| http://www.w3.org/ns/prov#value | - As four kinds of the oxides is Al2O3/ZrO2/TiO2/SiO2. [0056] As the silicon-containing ceramic support 15, there may be used ones obtained by milling ceramic powder belonging to an oxide ceramic such as silicon carbide powder, silicon nitride powder or an oxide ceramic such as sialon, mullite, cordierite or the like with an organic binder, a lubricant, a plasticizer and water and extrusion-shaping
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