Title:
【発明の名称】耐熱衝撃性セラミック物品
Document Type and Number:
Japanese Patent JP3497821
Kind Code:
B2
Abstract:
A thermal shock-resistant ceramic article and a method of manufacturing the article include alternating layers of a first material (2) comprising a fusible, particulate ceramic composition and a second material (3), typically comprising a porous, pyrolyzable 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. The method is particularly adapted for manufacturing cylindrical articles, including stopper rods, nozzles, and pouring tubes for the metal casting industry.
Inventors:
Anse, Eric
Application Number:
JP2000540960A
Publication Date:
February 16, 2004
Filing Date:
March 25, 1999
Export Citation:
Assignee:
Vesuvius Crucible Company
International Classes:
B22D41/14; B22D41/18; B22D41/30; B22D41/32; B22D41/52; B22D41/54; B32B18/00; C04B35/00; C04B35/18; C04B35/64; C04B35/66; (IPC1-7): B22D41/32; B22D41/54
Domestic Patent References:
| JP9109327A | ||||
| JP9110540A | ||||
| JP885817A |
Attorney, Agent or Firm:
Takashi Ishida (4 others)