模铸造陶瓷型芯性能试验方法: HB 5353—2004 [S]. 北京: 中国航空综合技术研究所, 2004. Commission of Science, Technology and Industry for National Defence. Test method for performance of investment casting ceramic core: HB 5353—2004 [S]. Beijing: China Aeronautical Technology Research Institute, 2004(in Chinese).
[24]	SONG Z Y, WU Y C, YANG Y, et al. Preparation of alumina ultrafine powders and its modification by titania doping[J]. Journal of the Chinese Ceramic Society, 2004, 32(8): 920-924.
[25]	刘于昌, 黄晓巍. 液相烧结氧化铝陶瓷及其烧结动力学分析[J]. 硅酸盐学报, 2006, 34(6): 647-651. LIU Yuchang, HUANG Xiaowei. Liquid phase sintering of alumina ceramics and its sintering kinetics[J]. Journal of the Chinese Ceramics, 2006, 34(6): 647-651(in Chinese).
[26]	张雄飞. 铝/飞灰复合材料制备及化学反应热力学研究 [D]. 昆明: 昆明理工大学, 2001. ZHANG Xiongfei. Study on preparation and chemical reaction thermodynamics of aluminum/fly ash composites [D]. Kunming: Kunming University of Science and Technology, 2001(in Chinese).
[27]	HUO M, LI Q, LIU J, et al. In-situ synthesis of high-performance Al₂O₃-based ceramic cores reinforced with core-shell structures[J]. Ceramics International, 2022, 48(22): 33693-33703. doi: 10.1016/j.ceramint.2022.07.315
[28]	YANG S Q, LAN X H, HUANG N K. Role of Y₄Al₂O₉ in high temperature oxidation resistance of NiCoCrAlY-ZrO₂·Y₂O₃ coatings[J]. Journal of Materials Sciences and Technology, 2007, 23(4): 568.
[29]	YU Z, WU G, JIANG L, et al. Effect of coating Al₂O₃ reinforcing particles on the interface and mechanical properties of 6061 alloy aluminum matrix composites[J]. Materials Letters, 2005, 59(18): 2281-2284. doi: 10.1016/j.matlet.2004.06.080
[30]	CHEN Y Y, SI Y F, KONG F T, et al. Effects of yttrium on microstructures and properties of Ti-17Al-27Nb alloy[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(2): 316-320. doi: 10.1016/S1003-6326(06)60054-X