Claims
- 1. A ceramic monolithic structure having an internal cavity and passageways made by a method comprising the following steps:
- Step 1--forming a layered structure having a surface and a cavity contained therein by stacking individual sheets of a ceramic material having apertures in predetermined said sheets; stacking said individual sheets in a predetermined sequence to form a layered structure having a passageway and a cavity therein; said layered structure formed by said stacking of said individual sheets having a surface and a cavity connected to said surface thereof by said passageway;
- Step 2--filling said cavity and said passageway contained within said layered structure with a supporting media having a melting point greater than a pressing temperature obtained during a subsequent pressing step;
- Step 3--pressing the product from step 2 sufficiently to form a layered structure;
- Step 4--removing said supporting media from said cavity and said passageway of the product of step 3;
- Step 5--sintering the product from step 4 at a temperature sufficient to form a monolithic structure having a surface, said monolithic structure having a cavity contained therein and a passageway connecting the cavity to the said surface of said monolithic structure.
- 2. A transparent ceramic monolithic structure having an internal cavity and passageways made by a method comprising the following steps:
- Step 1--forming a layered structure having a surface and a cavity contained therein by stacking individual sheets of a ceramic material having apertures in predetermined said sheets; stacking said individual sheets in a predetermined sequence to form a layered structure having a passageway and a cavity therein; said layered structure formed by aid stacking of said individual sheets having a surface and a cavity connected to said surface thereof by said passageway;
- Step 2--filling said cavity and said passageway contained within said layered structure with a supporting media having a melting point greater than a pressing temperature obtained during a subsequent pressing step;
- Step 3--pressing the product from step 2 sufficiently to form a layered structure;
- Step 4--removing said supporting media from said cavity and said passageway of the product of step 3;
- Step 5--sintering the product from step 4 at a temperature sufficient to form a monolithic structure having a surface, said monolithic structure having a cavity contained therein and a passageway connecting the cavity to the said surface of said monolithic structure.
- 3. A ceramic domed shaped monolithic structure having an internal cavity and passageways made by a method comprising the following steps:
- Step 1--forming a layered structure having a surface and a cavity contained therein by stacking individual sheets of a ceramic material having apertures in predetermined said sheets; stacking said individual sheets in a predetermined sequence to form a layered structure having a passageway and a cavity therein; said layered structure formed by said stacking of said individual sheets having a surface and a cavity connected to said surface thereof by said passageway;
- Step 2--filling said cavity and said passageway contained within said layered structure with a supporting media having a melting point greater than a pressing temperature obtained during a subsequent pressing step;
- Step 3--pressing the product from step 2 sufficiently to form a layered structure;
- Step 4--removing said supporting media from said cavity and said passageway of the product of step 3;
- Step 5--sintering the product from step 4 at a temperature sufficient to form a monolithic structure having a surface, said monolithic structure having a cavity contained therein and a passageway connecting the cavity to the said surface of said monolithic structure.
Parent Case Info
This is a of co-pending application Ser. No. 925,643 filed On Oct. 31, 1986.
US Referenced Citations (4)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0002209 |
Feb 1979 |
JPX |
1418459 |
Dec 1975 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
925643 |
Oct 1986 |
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