| 摘要 |
Method for reactively joining materials in solid form, such as intermetallic compounds and technical ceramics, wherein: a) a mixed powder is provided in solid form between the materials to be joined; b) at least the powder mixture is locally heated, causing exothermic reactions to take place, whereby the heat is released at the contact surfaces of the materials to be joined, where it causes a local melting; and c) subsequently cools down. At least one of the materials to be joined has a melting point coinciding with the melting point of the lowest-melting component in the powder mixture; and the exothermic process is initiated at a temperature before the melting point of one of the materials to be joined is reached. Before the exothermic process is initiated, a component is added to the powder mixture, forming a liquid eutectic phase with the material having the lowest melting point of the materials to be joined, with the liquid eutectic phase acting as vehicle for the reactants in the powder mixture. |
