Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1994 | Invention patented by Alexander J. Marker on July 5th, 1994. Abstract: A Cu-doped/Fe-doped low expansion glass ceramic composition comprising: Wt. % ______________________________________ SiO.sub.2 50-65 Al.sub.2 O.sub.3 18-27 P.sub.2 O.sub.5 0-10 Li.sub.2 O 2-6 Na.sub.2 O 0-2 K.sub.2 O 0-2 B.sub.2 O.sub.3 0-1 MgO 0-4 ZnO 0-5 CaO 0-4 BaO 0-5 TiO.sub.2 1-3 ZrO.sub.2 1-3 As.sub.2 O.sub.3 0-1.5 Sb.sub.2 O.sub.3 0-1.5 CuO 0-3 Fe.sub.2 O.sub.3 0-1 ______________________________________ wherein the total amount of SiO.sub.2, Al.sub.2 O.sub.3 and P.sub.2 O.sub.5 is 80-89 wt. %, and said glass ceramic contains as a dopant 0.1-3 wt. % CuO, 0.1-1 wt. % Fe.sub.2 O.sub.3 or a combined CuO+Fe.sub.2 O.sub.3 amount of 0.1-4 wt. %. The glass ceramic composition is suitable for use as a cladding material for solid laser energy storage mediums as well as for use in beam attenuators for measuring laser energy level and beam blocks or beam dumps used for absorbing excess or unused laser energy. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
