Abstract: The method provides an X-ray tube rotary anode by increasing the thickness of a thin, highly deformed anode disc to the desired value by deposition of a layer, consisting mainly of molybdenum, by means of thermal spraying. The method provides an X-ray rotary anode which has the attractive properties of a highly deformed anode disc and which also has a large diameter which cannot be obtained by means of the high-speed deformation impact process due to the maximum applicable thickness-diameter ratio.

Abstract: A layer of W or of a W-alloy is provided on a forged supporting member of an X-ray rotary anode by plasma spraying. By carrying out the plasma spraying at reduced pressure, a layer is obtained which is suitable as a target layer for X-ray rotary anodes.

Abstract: The invention relates to anodes for X-ray tubes and a method of producing same. Several layers are deposited one after another onto a substrate by means of chemical vapour deposition. The proposed combination of layers results in a proper bond to the substrate. The combination comprises a first layer of molybdenum or a molybdenum alloy; a second layer of a tungsten-molybdenum alloy and a third layer of tungsten or a tungsten alloy. The composition of the second layer varies over its thickness.

Abstract: A laminated rotary anode for use in an X-ray tube is provided having a structure of a first electron target layer being essentially of a first tungsten alloy, a second intermediate layer bonded to the electron target layer and consisting essentially of either tungsten or a second alloy of tungsten and having a yield point lower than that of the first tungsten alloy, and a support layer bonded at a face of the second layer with the support layer consisting essentially of one of molybdenum and molybdenum alloy.

Abstract: Method of manufacturing laminated rotary anodes for use in x-ray tubes in which in a first step a laminated disc-shaped member is jointed by a single blow to another disc-shaped member, the diameters of the members being increased and their thicknesses decreased. The rotary anode is made from the resulting assembly. The laminated disc-shaped assembly consists at the target area, for example of a tungsten-rhenium alloy and at the other surface of tungsten or an alloy between capable of being shaped than the first mentioned tungsten-rhenium alloy.