In alloys, tantalum ensures a high degree of hardness; for example, it is used to refine high-strength and heat-resistant steel and is used in nickel-based superalloys. The technology metal is also in demand for the production of microelectric capacitors, which are used in computers, mobile phones and car electronics, among other things. Tantalum is also used in sputtering targets for coating processes. Plant engineering and tools, consumer and communication electronics and medical technology are further fields of application.