Difference between revisions of "Simple metal containing carbides and nitrides"
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This is likely because all these compounds are in a highly reduced stated and some of them are <br> | This is likely because all these compounds are in a highly reduced stated and some of them are <br> | ||
not even capable of forming a protective [[macroscale passivation layer]]. | not even capable of forming a protective [[macroscale passivation layer]]. | ||
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| + | == Awesome compounds == | ||
Titanium: | Titanium: | ||
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Silicon (counting silicon as metal here): | Silicon (counting silicon as metal here): | ||
| − | * SiC | + | * SiC Silicon carbide |
* Si<sub>3</sub>N<sub>4</sub> Silicon nitride [https://en.wikipedia.org/wiki/Silicon_nitride] | * Si<sub>3</sub>N<sub>4</sub> Silicon nitride [https://en.wikipedia.org/wiki/Silicon_nitride] | ||
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| + | For more awesome compounds see: [[Base materials with high potential]] | ||
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| + | == Compounds that need to be sealed in [[PPV]] to be usable == | ||
Iron: | Iron: | ||
Revision as of 13:34, 21 June 2021
There are few/no natural mineral examples for these compounds.
This is likely because all these compounds are in a highly reduced stated and some of them are
not even capable of forming a protective macroscale passivation layer.
Awesome compounds
Titanium:
- TiC Titanium carbide – and ZrC Zirconum carbide
- TiN Titanium nitride
Silicon (counting silicon as metal here):
- SiC Silicon carbide
- Si3N4 Silicon nitride [1]
For more awesome compounds see: Base materials with high potential
Compounds that need to be sealed in PPV to be usable
Iron:
- Fe3C Iron carbide aka cementite aka iron cohenite – ortorhombic – Mohs 5.5 to 6.0 – 7.20 to 7.65g/ccm – metallic luster
- Iron nitrides – Wikipedia: "Group 7 and group 8 transition metals form nitrides that decompose at relatively low temperatures" Fe2N 400°C
Aluminum:
- Al4C3 Aluminum carbide [2] – hydrolyses in contact with water
- AlN [3] – hydrolyses in contact with water – it's a diamond like compound (a III-VI semiconductor) – highly covalent character
Calcium:
- CaC2 Calcium carbide [4] – must be kept dry – releases ethyne on contact with water
- Ca3N2 calcium nitride [5] – highly reactive with water
Magnesium:
- Mg3N2(s) Magnesium nitide [6] – reacts with water
- Magnesium carbide ??
