Abstract: The invention relates to a method of manufacturing an object (24) by joining a first component (25) and a second component (26). The first component comprises metal powder with a first alloy composition and a first soluble binder, and the second component comprises metal powder with a second alloy composition and a second soluble binder. They may further comprise ceramic powder. At least one of the surfaces to be joined is dissolved before they are brought in contact, or a mixture of metal powder with a third alloy composition and a dissolved third binder is arranged there between. The chemical differences between the first, second, and third alloy compositions are within predetermined limits. The components are sintered or oxidized together whereby it is possible to obtain an object wherein the transitions between the material phases from the joined components are close to inconspicuous when analysed with scanning electron microscopy.

Abstract: The invention relates to a method of manufacturing a component (21) from metal-containing powder. A paste is prepared by mixing at least a powder (11) comprising metal, a binder (12) in an amount of 2 to 8 weight % of the paste (10), and liquid (13), such as water, in an amount of 5 to 25 weight % of the paste (10). The paste is transferred to an extruder (31), and the paste is extruded into a green body (20) by using an extrusion pressure (P) of more than 50 bar. Then the green body (20) is dried and sintered or oxidized to obtain the final component.

Abstract: The invention relates to a method of manufacturing a composite component (21) having a varying electric resistivity along a longitudinal direction of the component. At least a first paste (10a) having a first composition, and at least a second paste (10b) having a second composition are prepared. The pastes are transferred into a supply chamber (35) of a processing equipment (31), such as an extruder. A green body (20) is shaped by forcing the pastes from the supply chamber through a die (32), and the green body is then sintered or oxidized to form the composite component. The pastes may comprise metal powder, ceramic powder, and binder. The varying electric resistivity may be due to variations in one or more of the following parameters: the volume ratio between the metal powder and the ceramic powder, the size of the ceramic particles, and the type of the ceramic material.

Abstract: The invention relates to a heating system (200) for heating of a fluid. The heating system comprises a supply connection (201) in fluid communication with a supply of fluid to be heated. It further comprises a structured body (108) arranged for heating of the fluid during use of the heating system. The structured body comprises a macroscopic structure (21) of electrically conductive material, the macroscopic structure comprising at least one channel (22) through which the fluid can flow. The heating system further comprises at least two conductors (103,114) configured to electrically connect the structured body to at least one electrical power supply. The at least two conductors are electrically connected to the structured body at a first end (204) and at a second end (205), respectively, of a conductive path within the structured body. The structured body is configured to direct an electrical current to run along the conductive path from the first end to the second end thereof.