Mica - Cogebi Cogemica Hi-Temp 710-1, 0.13 mm thick. Fiberglass - Hexcel #4522 with F81 Silane Finish, 0.13 mm thick. Fig. 5.2: Coil cross section during reaction. 5.3: Material Buildup. Reaction / Impregnation Material Inner Radius (µm) Outer Radius (µm) Midplanes (µm) Reaction 250 500 250 Fiberglass 125 Fiberglass 125 Mica 125 125 125 Mica 125 125 125 Impregnation 250 500 250 Space for trace 125 125 Fiberglass 125 125 G11 125 Mylar 250 125 Coil Impregnation reaction, coil lead splices are made and the instrumentation trace circuits are installed. The trace circuits consist of stainless steel foil, for the protection heaters and wiring for the voltage taps, glued to a layer of 2 mil polyimide film. A sketch of the layers of material installed for impregnation is shown in Fig. 5.3. The coil is vacuum impregnated with CTD-101k epoxy using a fixture similar to the one used for reaction. The impregnation process varies somewhat between the labs due to facility differences; below are descriptions of the process at each lab. The nominal impregnated coil dimensions are shown in Table 5.4. Materials:
Mica - Cogebi Cogemica Hi-Temp 710-1, 0.13 mm thick. Fiberglass - Hexcel #4522 with F81 Silane Finish, 0.13 mm thick. Fig. 5.2: Coil cross section during reaction. 5.3: Material Buildup. Reaction / Impregnation Material Inner Radius (µm) Outer Radius (µm) Midplanes (µm) Reaction 250 500 250 Fiberglass 125 Fiberglass 125 Mica 125 125 125 Mica 125 125 125 Impregnation 250 500 250 Space for trace 125 125 Fiberglass 125 125 G11 125 Mylar 250 125 Coil Impregnation reaction, coil lead splices are made and the instrumentation trace circuits are installed. The trace circuits consist of stainless steel foil, for the protection heaters and wiring for the voltage taps, glued to a layer of 2 mil polyimide film. A sketch of the layers of material installed for impregnation is shown in Fig. 5.3. The coil is vacuum impregnated with CTD-101k epoxy using a fixture similar to the one used for reaction. The impregnation process varies somewhat between the labs due to facility differences; below are descriptions of the process at each lab. The nominal impregnated coil dimensions are shown in Table 5.4. Materials:
MQXFS1_DesignReport_v14_160414.docx