Patent ID: 6156238
Filing Date: 2000-12-05
Classification: C04B

Abstract:
A liquid phase-sintered, electrically conducting and oxidation-resistant ceramic material having the composition:[Si.sub.3 N.sub.4 ].sub.1-a-b.[SiC].sub.a.[TiN].sub.bwherein a=0.1 to 1, b=0.05 to 0.5 and (a+b).gtoreq.0.4, and additionally sintering aids from the group consisting of Y.sub.2 O.sub.3, rare earth oxides, Al.sub.2 O.sub.3, Sc.sub.2 O.sub.3, TiO.sub.2 and ZrO.sub.2, having a specific electrical conductivity at room temperature of .gtoreq.0.1 S/m and an oxidation-resistance characterized by a weight increase of .ltoreq.0.05 mg/cm.sup.2 after exposure to air for 100 hours at 1000.degree. C.