Difference between revisions of "Base materials with high potential"
From apm
(→Simple rutile structure & hard) |
(→Simple salt structures: restructuring) |
||
| Line 22: | Line 22: | ||
== Simple salt structures == | == Simple salt structures == | ||
| − | * [[periclase]] | + | * MgO [[periclase]] |
| − | + | Some [[transition metal monoxides]] (Typical: '''Max 1300-1900°C - Mohs 5-6''') | |
| + | * TiO hongquiite | ||
| + | * MnO Manganosite - (Mn is less abundant) | ||
| + | * FeO wüstite | ||
| + | * NiO brommelite - (Ni is not too abundant on earth but very abundant on metallic asteroids) | ||
| + | V vanadium, Cr chromium, Co cobalt do that too but <br> | ||
| + | these elements are more scarce thus not included as pure high volume base materials here | ||
== Other == | == Other == | ||
Revision as of 10:19, 14 April 2021
Very good materials
Best of the best
- diamond and its polymorphs including hexagonal diamond aka lonsdaleite
- moissanite - SiC - high heat resistance
- stishovite and seifertite - metastable ultrahard and dense SiO2 polymorphs
- simple titanium gemstones including: TiN TiP TiC TiSi2 TiB2 TiO2 Ti2O3
Simple rutile structure & hard
- rutile TiO2
- stishovite - metastable SiO2 polymorph - rutile structure & very hard and dense
Neo-polymorphs with rutile structure
See: the stishovite continuum on the page about silicon
Silicon group: GeO2, SnO2, β-PbO2
Other: MnO2, FeSbO4
Simple salt structures
- MgO periclase
Some transition metal monoxides (Typical: Max 1300-1900°C - Mohs 5-6)
- TiO hongquiite
- MnO Manganosite - (Mn is less abundant)
- FeO wüstite
- NiO brommelite - (Ni is not too abundant on earth but very abundant on metallic asteroids)
V vanadium, Cr chromium, Co cobalt do that too but
these elements are more scarce thus not included as pure high volume base materials here
Other
- spinell MgAl2O4 - very hard and cubic
Materials with some weakness
Con: low crystal structure symmetry
- leukosapphire - very hard
- quartz - and other low density polymorphs of SiO2
Con: Rather soft materials
- calcite and aragonite
Others
- garnets - hard and cubic (but big unit cell)
- brommelite BeO - very hard but beryllium is scarce and poisonous
