Abstract:
The invention relates to a method for the economic production of a blank for a component made from laser-active quartz glass in any form or dimension. The method comprises the following method steps: a) preparation of a dispersion with a solids content of at least 40 wt. %, comprising Si02 nanopowder and doping agents, including a cation of the rare earth metals and transition metals in a fluid, b) granulation by agitation of the dispersion, with removal of moisture to form a doped Si02 granulate of spherical porous granular particles with a moisture content of less than 35 wt. % and a density of at least 0.95 g/cm3, c) drying and purification of the Si02 granulate, by heating to a temperature of at least 1000 °C to form doped porous Si02 grains with an OH content of less than 10 ppm and d) sintering or fusing the doped SiO2 grains in a reducing atmosphere to give the blank made from doped quartz glass.
Abstract:
La présente invention concerne un guide optique (100) comportant un milieu amplificateur comprenant :
un coeur (10) en une matrice principale d'un matériau transparent, la matrice principale contenant des particules (1, 2), chaque particule étant formée d'une matrice submicronique distincte de la matrice principale et dopée par un élément actif métallique, une gaine guidante externe (11) en contact avec le coeur (10). La taille des particules (1, 2) est inférieure à 20 nm. La présente invention concerne aussi un procédé de fabrication d'un tel guide.
Abstract:
PROBLEM TO BE SOLVED: To provide a quartz glass having a high purity and exhibiting enhanced durability while keeping good processability and machinability, and reduced dusting property as a member of a semiconductor production apparatus or a liquid crystal display production apparatus using a halide gas and/or its plasma; and to provide a device equipped with such excellent quartz glass. SOLUTION: The highly durable quartz glass is characterized by containing aluminum and at least one element (M) selected from the group consisting of group 2A elements, group 3A elements and group 4A elements of the periodic table. A method for manufacturing the quartz glass, and the quartz glass member and the device using the quartz glass are also provided. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
본 발명은 도핑 석영 부품을 제조하기 위한 방법이 제공된다. 일 실시예에서, 도핑 석영 부품은 기판을 지지하도록 구성된 이트륨 도핑 석영 링이다. 또 다른 실시예에서, 도핑 석영 부품은 이트륨 및 알루미늄 도핑 커버 링이다. 또 다른 실시예에서, 도핑 석영 부품은 이트륨, 알루미늄 및 질소 함유 커버 링이다.