Shape Defined By A Solid Member Other Than Seed Or Product (e.g., Edge-defined Film-fed Growth, Stepanov Method) Patents (Class 117/16)
  • Rutile single crystals and their growth processes
    Patent number: 5431124
    Abstract: A rutile single crystal with no grain boundaries of large inclination is obtained by an EFG crystal growth process wherein a die provided with slits is incorporated in a feed melt 2 to deliver up the melt through the slits until it reaches the upper face of the die, thereby obtaining a single crystal conforming in configuration to the die by pulling growth.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: July 11, 1995
    Assignee: Chichibu Cement Co., Ltd.
    Inventors: Hiroshi Machida, Tsuguo Fukuda, Keigo Hoshikawa