CHARGE FOR PREPARING OF POROUS CERAMIC MATERIAL Russian patent published in 1995 - IPC

FIELD: ceramics. SUBSTANCE: charge for preparing of porous material containing aluminium oxide has a powder mixture of silicon carbide and one of oxides from the order: CaO, MgO, MnO, NiO, ZnO at the ratio SiC:MeO = 2: 1 at the following ratio of components, wt.-%: Al₂O₃ 95-99; powder mixture of SiC and one of oxides from the order: CaO, MgO, MnO, NiO, ZnO (at ratio SiC: MeO = 2:1) 1-5. Proposed charge composition provides preparing of porous, strength and thermostable ceramics. Article strength is 25-45%, bending strength is 85-150 MPa, thermal stability is more then 30 heat changes at thermoshocks 1200 C - water. EFFECT: increased strength and thermal stability of material. 1 tbl