The influence of granulated powder temporary organics composition on ceramic structure and properties

International Conference on Mechanical Engineering, Automation and Control Systems 2015

机械制造;无线电电子学;计算机科学

Veselov, S.^1 ; Belousova, N.^1 ; Zamyatina, A.^1 ; Sokolov, I.^1 ; Felofyanova, A.^1

Novosibirsk State Technical University, 20, K. Marks ave., Novosibirsk

630073, Russia^1

关键词: Apparent density;    Ceramic structure;    Granulated powders;    Green densities;    Microstructure and properties;    Sintered ceramics;    Sintered samples;    Uniform distribution;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/124/1/012118/pdf
DOI  :  10.1088/1757-899X/124/1/012118

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The influence of granulated powder binder/plasticizer ratio on epy microstructure and properties of sintered ceramic specimens is shown using submicron alumina. The fracture mode, microstructure and properties analyses of a green part and sintered samples obtained with different organic ratio contained in granulated powder are presented. It was stated that the usage of PVA (grade 16/1) and PEG 400 at an equal ratio results in a uniform distribution of granulated powder in a die and high green density. It is also shown that an addition of 2 wt. % of PVA and 2 wt. % of PEG400 into granules of ceramic press powder allows obtaining A1203ceramic with apparent density of about 3,91 g/cm3and bending strength of up to 410 MPa.