Influence of electron-beam processing mode on the sintering of alumina ceramics

16th International Conference of Students and Young Scientists "Prospects of Fundamental Sciences Development"

自然科学（总论）

Klimov, A.S.^1 ; Bakeev, I.Yu.^1 ; Zenin, A.A.^1

Physics Department, Tomsk State University of Control Systems and Radioelectronics, Tomsk

634050, Russia^1

关键词: Alumina ceramic;    Ceramic surface;    Density distributions;    Electron beam processing;    Focused electron beams;    Plasma electron sources;    Pressure ranges;    Sintered materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/597/1/012070/pdf
DOI  :  10.1088/1757-899X/597/1/012070

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

The article presents the results of electron beam sintering of alumina ceramic in the so-called forevacuum pressure range (5-20 Pa). Ceramic was irradiated by a focused electron beam generated by the forevacuum plasma electron source. Various modes of irradiation are considered without and with scanning of the electron on the ceramic surface. It is shown that using electron beam scanning increases the homogeneity of the sintered material. The modes of irradiation allowing to obtain dense ceramics with a homogeneous density distribution over its volume are given.