Claims
- 1. A gradient function material produced by cast molding and thereafter firing a slurry which contains at least a first group of particles and a second group of particles, wherein said particles in said first group have a specific gravity which is less than the specific gravity of particles in said second group of particles, characterized in that:
- the gradient function material has a first region disposed between ends thereof in a casting direction and occupied mostly by particles from said second group of particles, and a composition of said gradient function material varies continuously such that the proportion of particles from said first group of particles increases progressively from said first region toward both of the ends in the casting direction; and
- said composition of said gradient function material continuously varies in said casting direction in a substantially superposed corrugated pattern.
- 2. A gradient function material produced by cast molding and thereafter firing a slurry which contains at least a first group of particles and a second group of particles, wherein said particles in said first group have a specific gravity which is less than the specific gravity of particles in said second group of particles, characterized in that:
- the gradient function material has a first region disposed between ends thereof in a casting direction and occupied mostly by particles from said second group of particles, and a composition of said gradient function material varies continuously such that the proportion of particles from said first group of particles increases progressively from said first region toward both of the ends in the casting direction; and
- a distribution of said composition of said gradient function material is based upon an extent of deflocculation of said first group of particles relative to said second group of particles.
- 3. A gradient function material produced by cast molding and thereafter firing a slurry which contains at least a first group of particles and a second group of particles, wherein said particles in said first group have a specific gravity which is less than the specific gravity of particles in said second group of particles, characterized in that:
- the gradient function material has a first region disposed between ends thereof in a casting direction and occupied mostly by particles from said second group of particles, and a composition of said gradient function material varies continuously such that the proportion of particles from said first group of particles increases progressively from said first region toward both of the ends in the casting direction; and
- a distribution of said composition of said gradient function material is based upon an extent of deflocculation of said first group of particles relative to an extent of deflocculation of said second group of particles, and upon a specific gravity of particles in said first group relative to particles in said second group.
- 4. A gradient function material wherein, comprising:
- a first group of particles;
- a second group of particles wherein said particles in said first group have a specific gravity which is less than the specific gravity of said particles in said second group;
- said gradient function material has a first region disposed between ends thereof in a casting direction and occupied mostly by particles from said second group of particles;
- a distribution of particles from said first and second groups of particles in said gradient function material varies continuously such that the proportion of particles from said first group of particles increases progressively from said first region toward at least one end of said gradient function material in the casting direction;
- said gradient function material is produced by cast molding and thereafter firing a slurry containing said first group of particles and said second group of particles; and
- a distribution of said composition of said gradient function material is based upon an extent of deflocculation of said first group of particles relative to said second group of particles.
- 5. A gradient function material, comprising:
- a first group of particles;
- a second group of particles, wherein said particles in said first group have a specific gravity which is less than the specific gravity of said particles in said second group;
- said gradient function material has a first region disposed between upper and lower ends thereof in a transverse direction and occupied mostly by particles from said second group of particles;
- a distribution of particles from said first and said second group of particles in said gradient function material varies continuously such that the proportion of particles from said first group of particles increases progressively from said first region toward at least one end of said gradient function material in the transverse direction; and
- wherein said gradient function material is produced by cast molding and thereafter firing a slurry containing said first group of particles, and said second group of particles; and
- a distribution of said composition of said gradient function material is based upon an extent of deflocculation of said first group of particles relative to an extent of deflocculation of said second group of particles, and upon a specific gravity of particles in said first group relative to particles in said second group.
- 6. A gradient function material, comprising:
- a first group of particles;
- a second group of particles wherein said particles in said first group have a specific gravity which is less than the specific gravity of said particles in said second group;
- said gradient function material has a first region disposed between ends thereof in a casting direction and occupied mostly by particles from said second group of particles;
- a distribution of particles from said first and second groups of particles in said gradient function material varies continuously such that the proportion of particles from said first group of particles increases progressively from said first region toward at least one end of said gradient function material in the casting direction;
- said gradient function material is produced by cast molding and thereafter firing a slurry containing said first group of particles and said second group of particles; and
- said composition of said gradient function material has a substantially superposed, corrugated pattern in the casting direction.
Priority Claims (3)
Number |
Date |
Country |
Kind |
4-279331 |
Sep 1992 |
JPX |
|
5-55991 |
Mar 1993 |
JPX |
|
5-214409 |
Aug 1993 |
JPX |
|
Parent Case Info
This is a divisional of application Ser. No. 08/246,134 filed May 19, 1994, now U.S. Pat. No. 5,653,924 which is a continuation of PCT Application Serial No. PCT/JP93/01367 filed Sep. 24, 1993 (now abandoned).
US Referenced Citations (18)
Divisions (1)
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Number |
Date |
Country |
Parent |
246,134 |
May 1994 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
PCT/JP93/01367 |
Sep 1993 |
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