Vacuum sintering is the process of forming a single mass from multiple components, typically powder, by heat and/or pressure without melting the base materials to the point of liquefaction.
Process
The material is placed in a furnace, and the temperature is raised to a specific level, typically below the material's recrystallization temperature but high enough to allow for stress relief. The temperature and soak time depend on the material type and thickness. After the soaking period, the material is slowly cooled down within the furnace. The controlled cooling rate helps prevent the formation of new stresses or cracks.