Abrasive tool making process – material – or composition – With inorganic material – Metal or metal oxide
Patent
1988-05-02
1989-11-21
Lieberman, Paul
Abrasive tool making process, material, or composition
With inorganic material
Metal or metal oxide
51293, 51295, B24D 302
Patent
active
048819514
ABSTRACT:
Ceramic abrasive grits comprising alpha alumina and at least about 0.5 percent by weight rare earth metal oxide are prepared by combining alumina hydrate and rare earth metal oxide or its precursors to produce a blend, drying the blend to produce a dried solid, crushing the dried solid to produce grits, calcining the dried grits to substantially remove bound volatile materials, and firing the grits to produce a ceramic material. The rare earth metal is selected from the group consisting of praseodymium, samarium, ytterbium, neodymium, lanthanum, gadolinium, cerium, dysprosium, erbium, and mixtures of one or more rare earth metal.
REFERENCES:
patent: 4142871 (1979-03-01), Zeiringer
patent: 4217113 (1980-08-01), Suh et al.
patent: 4252544 (1981-02-01), Takahashi
patent: 4331627 (1982-05-01), Yamamoto et al.
patent: 4333859 (1982-06-01), Vaughan et al.
patent: 4467767 (1984-07-01), Poon et al.
patent: 4518397 (1985-05-01), Leitheiser et al.
patent: 4543107 (1985-09-01), Rue
patent: 4574003 (1986-03-01), Gerk
Monroe Larry D.
Wood William P.
Francis Richard
Kirn Walter N.
Lieberman Paul
Minnesota Mining and Manufacturing Co.
Sell Donald M.
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