samensmelt

Samensmelt is a term used in speculative materials science to denote a hypothetical metallurgical process in which multiple feedstocks are melted and fused simultaneously to form a single homogeneous melt. The name derives from the Dutch samensmelten, meaning to fuse together. In concept, samensmelt seeks to bypass sequential melting and blending by creating a common molten pool in which constituents react and diffuse to achieve uniform composition during a single heating cycle.

Most proposals describe a controlled heating system that raises all inputs toward their liquidus temperatures while maintaining a protective atmosphere and employing fluxes or solvent additives to minimize oxidation and unwanted intermetallics. Feed streams are introduced into a shared crucible or chamber, where agitation by stirring mechanisms, electromagnetic fields, or gas jets promotes mixing and reduces concentration gradients. Some designs call for eutectic intermediates or carrier phases to accommodate components with widely different melting points.

Potential advantages include shortened processing time, reduced number of processing steps, and improved homogenization of complex alloys or recycled material streams. Challenges include achieving uniform distribution of elements with large melting-point gaps, managing oxide formation, diffusion limitations, and higher capital or energy costs. The concept remains largely experimental, with few validated demonstrations and no widespread industrial deployment.

In literature, samensmelt is discussed mainly as a theoretical idea or in early-stage laboratory experiments. It is related to broader topics such as alloying, melting, and homogenization heat treatment.