The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 01, 1976

Filed:

May. 30, 1974
Applicant:
Inventors:

Jacqueline Faure, Jarrie, FR;

Yves Malmejac, St-Egreve, FR;

Bernard Schaub, Grenoble, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
156603 ; 148-15 ; 148 131 ; 75 6 / ; 75150 ; 75152 ; 75 84 ; 75 6 / ;
Abstract

In a method of growing of single crystals which are practically free from misorientation, namely single crystals of metals which exhibit an allotropic change of state at a temperature below their melting points, single crystals of the raw metal which has undergone unidirectional solidification are heated to a temperature between the allotropic transformation point and the melting point of the metal, the single crystals are maintained during a predetermined period in the vicinity of this temperature and cooled to a temperature below the allotropic transformation point. The single crystals are then annealed in order to obtain complete recrystallization of the metal and finally cooled to room temperature.


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