Abrasive tool making process – material – or composition – With inorganic material – Metal or metal oxide
Patent
1996-02-22
1997-03-11
Jones, Deborah
Abrasive tool making process, material, or composition
With inorganic material
Metal or metal oxide
B24D 334
Patent
active
056096577
ABSTRACT:
The composition for texturing a magnetic disk contains 0.1-5 weight %, based on the composition, of polycrystalline sintered alumina abrasives in a grinding fluid, the abrasives being produced by a sol-gel method comprising the steps of mixing a slurry of alumina hydrate with a dilute acid for solation, mixing the resultant alumina hydrate sol with a seed and/or a modifier, drying said alumina hydrate sol at 50.degree.-120.degree. C. for gelation, pulverizing and classifying the resultant gel, calcinating said gel at 400.degree.-900.degree. C., sintering the calcinated alumina particles at 1100.degree.-1400.degree. C., and pulverizing and classifying the resultant sintered alumina particles to a maximum particle size of 5 .mu.m or less and an average particle size of 0.1-3 .mu.m.
REFERENCES:
patent: 3887524 (1975-06-01), Kirchner et al.
patent: 4047965 (1977-09-01), Karst et al.
patent: 4738885 (1988-04-01), Matsumoto
patent: 4808463 (1989-02-01), Yoshikatsu et al.
Jones Deborah
Showa Denko K.K.
LandOfFree
Composition for texturing magnetic disk does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composition for texturing magnetic disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition for texturing magnetic disk will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-439798