直写式3D打印碳纤维/碳化硅陶瓷性能优化
Direct Writing 3D Printing of Carbon Fiber/Silicon Carbide Ceramics Performance Optimization
陈志刚 1李雅芳 2王烨 2陆晗婧2
作者信息
- 1. 邵阳学院 机械与能源工程学院,邵阳 422000;邵阳学院 高效动力系统智能制造湖南省重点实验室,邵阳 422000
- 2. 邵阳学院 机械与能源工程学院,邵阳 422000
- 折叠
摘要
在陶瓷制备过程中,烧结工艺至关重要,不仅影响陶瓷的显微组织结构,而且决定着陶瓷的力学性能.因此,为提升碳化硅/碳纤维陶瓷样品的性能,优化烧结工艺.采用直写式 3D打印的方式,以碳纤维/碳化硅为打印材料,通过三同轴喷嘴挤出打印,以4种不同的烧结工艺烧结打印的碳纤维/碳化硅陶瓷样品,分析不同烧结工艺对碳纤维/碳化硅陶瓷样品,组织和性能的影响.结果表明:经烧结工艺 3,即浸渍液聚碳硅烷与二甲苯的比例为2∶3、以 10℃·min-1 的升温速率达到烧结温度,烧结后的碳纤维/碳化硅陶瓷样品的组织和性能最好,其致密度可达到95.5%,抗弯强度可达到156 MPa.
Abstract
In the process of ceramic preparation,the sintering process plays a crucial role,which not only affects the microstructure of ceramics,but also determines the mechanical properties of ceramics.Therefore,in order to improve the properties of silicon carbide/carbon fiber ceramic samples,the sintering process was optimized.Using direct writing 3D printing,carbon fiber/silicon carbide was used as printing material,and the printed carbon fiber/silicon carbide ceramic samples were sintered by four different sintering processes through triaxial nozzle extrusion printing.The effects of different sintering processes on carbon fiber/silicon carbide ceramic samples,microstructure and properties were analyzed.The results show that the microstructure and properties of the sintered carbon fiber/SIC ceramic sample are the best,the density can reach 95.5%,and the bending strength can reach 156 MPa after sintering process 3,that is,the ratio of the impregnated polycarbosilane to xylene is 2∶3,and the sintering temperature is reached at the temperature of 10℃·min-1.
关键词
直写式3D打印/碳纤维/碳化硅/烧结工艺/抗弯强度/致密度Key words
direct writing 3D printing/carbon fiber/silicon carbide/sintering process/bending strength/consistency引用本文复制引用
基金项目
邵阳学院校级研究生科研创新项目(2022)(CX2022SY034)
出版年
2024
NETL
NSTL
万方数据