The core materials consist of soluble phosphate binder, magnesium oxide hardener and high-purity silicon oxide as refractory aggregate materials.

这种芯料采用水溶性磷酸盐为粘结剂、氧化镁为固化剂、高纯二氧化硅为耐火骨料。

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In 2010 a team of researchers from Washington State University found that artificial regolith containing silicon, aluminium, calcium, iron and magnesium oxide could be used by 3D printers to create solid objects.

BBC: 3D printed moon building designs revealed