Inert autogenous attrition grinding

Abrasive tool making process – material – or composition – Miscellaneous

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51307, 51308, 51309, B24D 300

Patent

active

049321668

ABSTRACT:
A method for grinding an oxygen sensitive ceramic material to a powder which comprises grinding an oxygen sensitive ceramic feed material having an average particle size of between 1 and 200 microns in a contamination free high energy autogenous attrition mill in non-oxidizing fluid in the presence of media for a sufficient time to obtain a specific surface area of at least 5 m.sup.2 /g and preferably at least 9 m.sup.2 /g. The media consists essentially of the same ceramic as the feed material is of high purity and has an average particle size of less than 4 mm and preferably less than 2.5 mm. the ground material may be further treated so that the average particle size is less than one micron and so that the greater than 97 numerical percent of the particles of the finished powder is smaller than 5 microns. The invention includes the finished powder.

REFERENCES:
patent: 3075710 (1963-01-01), Feld et al.
patent: 3231203 (1966-01-01), Hardinge et al.
patent: 3268177 (1966-08-01), McKibben
patent: 3311310 (1967-03-01), Engels et al.
patent: 3485608 (1969-12-01), Cecil
patent: 3521825 (1970-07-01), Morcom
patent: 3715083 (1973-02-01), Funk
patent: 3957210 (1976-05-01), Durr
patent: 4123286 (1978-10-01), Coppola et al.
patent: 4129261 (1978-12-01), Engels et al.
patent: 4242842 (1981-01-01), Yancey
patent: 4275026 (1981-06-01), Hazel et al.
patent: 4544376 (1985-10-01), Duran
patent: 4575384 (1986-03-01), Licht et al.
Bulletin 670 of the U.S. Dept. of Interior, "communication by the Attrition Grinding Process", Stanczyk et al., U.S. Govt. Printing Office 1981-332-076.
"Disintegration of Particulate Solids by Wet Grinding", H. Durr, 1978, Draiswerke Product Bulletin.
"Multi-Media Mills", Jaygo, Inc. Product Bulletin, date unknown.
"Perl Mill", Draiswerke Product Bulletin, date unknown.
"Drais Special-Purpose Process Machines", Draiswerke Product Bulletin, date unknown.
"Production of Submicron Silicon Carbide Powders by Attrition Milling", Stanley, et al., Reprint from Fine Particles-Second International Conference, Data Unknown.
S. Prochazka, General Electric Technical Information Series 86CRD158, Aug. 1986.

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