[1]吴甲民,陈安南,刘梦月,等.激光选区烧结用陶瓷材料的制备及其成型技术[J].中国材料进展,2017,(7-8):036-40.[doi:10.7502/j.issn.1674-3962.2017.07.11]
 WU Jia-Min,CHEN An-Nan,LIU Meng-Yue,et al.Preparation of Ceramic Materials Used for Selective Laser Sintering and Related Forming Methods[J].MATERIALS CHINA,2017,(7-8):036-40.[doi:10.7502/j.issn.1674-3962.2017.07.11]
点击复制

激光选区烧结用陶瓷材料的制备及其成型技术()
分享到:

中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2017年第7-8期
页码:
036-40
栏目:
前沿综述
出版日期:
2017-08-31

文章信息/Info

Title:
Preparation of Ceramic Materials Used for Selective Laser Sintering and Related Forming Methods
作者:
吴甲民陈安南刘梦月刘凯程立金史玉升李晨辉朱小刚王联凤
1华中科技大学材料科学与工程学院,材料成形与模具技术国家重点实验室 湖北 武汉 430074
2深圳华中科技大学研究院 广东 深圳 518057
3武汉理工大学材料科学与工程学院 湖北 武汉 430070
4上海航天设备制造总厂 上海 200245)
Author(s):
WU Jia-Min CHEN An-Nan LIU Meng-Yue LIU Kai CHENG Li-Jin SHI Yu-Sheng LI Chen-Hui ZHU Xiao-Gang WANG Lian-Feng
1 State Key Laboratory of Material Processing and Die & Mould Technology, School of Material Science and Engineering, Huazhong University of Science and Technology
2 Research Institute of Huazhong University of Science and Technology in Shenzhen,
3 School of Material Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
4 Shanghai Aerospace Equipment Manufacturer, Shanghai 200245, China
关键词:
3D打印陶瓷材料激光选区烧结冷等静压多孔陶瓷致密陶瓷
Keywords:
3D printing Ceramic materials Selective laser sintering Cold isostatic pressing Porous ceramics Dense ceramics
DOI:
10.7502/j.issn.1674-3962.2017.07.11
文献标志码:
A
摘要:
相对于传统技术,3D打印技术在直接成型复杂形状金属和高分子零部件方面显示出了巨大的优越性。然而,3D打印技术在陶瓷零部件的成型方面尚存在诸多难题。为此,华中科技大学史玉升教授团队在3D打印陶瓷材料的制备及其成型技术方面做了较多研究。本文详细介绍了激光选区烧结(SLS)技术中复合粉体的两种主要制备方法:一种是通过机械混合法将陶瓷粉体与高分子聚合物机械混合制得SLS成型用复合粉体;另一种是通过溶解沉淀法或溶剂蒸发法将高分子聚合物包覆在陶瓷颗粒表面制得复合粉体。研究表明,采用上述两种制粉方法均可制备出具有良好流动性的适于3D打印的复合陶瓷粉体。本文还系统地讨论了SLS素坯的成型机理以及预热温度、激光功率和单层厚度等SLS工艺参数对陶瓷素坯的力学性能和成型精度的影响。在此基础上,采用最佳SLS工艺参数制备出传统成型工艺难以成型的具有三维孔洞结构的多孔堇青石和高岭土陶瓷零部件。此外,结合SLS工艺与冷等静压(CIP)技术提出了SLS/CIP复合成型技术,提高了SLS成型陶瓷的致密度和力学性能,制备出高性能、复杂结构的Al2O3、ZrO2、SiC等致密陶瓷零部件,为采用3D打印技术制备航空航天、国防等领域用高性能陶瓷零部件打下了良好的基础。
Abstract:
Compared with traditional technologies, 3D printing technology has shown great advantages in direct formation of metal and polymer parts with complex shapes. However, there are many problems in the preparation of ceramic parts via 3D printing. In this respect, lots of researches have been done by Prof. Shi Yu-Sheng’s group in Huazhong University of Science and Technology on the preparation of different ceramic materials used for 3D printing technology and related forming methods. In this review, two main methods to prepare composite powders used in Selective Laser Sintering (SLS) were detailed introduced: (1) mechanical mixing method, by which ceramic powders and polymer were directly mixed; (2) dissolution-precipitation process or solvent evaporation method, by which the ceramic powders were coated with polymer. The results showed that both two preparation methods mentioned above were suitable to prepare ceramic-polymer composite powders with good fluidity for 3D printing technology. Furthermore, the forming mechanisms of SLS and the effects of SLS process parameters, including preheating temperature, laser power, layer thickness and so on, on mechanical properties and manufacturing accuracy of ceramic green parts were systematically discussed. On the basis of above results, porous cordierite and kaolin ceramics with three dimensional pore structures, which were difficult to be fabricated by the conventional forming technologies, were manufactured by SLS technology with optimized process parameters. In addition, to improve the density and mechanical properties of SLSed ceramic parts, a hybrid technology named SLS/Cold Isostatic Pressing (CIP) was proposed by introducing the CIP technology into the field of SLS, and dense Al2O3, ZrO2 and SiC ceramic parts with high performance and complex structure were prepared through this hybrid technology. The results indicated that SLS and SLS/CIP technologies could be the promising routes to prepare high-performance ceramic components used in the fields of aerospace, national defense, etc.
 
更新日期/Last Update: 2017-07-05