Media agitating mill and method for milling ceramic powder
US5065946A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1989 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Jul 18, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/776
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.