| Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding | |
| Li, He1,2; Liu, Yong-Sheng1,2; Liu, Yan-Song1,2; Zeng, Qing-Feng1; Hu, Ke-Hui3,4; Liang, Jing-Jing5; Lu, Zhi-Gang3,4 | |
| Corresponding Author | Liu, Yong-Sheng(yongshengliu@nwpu.edu.cn) |
| 2020-02-14 | |
| Source Publication | RARE METALS
 |
| ISSN | 1001-0521 |
| Pages | 12 |
| Abstract | The effect of heating rates during vacuum debinding on the microstructure and mechanical properties of alumina ceramics are discussed in this paper. The three-dimensional (3D)-printed alumina ceramics examined in this study were found to have a layered structure, and interlayer spacing increased as the heating rate increased. The pore diameter, shrinkage, flexural strength and hardness were found to decrease as the heating rate increased due to weak interfacial bonding between alumina particles. Shrinkage was found to be much larger along the Z direction than along the X or Y directions due to the layer-by-layer forming mode during 3D printing. 0.5 degrees C center dot min(-1) is considered the optimum heating rate, yielding ceramics with interlayer spacing of 0.65 mu m, shrinkage of 2.6%, 2.3% and 4.0% along the X, Y and Z directions, respectively, flexural strength of 27.5 MPa, hardness of 29.8 GPa, Vickers hardness of HV 266.5, pore diameter of 356.8 nm, bulk density of 2.5 g center dot cm(-3), and open porosity of 38.4%. The debinding procedure used in this study could be used to produce a high-quality ceramic which can be used for fabricating alumina ceramic cores. |
| Keyword | Heating rate Vacuum debinding Alumina ceramics Three-dimensional (3D) printing Stereolithography |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| DOI | 10.1007/s12598-020-01372-x |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2018YFB1106600] ; National Natural Science Foundation of China[51672217] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000516266300001 |
| Publisher | NONFERROUS METALS SOC CHINA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/137356 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Yong-Sheng |
| Affiliation | 1.Northwestern Polytech Univ, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Peoples R China 2.Northwestern Polytech Univ, NPU SAS Joint Res Ctr Adv Ceram, Xian 710072, Peoples R China 3.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China 4.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Li, He,Liu, Yong-Sheng,Liu, Yan-Song,et al. Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding[J]. RARE METALS,2020:12. |
| APA | Li, He.,Liu, Yong-Sheng.,Liu, Yan-Song.,Zeng, Qing-Feng.,Hu, Ke-Hui.,...&Lu, Zhi-Gang.(2020).Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding.RARE METALS,12. |
| MLA | Li, He,et al."Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding".RARE METALS (2020):12. |
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