Difference between revisions of "Simple metal containing carbides and nitrides"

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{{stub}}
 
{{stub}}
  
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There are few/no natural mineral examples fot these compounds1 likely because all these compounds <br>
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There are few/no natural mineral examples for these compounds. <br>
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are in a highly reduced stated and some not even capable of froming a prodective [[macroscale passivation]] layer.
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This is likely because all these compounds are in a highly reduced stated and some of them are <br>
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not even capable of forming a protective [[macroscale passivation layer]].
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== Awesome compounds ==
  
 
Titanium:
 
Titanium:
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* TiC Titanium carbide – and ZrC Zirconum carbide
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* TiC [https://en.wikipedia.org/wiki/Titanium_carbide Titanium carbide] – and ZrC [https://en.wikipedia.org/wiki/Zirconium_carbide Zirconum carbide]
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* TiN Titanium nitride
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* TiN [https://en.wikipedia.org/wiki/Titanium_nitride Titanium nitride] – and ZrN [https://en.wikipedia.org/wiki/Zirconium_nitride Zirconium nitride]
  
 
Silicon (counting silicon as metal here):
 
Silicon (counting silicon as metal here):
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* SiC Sicicon carbide
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* SiC [https://en.wikipedia.org/wiki/Silicon_carbide Silicon carbide]
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* Si<sub>3</sub>N<sub>4</sub> Silicon nitride [https://en.wikipedia.org/wiki/Silicon_nitride]
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* Si<sub>3</sub>N<sub>4</sub> [https://en.wikipedia.org/wiki/Silicon_nitride Silicon nitride]
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For more awesome compounds see: [[Base materials with high potential]]
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Related: [https://en.wikipedia.org/wiki/Metallocarbohedryne Metallocarbohedryne] (titanium carbides)
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== Compounds that need to be sealed in [[PPV]] to be usable ==
  
 
Iron:
 
Iron:
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* Mg<sub>3</sub>N<sub>2(s)</sub> Magnesium nitide [https://en.wikipedia.org/wiki/Magnesium_nitride] – reacts with water
 
* Mg<sub>3</sub>N<sub>2(s)</sub> Magnesium nitide [https://en.wikipedia.org/wiki/Magnesium_nitride] – reacts with water
 
* Magnesium carbide ??
 
* Magnesium carbide ??
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== Compounds with more rare elements ==
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'''Nitrides:'''
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* '''CrN – Carlsbergite [https://www.mineralienatlas.de/lexikon/index.php/MineralData?lang=en&language=english&mineral=Carlsbergit (mineralienatlas)] wikipedia: [https://en.wikipedia.org/wiki/Chromium_nitride chromium nitride] – [https://en.wikipedia.org/wiki/Carlsbergite carlsbergite] – Mohs 7 – 1770°C'''
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* VN – [https://www.mineralienatlas.de/lexikon/index.php/MineralData?lang=en&language=english&mineral=Uakitit Uakitite] [https://en.wikipedia.org/wiki/Vanadium_nitride (wikipedia)] – Mohs ??
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* Semimetal: Ge<sub>3</sub>N<sub>4</sub> – [https://en.wikipedia.org/wiki/Germanium_nitride Germanium nitride]
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----
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* '''ZrN – [https://en.wikipedia.org/wiki/Zirconium_nitride Zirconium nitride]'''
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* NbN – [https://en.wikipedia.org/wiki/Niobium_nitride Niobium nitride] – 2573°C – 8.47g/ccm
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* MoN (and Mo<sub>2</sub>N) – Molybdenium nitride (?)
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----
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* (W<sub>2</sub>N, WN, WN<sub>2</sub>) [https://en.wikipedia.org/wiki/Tungsten_nitride Tungsten nitride] – unstable against water
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* HfC – Hafnium carbide – refractory compound
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* TaN (anf other stoichometries) – [https://en.wikipedia.org/wiki/Tantalum_nitride Tantalum nitride]
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'''Carbides:'''<br>
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----
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4th period:
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* '''Cr<sub>3</sub>C<sub>2</sub> – [https://en.wikipedia.org/wiki/Tongbaite Tongbaite (wikipedia)] [https://www.mineralienatlas.de/lexikon/index.php/MineralData?lang=en&language=english&mineral=Tongbait (mineralienatlas)] – Mohs 8.5 – ortorhombic – 1,895 °C'''
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* Various chromium carbides: [https://en.wikipedia.org/wiki/Chromium(II)_carbide Chromium(II) carbide]
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* [//en.wikipedia.org/wiki/Chromium_carbide Cr<sub>3</sub>C<sub>2</sub>; Cr<sub>7</sub>C<sub>3</sub>; Cr<sub>23</sub>C<sub>6</sub>] (1,895 °C; 3,443 °F; 2,168 K; extremely hard; very corrosion resistant)
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* [//en.wikipedia.org/wiki/Vanadium_carbide VC] (2810 °C; 9-9.5 Mohs, cubic)
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* Semimental: Germanium carbide??
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----
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5th period:
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* '''[//en.wikipedia.org/wiki/Zirconium_carbide ZrC] (3532 °C; extremely hard; highly corrosion resistant; very metallic, cubic)'''
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* [http://en.wikipedia.org/wiki/Niobium_carbide Nb<sub>2</sub>C] (3490 °C; extremely hard; highly corrosion resistant)
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* Mo<sub>2</sub>C (2692 °C) [http://tttmetalpowder.com/molybdenum-carbide-powder-303/]; MoC; Mo<sub>3</sub>C<sub>2</sub> [http://en.wikipedia.org/wiki/Carbide]
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----
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6th period:
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* [//en.wikipedia.org/wiki/Hafnium_carbide HfC] (3900 °C; very refractory; low oxidation resistance, cubic)
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* TaC – [https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Tantalcarbid Tantalum carbide (mineralienatlas)] – Mohs 6-7 – ''tantal is very rare''
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* WC – [https://www.mineralienatlas.de/lexikon/index.php/MineralData?lang=en&language=english&mineral=Qusongit Qusongit (mineralienatlas)] – Mohs 7.25
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'''Borides:'''
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----
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4th period:
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* '''CrB (and other stoichometries Cr<sub>2</sub>B, Cr<sub>5</sub>B<sub>3</sub>, Cr<sub>3</sub>B<sub>4</sub>, CrB<sub>2</sub>, and CrB<sub>4</sub>) – [https://en.wikipedia.org/wiki/Chromium(III)_boride Chromium(III) boride] – refractory 2100°C – very hard'''
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* VB, VB<sub>2</sub> – Vanadium boride (?)
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----
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5th period:
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* '''Zr<sub>2</sub> – [https://en.wikipedia.org/wiki/Zirconium_diboride Zirconium diboride]'''
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* Nb<sub>2</sub> – [https://en.wikipedia.org/wiki/Niobium_diboride Niobium diboride]
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* Molybdenium boride ??
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----
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6th period:
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* Hf<sub>2</sub> – [https://en.wikipedia.org/wiki/Hafnium_diboride Hafnium diboride]
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* Ta<sub>2</sub> – [https://en.wikipedia.org/wiki/Tantalum_boride Tantalum boride]
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* WB<sub>2</sub> (WB, WB<sub>4</sub>) – [https://en.wikipedia.org/wiki/Tungsten_borides Tungsten borides]
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* ReB<sub>2</sub> [https://en.wikipedia.org/wiki/Rhenium_diboride Rhenium_diboride]
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* OsB, Os<sub>2</sub>B<sub>3</sub> and OsB<sub>2</sub> – [https://en.wikipedia.org/wiki/Osmium_borides Osmium borides]
  
 
== Related ==
 
== Related ==
−
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* [[Gemstone like compounds with high potential]]
 
* [[Refractory compound]]
 
* [[Refractory compound]]
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* [[gemstone like compound]]
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== External links ==
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* [https://en.wikipedia.org/wiki/Superhard_material Superhard material]
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* [https://en.wikipedia.org/wiki/Category:Superhard_materials Category:Superhard_materials]
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----
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* [https://en.wikipedia.org/wiki/Category:Nitrides Category:Nitrides]

Latest revision as of 23:55, 1 July 2021

This article is a stub. It needs to be expanded.

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:

Silicon (counting silicon as metal here):

For more awesome compounds see: Base materials with high potential

Related: Metallocarbohedryne (titanium carbides)

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 [1] – hydrolyses in contact with water
  • AlN [2] – hydrolyses in contact with water – it's a diamond like compound (a III-VI semiconductor) – highly covalent character

Calcium:

  • CaC2 Calcium carbide [3] – must be kept dry – releases ethyne on contact with water
  • Ca3N2 calcium nitride [4] – highly reactive with water

Magnesium:

  • Mg3N2(s) Magnesium nitide [5] – reacts with water
  • Magnesium carbide ??

Compounds with more rare elements

Nitrides:

Carbides:

4th period:

5th period:

  • ZrC (3532 °C; extremely hard; highly corrosion resistant; very metallic, cubic)
  • Nb2C (3490 °C; extremely hard; highly corrosion resistant)
  • Mo2C (2692 °C) [6]; MoC; Mo3C2 [7]

6th period:

Borides:

4th period:

  • CrB (and other stoichometries Cr2B, Cr5B3, Cr3B4, CrB2, and CrB4) – Chromium(III) boride – refractory 2100°C – very hard
  • VB, VB2 – Vanadium boride (?)

5th period:

6th period:

Related

External links

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