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Effect of Sintering Temperature on Surface Morphology and Roughness of 3D-printed Silicon Ceramic Cores
Li Qiaolei1,2; Gu Yue3; Yu Xuehua4; Zhang Chaowei1; Zou Mingke1; Liang Jingjing1,3; Li Jinguo1,3
Corresponding AuthorLiang Jingjing(jjliang@imr.ac.cn) ; Li Jinguo(jgli@nnr.ac.cn)
2022-03-20
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume37Issue:3Pages:325-332
AbstractSingle crystal superalloy hollow blade is an important part of aero-engine, and its inner cavity structure is prepared by ceramic core. With the increase of thrust-weight ratio of aero-engine, the core structure is more and more complex. Traditional preparation technology is difficult to meet the requirements of complex core preparation. Stereolithography 3D printing of ceramic cores provides a feasible scheme for the preparation of complex cores. In order to improve the surface roughness of stereolithography 3D printed ceramic cores caused by step effect, this study used silicon-based core paste with solid content of 63% (in volume), and the cores of the green bodies were sintered at 1100 degrees C to 1300 degrees C. Microstructure, element distribution, phase composition, surface morphology, and roughness of the silicon-based ceramic core were analyzed. It is found that printed surface of the core is smooth without obvious surface defects. Roughness of the printed surfaces of the sintered cores at 1100, 1200 and 1300 degrees C are 1.83, 1.24 and 1.44 mu m, respectively. Their surface of lamellar stacking direction has lamellar structure characteristics, and microcracks appear between lamellar, and surface roughness of core sintered above 1200. meets the requirements (R-a <= 2.0 mu m) of hollow blade. Sintering temperatures affect the liquid content, mullite production, mullite formation morphology, and glass phase distribution of cores during the sintering process, and the surface roughness of stereolithography 3D-printed silicon ceramic cores is positively affected. Stereolithography 3D printing ceramic core technology combined with sintering process can produce a silicon-based ceramic core which surface roughness meets the requirements of an advanced hollow blade.
Keywordstereolithography 3D printing ceramic core surface morphology roughness
Funding OrganizationNational Science and Technology Major Project ; National Key Research and Development Program of China ; Fundamental Research Funds for Central Universities
DOI10.15541/jim20210654
Indexed BySCI
Language英语
Funding ProjectNational Science and Technology Major Project[2017-VI-0002-0072] ; National Science and Technology Major Project[Y2019-VII-0011-0151] ; National Key Research and Development Program of China[2018YFB1106600] ; Fundamental Research Funds for Central Universities[WK5290000002]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000778168100011
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173011
Collection中国科学院金属研究所
Corresponding AuthorLiang Jingjing; Li Jinguo
Affiliation1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.CAS Key Lab Space Mfg Technol, Beijing 100094, Peoples R China
4.Chinese Acad Sci, Shenyang Inst Automat, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li Qiaolei,Gu Yue,Yu Xuehua,et al. Effect of Sintering Temperature on Surface Morphology and Roughness of 3D-printed Silicon Ceramic Cores[J]. JOURNAL OF INORGANIC MATERIALS,2022,37(3):325-332.
APA Li Qiaolei.,Gu Yue.,Yu Xuehua.,Zhang Chaowei.,Zou Mingke.,...&Li Jinguo.(2022).Effect of Sintering Temperature on Surface Morphology and Roughness of 3D-printed Silicon Ceramic Cores.JOURNAL OF INORGANIC MATERIALS,37(3),325-332.
MLA Li Qiaolei,et al."Effect of Sintering Temperature on Surface Morphology and Roughness of 3D-printed Silicon Ceramic Cores".JOURNAL OF INORGANIC MATERIALS 37.3(2022):325-332.
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