Process for producing ceramic powders and products resulting the

Details Process for producing ceramic powders and products resulting the Process for producing ceramic powders and products resulting the

1977-01-17

1980-06-03

McCarthy, Helen M.

Abrasive tool making process, material, or composition

With inorganic material

Metal or metal oxide

106 43, 106 57, 106 65, 106 732, 106 734, 241 27, 423252, 423625, B02C 1912

Patent

active

042059640

ABSTRACT:
A process and products produced thereby, e.g., alumina tools, in which ceramic powder particles are subjected to high transmissive energy milling under dry conditions and with given ratios of impacting media to powder, the milling being conducted for a period beyond the threshold point of the powder constituents, whereby dense, composite powder particles are obtained having an interdispersion of initial constituent particles, a large internal interfacial surface within individual product powder particles, etc.

REFERENCES:
patent: 3367766 (1968-02-01), Barrington et al.
patent: 3591362 (1971-07-01), Benjamin
patent: 3670970 (1972-06-01), Szegvari
patent: 3738828 (1973-06-01), Inoue
patent: 3801688 (1974-04-01), McGee
patent: 3830435 (1974-08-01), Hill
Pryde, R. B. et al., "The Effect of Comminution on the Sinterability of Alumina & Tungsten Carbide Powders"-7th Pwansee Seminar, Jun. 1971, pp. 3-13.
Naeser, G., "Mechanical Activation of Solid Materials & its Technological Significance"-Int'N J. of Powder Metallurgy, 1970, 6 (2), pp. 3-11.
Gitzen, W. H. (ed.)-Alumina as a Ceramic Material, 1970, pub. Am. Cer. Soc.-Chapter 14, "Grinding Ceramic Alumina", pp. 117-119.

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