| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide insulated struts which can raise the reliability of junctions between insulated struts and electrode members and normally functioning for a long time by resolving discharge from screws. <P>SOLUTION: The insulated strut comprises two annular electrode members 2 made of metal which are arranged face to face and have a plurality of penetration holes formed to penetrate each of upper and lower surfaces, a plurality of columnar insulated struts 1 made of ceramics of which the both ends have recesses 4 and are contacted to a main surface facing the two electrode members 2 so that the recesses 4 become coaxial with the penetration holes, cylindrical screw stop members 3 made of metal inserted in the recesses 4 and brazed, and screws stopping the electrode members 2 and the insulated strut 1 by inserting in the penetration holes and the screw stop members 3. The recess 4 has a horizontal cross section shape of circle column and curved bottom with a dimple and a metallized layer 4a is formed on its whole inner surface. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
