Tungsten Alloy Thermionic Emitter in Spacecrafts

Tungsten Alloy Thermionic Emitter Conversion for Space Power Application

Efforts to develop thermionic conversion for space power application are discussed. Tungsten, niobium and Al2O3 were selected as the emitter, collect and insulator materials for the converter. Uranium carbides and uranium oxide were selected as candidates for the nuclear fuel. A total of 36 fueled thermionic converters and fuel elements were life-tested during 1965 to 1972. These tests, supported by a dozen converter tests and several material irradiation tests, provided the base of the in-core thermionic technology.

Tungsten Alloy Thermionic Emitter Pictures

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Tungsten Alloy Thermionic Emitter -01 Tungsten Alloy Thermionic Emitter -02

Unfueled converters demonstrated a life of five years or more, while fueled converter fuel elements have been operated for one to one and one-half years. The major limiting factors for converter life and performance were: component diffusion through cladding and emitter cracking for carbide-fueled converters, and emitter swelling for the oxide-fuel converters. Various means for mitigating the fuel effects on converter life and performance were proposed but they were not thoroughly evaluated.

Tungsten alloy is a suitable material for tungsten alloy thermionic emitter in Spacecrafts. So if you got any enquiry or question about tungsten alloy thermionic emitter, please do not hesitate to contact us at [email protected], [email protected]. Tungsten alloy thermionic emitter price will be offered based on size, density, quantity, hardness, and any other specific requirements.

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