Sintering of oxide and carbide ceramics by electron beam at forevacuum pressure

International Conference on Advanced Materials and New Technologies in Modern Materials Science 2015

Dvilis, E.^1 ; Tolkachev, O.^1 ; Burdovitsin, V.^2 ; Khasanov, A.^1 ; Petyukevich, M.^1

Department of Nanomaterials and Nanotechnologies, National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk

634050, Russia^1

Tomsk University of Control Systems and Radioelectronics, 40 Lenin Ave., Tomsk

634050, Russia^2

关键词: Carbide ceramics;    Dry powders;    Green compacts;    Plasma cathode;    Powder compactions;    Silicon carbide ceramic;    Submicron;    YSZ ceramics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/116/1/012029/pdf
DOI  :  10.1088/1757-899X/116/1/012029

来源: IOP

【 摘 要 】

Novel approaches for electron beam sintering of zirconia and silicon carbide ceramics have been investigated: application of forevacuum pressure plasma-cathode to compensate the charge induced by the electron beam on the green compact surface, and previous dry powder compaction under powerful ultrasound assistance. Dense YSZ ceramics with submicron and micron grains have been consolidated by electron beam sintering after powder compaction using ultrasound.