Media agitating mill and method for milling ceramic powder

Details Media agitating mill and method for milling ceramic powder Media agitating mill and method for milling ceramic powder

1989-07-18

1991-11-19

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 21, 241172, 241184, B02C 1912

Patent

active

050659464

ABSTRACT:
A method for milling ceramic powder and making a sintered body from the powder produced by such method are disclosed. A preferred embodiment includes wet-milling at least one ceramic powder by a media agitating mill wherein the volume of liquid is not more than 4 times the net-volume of the ceramic powder, a dispersing agent is added and milling is carried out using grinding media of not larger than 1 mm in diameter. A media agitating mill used for the above method is provided which includes a milling chamber, grinding media and an agitator wherein the peripheral speed of the agitator is at least 10 m/s, the grinding media having a diameter of not larger than 1 mm and the packing fraction of the grinding media is 65-85% by volume.

REFERENCES:
patent: 3311310 (1967-03-01), Engels et al.
patent: 3337140 (1967-08-01), Wahl
patent: 3682399 (1972-08-01), Kaspar et al.
patent: 3927837 (1975-12-01), Clark
patent: 4513917 (1985-04-01), Szkaradek
patent: 4915307 (1990-04-01), Klimaschka et al.
"Zairyo (materials)", Tanaka et al., vol. 35, pp. 54-58.
"Powder-Theory and Application", revised second edition, published 1979 by Maruzen Co., Ltd., Japan.

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