Nextel 312 Ceramic Fiber from 3M

M S NEXTELBIZ continuous filament fibers represent a major ad3 vancement in refractory fiber technology. Many unique applications are possible with these metal oxide fibers that are stiff yet flexible, round, dense, smooth, transparent and chemically resistant. These truly continuous fibers can be readily converted into textiles without the aid of other fiber or wire inserts resulting in ceramic texti les which meet tough thermal and electrical performance require. ments. Typical textile products include woven fabrics and tape, braided sleeving and ply twisted yarns and cordage that can withstand temperatures up to 2600°F for extended periods and short term exposure to 3000°F with l i t t le stretching or shrinking. Additionally, the Nextel 31 2 fibers are suitable reinforcing fibers for resin and perhaps ceramic and metal matrix composites particularly where a high temperature resistant reinforcing fiber or fabric is desired. Nextel 312 Ceramic Fibers are currently available commercially. This paper discusses the unique combination of physical, chemical and electrical properties of the fibers and some of the uses for the fibers.