摘要:
Inorganic fiber having the following composition ratio and comprising 40 wt% or less of shots each having a diameter of 45 µm or more: [Composition ratio of inorganic fiber] SiO 2 66 to 82 wt%; CaO 10 to 34 wt%; MgO 0 to 3 wt%; Al 2 O 3 0 to 5 wt%; and the total of SiO 2 , CaO, MgO and Al 2 O 3 is 98 wt% or more.
摘要:
An alkali-metal-doped core optical fiber having high hydrogen resistance and a method for manufacturing such an optical fiber are provided. A method for manufacturing a deuterium-treated optical fiber according to the present invention includes a preform-forming step of forming a silica glass optical fiber preform having a core doped with an alkali metal element, a drawing step of drawing the optical fiber preform to form an optical fiber, and an exposing step of exposing the optical fiber to a deuterium gas atmosphere. Alkali-metal-doped core optical fibers can be manufactured by using this method. In the exposing step, the optical fiber is exposed to an atmosphere containing deuterium gas at a temperature of 20°C or more under conditions where (deuterium gas partial pressure) × (exposure time) is 50 kPa·hour or more.
摘要:
An electrical discharge, suitable for heating optical fibers for processing, is made in a controlled partial vacuum, such that saturation of available ionizable gas molecules is reached. The workpiece temperature is thereby made to be a stably controlled function of the absolute air pressure and is insensitive to other conditions. A system and method accomplishing the foregoing are provided.
摘要:
A method includes a providing a molten glass fiber core and disposing a plurality of nanoparticles that include a transition metal oxide on the molten glass fiber core at or above the softening temperature of the glass fiber core, thereby forming a nanoparticle-laden glass fiber. The plurality of nanoparticles are embedded at the surface of said glass fiber core. A method includes providing a mixture of molten glass and a plurality of nanoparticles. The plurality of nanoparticles include a transition metal. The method further includes forming nanoparticle-laden glass fibers, in which the plurality of nanoparticles are embedded throughout the glass fibers.
摘要:
This invention relates to bioactive sol-gel derived silica fibers, methods for their preparation, an implantable device comprising said fibers and the use of said device for tissue guiding or bone repair.
摘要:
The process and apparatus of the present invention enable the production of glass fiber product from scrap glass fibers. The invention includes: feeding the scrap glass fibers (14) having an average length up to around 12 inches to a glass melting tank (40) having a pool (36) of molten glass, melting the scrap glass fibers (14) without the presence of non-vitrified glass forming materials in an oxidizing environment, conditioning the melt to a formable viscosity, and forming the glass fiber from the conditioned melt where for a given glass fiber product there is a near constant pull of the melted glass from the melter (40). The rate of feeding of the scrap glass to the melter is sufficient to maintain the pool of melted glass with a level within the range of + 0.35 inch (9 mm.) over a period of eight hours. The glass melter (40) has a high length to width ratio with a finite-sided melting containment area which holds a pool of molten glass (36) that receives the scrap glass.
摘要:
For thermally treating waste and/or residual materials, in particular fiber glass, glass silk, glass wool and glass mat coated with organic materials, a drum (1) with embedded elements is used to make the materials circulate. In this drum the materials are heated up to a temperature at least equal to the carbonization and/or evaporation temperature of the coatings but lower than the softening temperature of the materials. The waste or residual materials are preferably increasingly disaggregated in the drum and are heated by a stream of hot gas which flows in the drum from the discharge side (11) to the inlet side (4) and has its highest temperature at the discharge side.