Process for producing zirconia yttria grinding media used for gr

Details Process for producing zirconia yttria grinding media used for gr Process for producing zirconia yttria grinding media used for gr

1983-05-18

1984-02-07

McCarthy, Helen M.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

241184, 264 63, 264 66, 264325, 264DIG25, 360135, 360137, 501103, C04B 3548

Patent

active

044302797

ABSTRACT:
This invention discloses zirconia-containing grinding media in the preparation of magnetic disc coating and method for producing such grinding media. The grinding media essentially consists of zirconia-sintered body containing 3.6% to 8.0% by weight of yttrium oxide, the zirconia sintered body having a means grain size of less than 2 .mu.m and the relative theoretical density of more than 98.0%.

REFERENCES:
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patent: 3432314 (1969-03-01), Mazdiyashni et al.
patent: 3929498 (1975-12-01), Hancock et al.
patent: 4041123 (1977-08-01), Lange et al.
patent: 4316964 (1982-02-01), Lange
patent: 4344904 (1982-08-01), Yamada et al.
patent: 4360598 (1982-11-01), Otagiri et al.
patent: 4383957 (1983-05-01), Yamakawa et al.
Rieth, P. H. et al., Fabrication and Flexural Strength of Ultrafine Grained Yttria-Stabilized Zirconia, Cer. Bull. 55(8) Aug. 1976, pp. 717-721 and 727.

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