Title:
改良された微細構造を有するアルミナ-ジルコニア-シリカをベースとした熔融注型製品
Document Type and Number:
Japanese Patent JP4275867
Kind Code:
B2
Abstract:
Oxidized alumina-zirconia-silica (AZS) refractories containing 40 wt % to 55 wt % Al2O3, 32 wt % to 45 wt % ZrO2, 10 wt % to less than 16 wt % SiO2 and 1 wt % to 3 wt % of an alkali metal oxide selected from Na2O, K2O and mixtures thereof have a microstructure essentially comprising alpha-alumina crystals, free zirconia crystals, eutectic crystals and an intercrystalline vitreous phase. At least in an active area, more than 20% by number of the free zirconia crystals have a dendritic shape and are interleaved with each other and with eutectic crystals and at least 40% by number of the dendritic free zirconia crystals have a dimension greater than 300 mum.
Inventors:
Goville Michelle Marco
Bezan Le Eve Michelle Leon
Sultan Emanuel Jean-Marie
Zanori Alan Paul Bernard
Bezan Le Eve Michelle Leon
Sultan Emanuel Jean-Marie
Zanori Alan Paul Bernard
Application Number:
JP2001022136A
Publication Date:
June 10, 2009
Filing Date:
January 30, 2001
Export Citation:
Assignee:
Societe Europené de Produy Refractère
International Classes:
C04B35/657; C04B35/109; C04B35/484
Domestic Patent References:
| JP62246870A | ||||
| JP11343174A |
Attorney, Agent or Firm:
Yoshiteru Oshida