FIELD: refractory materials.
SUBSTANCE: materials contain: 40-55% Al2O3, 32-45% ZrO2, 10- <16% SiO2, and 1-3% alkali metal oxide selected from Na2O, K2O, and mixture thereof with microstructure including α-silica crystals, free zirconia crystals, eutectic crystals, and intercrystalline vitreous phase, at least 20% of free zirconia crystals in working zone of material having dendrite morphology. Indicated crystals accrete with each other and with eutectic crystals. At least 40% of dendrite free zirconia crystals are more than 300 microns in size.
EFFECT: increased resistance to corrosion without significant increase in zirconium content.
6 cl, 5 dwg, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| LOW COST MELT AND CAST MATERIALS ON BASE OF ALUMINA-ZIRCONIUM-SILICA AND METHOD FOR USING THEM | 2001 |
|
RU2280019C2 |
| ALUMINIUM-ZIRCONIUM-SILICON PRODUCT WITH LOW EXUDATION | 2005 |
|
RU2386602C2 |
| FUSED MOULDED REFRACTORY MATERIAL WITH HIGH ZIRCONIUM DIOXIDE CONTENT | 2003 |
|
RU2324670C2 |
| FUSED MOULDED REFRACTORY MATERIAL BASED ON ALUMINIUM OXIDE, ZIRCONIUM DIOXIDE AND SILICON DIOXIDE AND USE OF SAID MATERIAL | 2013 |
|
RU2584189C1 |
| METHOD OF FORMING REPAIR REFRACTORY COMPOUND AND POWDER MIX FOR CARRYING IT TROUGH | 1997 |
|
RU2173308C2 |
| REFRACTORY MATERIAL | 1990 |
|
RU2069651C1 |
| DOPED SINTERED ARTICLE BASED ON ZIRCON AND ZIRCONIUM DIOXIDE | 2007 |
|
RU2456254C2 |
| REFRACTORY ARTICLE CAST FROM MELT | 2008 |
|
RU2440953C2 |
| FUSED CAST HIGH-ZIRCONIUM REFRACTORY MATERIAL | 1993 |
|
RU2039026C1 |
| METHOD OF HOT REPAIR OF LINING OR MANUFACTURE OF REFRACTORY PRODUCTS AND POWDER MIX | 1990 |
|
RU2040512C1 |
