| 严鹏飞,严彪,王联凤,程灵钰.氮化硅光固化增材制造工艺与性能的研究[J].有色金属材料与工程,2018,39(6):12-15. |
| 氮化硅光固化增材制造工艺与性能的研究 |
| Study on Stereo Lithography Additive Manufacturing Process and Properties Silicon Nitride |
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| DOI：10.13258/j.cnki.nmme.2018.06.003 |
| 中文关键词: 增材制造 光固化 陶瓷浆料 3D打印 氮化硅 |
| 英文关键词:additive manufacturing stereo lithography apparatus ceramic slurry 3D printing silicon nitride |
| 基金项目:国家军工项目（17-163-13-ZT-010-036-02） |
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| 摘要点击次数: 3499 |
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| 中文摘要: |
| 通过设计浆料配方和设置打印参数，采用光固化增材制造（3D打印）的方法制备出氮化硅陶瓷样品。通过热重-差示扫描量热（TG-DSC）分析得到脱脂温度，确定了脱脂预烧结和高温陈化烧结工艺，得到了氮化硅陶瓷样品。试验结果：氮化硅陶瓷样品收缩率为水平方向65.1%，厚度方向80.0%；密度达到理论值的93.3%；抗拉强度为245.9~279.8 MPa，抗弯强度为308.5~333.2 MPa。平面方向收缩较大，可能引起了拉伸时的层状撕裂。 |
| 英文摘要: |
| Stereo lithography additive manufacturing (3D printing) method was used to prepare silicon nitride samples by designing ingredient slurry and setting printing parameter. Degreasing temperature was obtained by thermogravimetry-differential scanning calorimetry(TG-DSC) analysis. Degreasing pre-sintering and high temperature aging sintering processes were determined based on degreasing temperature, which was obtained by TG-DSC analysis. Silicon nitride samples were prepared. The results show that the horizontal and thick shrinkage of silicon nitride samples are 65.1% and 80.0% relatively. The density reaches 93.3% of the theoretical value. Tensile strength is 245.9-279.8 MPa. Bending strength is 308.5-333.2 MPa. Larger contraction in plane direction may cause layered tearing during tension. |
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