| 摘要 |
<p>[PROBLEMS] To realize excellent durability and peeling. Even when a coating layer is provided on a surface, it is intended to surely prevent peeling of the coating layer. [MEANS FOR SOLVING PROBLEMS] There is provided a tablet making mortar or pestle having tablet making surface layer (5) containing not only a base metal but also a hardened metal different from the base metal wherein the content of hardened metal is increased from the base metal toward the tablet making surface layer (5). The hardened metal contains at least any one of W, C, B, Ti, N and Cr. Further, in the tablet making mortar or pestle, the value Ra (arithmetic average roughness of surface) of the tablet making surface layer (5) is in the range of 0.1 to 5 µm.</p> |
