| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a tool material for firing which is constituted so as to have a coating layer provided on a part or the whole of the surface of a base material and in which the wear and the stripping of a coating layer are decreased by strengthening the bond of the base material with the coating layer and increasing the hardenss of the coaring layer itself. <P>SOLUTION: The tool material for firing is constituted so that the coating layer containing ≥80 wt.% in total of one or more kinds of Al<SB>2</SB>O<SB>3</SB>, MgO and ZrO<SB>2</SB>as essential components and 0.5-10.0 wt.% in total of one or more kinds selected from Fe<SB>2</SB>O<SB>3</SB>, TiO<SB>2</SB>, BaO, SrO and CaO and MgO which are different one used as a stabilizer for ZrO<SB>2</SB>, (where the same kind of the component used as the essential component of the coating layer is extruded), as additive components is applied on a part of or the whole surface of the base material containing ≥70 wt.% in total of one or more kins fo Al<SB>2</SB>O<SB>3</SB>, MgO and ZrO<SB>2</SB>. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
