4873071 Graphite structures and method for production thereof

✍ Scribed by Yasuhiro Yamada; Takeshi Imamura; Hidemasa Honda; Masaki Fujii; Masanori Minohata

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 68 KB
• Volume: 28
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(90)90035-w

✦ Synopsis

New Patents bodies made therefrom which are particularly resistant to slag and metal erosion and to thermal shock. This is achieved by combining grains or powders of SiAlON and/or silicon nitride with elemental carbon in the form of graphite, carbon black or charcoal. The particulate materials are mixed with a carbonaceous binder such as resin or pitch, pressed to shape and fired in a reducing atmosphere. Small amounts of antioxidants are also added to protect the carbon bond phase against slag attack. Additional amounts of a less expensive refractory grain or powder are also optionally added to the mix to dilute the more expensive SiAlON and/or silicon nitride.