| 摘要 |
PROBLEM TO BE SOLVED: To easily produce ceramic sintered bodies of a desired shape without using a carbide tool by cutting a green sheet or block for sintering to a prescribed shape, putting a releasing agent on each cut cross section, carrying out recombination to the original sheet or block shape and pressure sintering and separating the resultant sintered bodies along the each cut cross section. SOLUTION: A green sheet 1 having plasticity is cut with a cutting tool 2 to form plural strip-shaped chips 3. A releasing agent sheet 4 (hexagonal boron nitride or graphite) is put on each cut cross section of the chips 3 and the chips 3 are recombined to the original sheet shape. Plural green sheets 1, 1', 1'' including releasing agent sheets 4 are piled up while interposing releasing agent sheets 5 to form a green sheet unit 6 and this unit 6 is packed into a hot press and pressure-sintered. Since re-bonding is prevented by the releasing agent sheets 4, 5, the objective ceramic sintered bodies of the desired shape are easily obtd. |
