基于显微CT技术的陶瓷粉末颗粒及内部孔隙三维可视化研究  

3D Visualization of Ceramic Powder Particles and Internal Pore with Micro-CT Technology

作　　者：崔凯歌 高鸿波[1] 谢永敏 邬冠华[1] 张士晶[1] 王树鹏 CUI Kaige;GAO Hongbo;XIE Yongmin;WU Guanhua;ZHANG Shijing;WANG Shupeng(Key Laboratory of Nondestructive Testing(Ministry of Education),Nanchang Hangkong University,Nanchang 330063,Jiangxi,China;Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;AECC Shenyang Liming Aero-Engine Co.,Ltd.,Shenyang 110043,Liaoning,China)

机构地区：[1]南昌航空大学无损检测技术教育部重点实验室,江西南昌330063 [2]江西理工大学材料冶金化学学部,江西赣州341000 [3]中国航发沈阳黎明航空发动机有限责任公司,辽宁沈阳110043

出　　处：《陶瓷学报》2022年第1期114-120,共7页Journal of Ceramics

基　　金：无损检测技术教育部重点实验室开放基金(EW201908088);南昌航空大学研究生创新专项资金(YC2020-054)。

摘　　要：以YSZ陶瓷粉末为研究对象,通过SEM观察微观形貌,测量其平均粒径为27.8μm。利用显微CT技术对陶瓷粉末及内部孔隙进行了三维可视化成像,定量分析了粒径、球度、比表面积等几何特征参数,结果显示粉末的平均粒径和内部孔隙的孔径分别为20.85μm和4.89μm;平均球形度为0.52和0.59;平均比表面积为0.96μm^(2)·μm^(-3)和5.73μm^(2)·μm^(-3)。由此可见,显微CT技术是一种表征陶瓷粉末颗粒及内部孔隙三维形貌的理想工具,与SEM技术相比更有利于获得代表性的结果。YSZ ceramic powder was used as the objection this study.According to SEM result,the average particle size was 27.8μm.3D visualization of the ceramic powder particles and internal pores were carried out by using micro-CT technology.Geometric characteristics,sphericity and specific surface area of the powders were quantitatively analyzed.It is shown that the average particle size of the powder and the aperture of the internal pores are 20.85μm and 4.89μm,respectively.The average sphericities are 0.52 and 0.59,while the average specific surface areas are 0.96μm^(2)·μm^(-3) and 5.73μm^(2)·μm^(-3).It is therefore concluded that micro-CT is an ideal tool for characterizing three-dimensional morphology and internal pores of ceramic powder particles.

关 键 词：陶瓷粉末 3D打印 显微CT 平均粒径 球度 比表面积 

分 类 号：TQ174.75[化学工程—陶瓷工业]