Method for degreasing ceramic molded body and method for manufacturing ceramic sintered body
A technology for shaped bodies and ceramics, applied in the direction of ceramic products, ceramic layered products, chemical instruments and methods, etc., can solve the problems of not being able to obtain the target physical properties, and achieve the effect of reliable degreasing and preventing oxidation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
experiment example 1
[0045] 1. Production of ceramic molded body (molding process)
[0046] First, a ceramic slurry containing ceramic powder, a dispersion medium, a gelling agent (isocyanates, polyols, a dispersion aid, and a catalyst) is prepared. Specifically, 100 parts by mass of aluminum nitride powder as ceramic powder, 30 parts by mass of a mixture of aliphatic polybasic ester and polybasic acid ester as a dispersion medium, 4'4-diphenyl 5.3 parts by mass of methane diisocyanate, 0.3 parts by mass of ethylene glycol as a polyol, 3 parts by mass of a polycarboxylic acid copolymer as a dispersion aid, and 0.05 parts by mass of 6-dimethylamino-1-hexanol as a catalyst parts were mixed to prepare a ceramic slurry.
[0047] Next, if Figure 4 As shown in (a), from the internal space 32 (slurry storage part) with length 50×width 50×height 10mm, a length 30×width 30×thickness 1mm is provided at the center of the surface (bottom surface) with length 50×width 50mm The prepared ceramic slurry is po...
experiment example 2
[0053] In Experimental Example 2, heat treatment was performed in the same manner as in Experimental Example 1, except that the maximum temperature was changed to 1400° C. when heat-treating the Ni flat-plate embedded compact 52 obtained in Experimental Example 1. The processing time is more than 14 hours. The residual carbon content of the Ni flat plate embedded molded body 54 after the heat treatment was 0.03% by mass, and the total oxygen content was 1.9% by mass. From this result, it can be seen that the degreasing was sufficiently performed and the aluminum nitride was hardly oxidized. As a result of visual observation of the appearance of the heat-treated Ni plate embedding molded body 54 , no cracks were observed. In addition, no oxide film was formed on the surface of the Ni flat plate 42 .
experiment example 3
[0055] In Experimental Example 3, when heat-treating the Ni flat-plate embedded molded body 52 obtained in Experimental Example 1, the atmosphere was changed to a mixed atmosphere of 20% by volume of hydrogen and 80% by volume of nitrogen, and the maximum temperature was changed to 1400°C. Other than that, heat treatment was performed in the same manner as in Experimental Example 1. The processing time is more than 14 hours. The residual carbon content of the Ni flat plate embedded molded body 54 after heat treatment was 0.05% by mass, and the total oxygen content was 1.9% by mass. From this result, it can be seen that the degreasing was sufficiently performed and the aluminum nitride was hardly oxidized. As a result of visual observation of the appearance of the heat-treated Ni plate embedding molded body 54 , no cracks were observed. In addition, no oxide film was formed on the surface of the Ni flat plate 42 .
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More