Method of manufacturing single crystals

Details Method of manufacturing single crystals Method of manufacturing single crystals

1981-09-15

1983-04-05

Bernstein, Hiram H.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156DIG74, C30B 1108

Patent

active

043790216

ABSTRACT:
A method of manufacturing a single crystal of a composite oxide by gradual solidification of a melt with solidification starting from a seed crystal which initially is in contact with the melt, is provided wherein to obtain a single crystal having a composition which is as homogeneous as possible (homogeneous within 1 mol. %) the following measures are taken: first, initially the melt consists of no more than 25% by weight of the single crystal to be grown; and second, during the solidification process molten material is added to the melt at the same rate and having the same composition as material solidifies out from the melt.

REFERENCES:
patent: 2361382 (1944-10-01), Camin
patent: 2905989 (1959-09-01), Black
patent: 3060065 (1962-10-01), Orem
patent: 3434892 (1969-03-01), Heimke
patent: 4312700 (1982-01-01), Helmreich et al.
Sugimoto, "Magnetic Single Crystals", published in book Crystals, Springer-VerLag Press, N.Y., Jan. 1978, pp. 125-139.

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