| 摘要 |
959,673. Electrode materials. TEXAS INSTRUMENTS Inc. Aug. 4, 1960 [Sept. 10, 1959], No. 27133/60. Drawings to Specification. Heading H1D. [Also in Divisions B3 and E1] A five-layered composite material, for use as the anode of an amplifier tube, comprises a layer of high thermal and electrical conductivity, e.g. OFHC copper, sandwiched between two layers of steel, these three layers being sandwiched between two layers of aluminium. The middle layer preferably has a thickness of less than 40% ahd at least 16% of the thickness, e.g. 0.005 inch, of the composite material. The layers may be adhered or bonded together by the methods described in Specification 745,426. The aluminium layers may contain 1 to 1¢% silicon, and the steel preferably contains no more than 0.08% carbon. Specific examples of such composite materials are given. An anode of such a material is said to have a low temperature differential between its hot and cool portions with good thermal radiation, or a low gas evolution. |
