“…A molten oxide electrolysis process has been proposed to process raw regolith to produce oxygen for life support, silicon for solar cells, reactive metals for advanced storage batteries, and steel and aluminium for construction (Sammells and Semkow, 1988; Taylor and Carrier, 1992). Alternatively, some studies have been performed to develop methods to use lunar regolith as a construction (Grugel and Toutanji, 2008; Allen et al , 1994; Faierson et al , 2010; Taylor and Meek, 2005), electronic substrate (Horton et al , 2005), radiation shielding (Miller et al , 2009; Roberson et al , 2009), refractory and heat shield material (Poisl and Fabes, 1993). In situ fabrication and repair (ISFR) using locally provisioned and/or locally refined materials on the Moon require state‐of‐the‐art fabrication technologies to support habitat structure development, tools and mechanical parts fabrication, as well as repair and replacement of ground support and space mission hardware (such as life support items and launch vehicle components).…”