Title:
SOL-GEL COATED SPHERICAL PARTICLE
Document Type and Number:
Japanese Patent JP2607031
Kind Code:
B2
Abstract:
PURPOSE: To provide powder by a relatively simple process in which the powder has a relatively narrow size distribution and a substantially uniform particle size and can form films by sintering at a low sintering temp. to avoid cracking.
CONSTITUTION: The process is constituted by coating small particles of well-defined crystalline phases with a polymerized gel. By the process, a sol-gel type coating is formed on the particles to provide particles which have a narrow size distribution. In many instances, crystalline particles of irregular shape have a substantially spherical shape upon coating with the sol-gel. In instances where the core is a high melting point material, such as oxide, nitride or carbide, a low sintering temp. can become possible, which permits forming films of the particles at a much lower temp. than would otherwise.
Inventors:
Chan Es Bak
Hiroshi Kimura
Ricardo Sea Pasto
Hiroshi Kimura
Ricardo Sea Pasto
Application Number:
JP15285393A
Publication Date:
May 07, 1997
Filing Date:
May 31, 1993
Export Citation:
Assignee:
HI Holdings Inc. DBA Hughes Electronics
International Classes:
B01J13/04; B01J2/00; B01J2/08; B01J13/02; B22F1/065; C01B13/32; C04B35/628; C04B41/45; C04B41/52; C04B41/81; C04B41/89; H01B3/10; (IPC1-7): B01J13/02; B01J13/04; C01B13/32
Domestic Patent References:
| JP60215569A | ||||
| JP3186343A | ||||
| JP4131133A |
Other References:
【文献】日本化学会誌 1987[10]落合、堀江、森田P.1785~1790
【文献】J.Am.Ceram.Soc.68[2](1985)(米)P.C-60~C-62
【文献】J.Am.Ceram.Soc.68[2](1985)(米)P.C-60~C-62
Attorney, Agent or Firm:
Takehiko Suzue
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