| 摘要 |
PURPOSE:To provide a silicon nitride-based sintered compact excellent in wear resistance and suitable for use as a wear resistant liner, a rolling roll, a guide roll, a welding jig, a cutting tool, etc. CONSTITUTION:This silicon nitride-based sintered compact contains 1-10wt.% one or more kinds of compds. selected from among Al2O3, MgO, SiO2, SrO, CaO, AlN and compds. separately contg. them and 1-10wt.% each (expressed in terms of Nd2O3 and Pr6O11) of Nd and Pr components. |
