Single-crystal – oriented-crystal – and epitaxy growth processes; – Processes of growth from liquid or supercritical state – Having moving solid-liquid-solid region
Patent
1992-10-19
1994-08-09
Breneman, R. Bruce
Single-crystal, oriented-crystal, and epitaxy growth processes;
Processes of growth from liquid or supercritical state
Having moving solid-liquid-solid region
117944, C30B 1304
Patent
active
053363620
ABSTRACT:
It is an object of the present invention to obtain a high quality YB66 crystal by lowering the temperature of the molten zone and growing a crystal by deposition growth under an incongruent condition. A method for preparing a yttrium 66 boride crystal by the floating zone method by use of a YB66 polycrystalline rod. A YB66 crystal having a composition with an atomic ratio B/Y within a range of from 50 to 75, is grown under such conditions that the melt has a composition (an atomic ratio B/Y) different from the raw YB66 polycrystalline rod and the growing YB66 crystal, and that an equilibrium is maintained at the growth interface. When the atomic ratio B/Y of the starting material is within the range of from 50 to 62 and the atomic ratio B/Y of the melt is within the range of from 40 to 62, it is possible to attain the atomic ratio B/Y of the growing crystal within the range of from 50 to 62. When the atomic ratio B/Y of the starting material is within the range of from 62 to 75 and the atomic ratio B/Y of the melt is within the range of from 62 to 93, it is possible to attain the atomic ratio B/Y of the growing crystal within the range of from 62 to 75.
REFERENCES:
"Preparation of Single Crystals of YB.sub.66 "; Tanaka et al., Journal of Crystal Growth 73 (1985) pp. 31-36.
"Growth of High Quality Single Crystals of YB.sub.66 "; Tanaka et al.; Journal of Crystal Growth 99 (1990); pp. 994-997.
Ishizawa Yoshio
Kamimura Yutaka
Otani Shigeki
Tanaka Takaho
Breneman R. Bruce
Garrett Felisa
National Institute for Research in Inorganic Materials
LandOfFree
Method for preparing yttrium 66 boride crystal for soft x-ray mo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for preparing yttrium 66 boride crystal for soft x-ray mo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing yttrium 66 boride crystal for soft x-ray mo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-213844