Spelter been used since about the 1860s to make statues, tablewares, and lamps that resemble bronze. Spelter is soft and breaks easily. To test for spelter, scratch the base of the piece. Bronze will appear as bright yellow while spelter will show a silvery scratch. The word "pewter" is thought to be derived from the word "spelter". Zinc ingots formed by smelting might also be termed spelter. Spelter Spelter, while sometimes used merely as a synonym for zinc, is often used to identify a zinc alloy. In this sense it might be an alloy of equal parts copper and zinc, i.e.
High entropy alloys High entropy alloys High-entropy alloys (HEAs) are substances that are constructed with equal or nearly equal quantities of five or more metals. These alloys are currently the focus of significant attention in materials science and engineering because they have potentially desirable properties. Prior to the synthesis of these substances, typical metal alloys comprised one or two major components with smaller amounts of other elements. For example, additional elements can be added to iron to improve its properties, thereby creating an iron based alloy. Hence, high entropy alloys are a novel material. Furthermore, research indicates that some HEAs have considerably better