| 摘要 |
<p>In the present invention, there is disclosed a thermal shock-resistant ceramic article including alternating layers of a first material (2) comprising a fusible, particulate ceramic mixtures and a second material (3), typically comprising a porous, hydrolysable material. The layered structure increases the article's work of fracture and toughness, and may lead to improved thermal shock-resistance. The method advantageously uses a sheet, film or sleeve to prepare the article for firing. The composition, thickness, and porosity of the second material (3) will affect the desired properties of the article. The method is particularly suitable for manufacturing cylindrical products such as stopper rods, nozzles, and pouring tubes for the metal casting industry.</p> |
