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Revision as of 21:36, 30 July 2011 edit83.227.28.196 (talk)No edit summary← Previous edit Latest revision as of 23:25, 23 July 2022 edit undoVycl1994 (talk | contribs)Autopatrolled, Extended confirmed users126,044 edits →Magnetism 
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{{chembox {{chembox
| verifiedrevid = 396312265 | verifiedrevid = 442260841
| ImageFile =Chromium(III)-nitride-xtal-3D-vdW.png | ImageFile =Chromium-nitride-xtal-3D-SF.png
| ImageSize = | ImageSize =
| ImageName =Chromium nitride | ImageName =Chromium nitride
| IUPACName = Chromium nitride | IUPACName = Chromium nitride
| OtherNames = Chromium(III) nitride | OtherNames = Chromium(III) nitride
| Section1 = {{Chembox Identifiers |Section1={{Chembox Identifiers
| SMILES = #N | SMILES = #N
| StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/Cr.N | StdInChI = 1S/Cr.N
Line 13: Line 13:
| StdInChIKey = CXOWYMLTGOFURZ-UHFFFAOYSA-N | StdInChIKey = CXOWYMLTGOFURZ-UHFFFAOYSA-N
| CASNo = 24094-93-7 | CASNo = 24094-93-7
| CASNo_Ref = {{cascite|correct|CAS}} | CASNo_Ref = {{cascite|correct|CAS}}
| UNII_Ref = {{fdacite|correct|FDA}}
⚫ | PubChem =
| UNII = W46I1HZ91F
⚫ | InChI = 1/Cr.N/rCrN/c1-2
⚫ | PubChem = 90362
⚫ | InChIKey = CXOWYMLTGOFURZ-NIYUYJRQAK
| EC_number = 246-016-3
⚫ | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
⚫ | InChI = 1/Cr.N/rCrN/c1-2
⚫ | InChIKey = CXOWYMLTGOFURZ-NIYUYJRQAK
⚫ | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 81581 | ChemSpiderID = 81581
}} }}
| Section2 = {{Chembox Properties |Section2={{Chembox Properties
| Formula = CrN | Formula = CrN
| MolarMass = 66.003 g/mol | MolarMass = 66.003 g/mol
| Appearance = Black powder | Appearance = Black powder
| Density = 5.9 g/cm<sup>3</sup> <ref name="webelements"></ref> | Density = 5.9 g/cm<sup>3</sup> <ref name="webelements"></ref>
| MeltingPt = 1770 ˚C (decomp.)<ref name="G&E">{{Greenwood&Earnshaw1st|page=480}}</ref> | MeltingPt = 1770 ˚C (decomp.)<ref name="G&E">{{Greenwood&Earnshaw1st|page=480}}</ref>
| BoilingPt = | BoilingPt =
| Solubility = Insoluble<ref name="alfa">http://www.alfa-chemcat.com/daten_msds/D/12149_-_D.pdf</ref> | Solubility = Insoluble<ref name="alfa">http://www.alfa-chemcat.com/daten_msds/D/12149_-_D.pdf{{dead link|date=August 2017 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
}} }}
| Section4 = {{Chembox Thermochemistry |Section4={{Chembox Thermochemistry
| DeltaHf = &minus;117.15 kJ/mol <ref name="NIST"></ref> | DeltaHf = &minus;117.15 kJ/mol <ref name="NIST"></ref>
| Entropy = 37.75 J&thinsp;K<sup>&minus;1</sup>&thinsp;mol<sup>&minus;1</sup> <ref name="NIST" /> | Entropy = 37.75 J&thinsp;K<sup>&minus;1</sup>&thinsp;mol<sup>&minus;1</sup> <ref name="NIST" />
| HeatCapacity = | HeatCapacity =
}} }}
| Section7 = {{Chembox Hazards |Section7={{Chembox Hazards
| ExternalMSDS = | ExternalSDS =
⚫ | FlashPt = Non-flammable
| EUIndex = Not listed
| PEL = TWA 1 mg/m<sup>3</sup><ref name=PGCH>{{PGCH|0141}}</ref>
| RPhrases =
| REL = TWA 0.5 mg/m<sup>3</sup><ref name=PGCH/>
| SPhrases =
| IDLH = 250 mg/m<sup>3</sup><ref name=PGCH/>
⚫ | FlashPt = Non-flammable
}} }}
| Section8 = {{Chembox Related |Section8={{Chembox Related
| OtherCpds = ] | OtherCompounds = ]
}} }}
}} }}
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:2 Cr + {{chem|N|2}} → 2 CrN :2 Cr + {{chem|N|2}} → 2 CrN


It can also synthesize by Physical Vapour Deposition technique such as ]. It can also synthesize by Physical Vapour Deposition technique such as ].


==Applications== ==Applications==
CrN is used as a coating material for corrosion resistance and in metal forming and plastic moulding applications<ref> J. Vetter, Surf. Coat. Technol. 76, 719 (2005)</ref>. CrN is also a valuable component in advanced multicomponent coating systems, such as CrAlN, for hard, wear-resistant applications on cutting tools<ref>A. E. Reiter, V. H. Derflinger, B. Hanselmann, T. Bachmann, and B. Sartory, Surf. Coat. Technol. 200, 2114 (2005).</ref>. CrN is used as a coating material for corrosion resistance and in metal forming and plastic moulding applications.<ref>{{cite journal | last=Vetter | first=J. | title=Vacuum arc coatings for tools: potential and application | journal=Surface and Coatings Technology | publisher=Elsevier BV | volume=76-77 | year=1995 | issn=0257-8972 | doi=10.1016/0257-8972(95)02499-9 | pages=719–724}}</ref> CrN is often used on medical implants and tools. CrN is also a valuable component in advanced multicomponent coating systems, such as CrAlN, for hard, wear-resistant applications on cutting tools.<ref>{{cite journal | last1=Reiter | first1=A.E. | last2=Derflinger | first2=V.H. | last3=Hanselmann | first3=B. | last4=Bachmann | first4=T. | last5=Sartory | first5=B. | title=Investigation of the properties of Al<sub>1−x</sub>Cr<sub>x</sub>N coatings prepared by cathodic arc evaporation | journal=Surface and Coatings Technology | publisher=Elsevier BV | volume=200 | issue=7 | year=2005 | issn=0257-8972 | doi=10.1016/j.surfcoat.2005.01.043 | pages=2114–2122}}</ref>


==Magnetism== ==Magnetism==
The fundamental materials physics of CrN, giving rise to its favorable properties, has been debated recently in high-profile scientific journals such as Nature Materials.<ref>{{cite journal | last1=Rivadulla | first1=Francisco | last2=Bañobre-López | first2=Manuel | last3=Quintela | first3=Camilo X. | last4=Piñeiro | first4=Alberto | last5=Pardo | first5=Victor | last6=Baldomir | first6=Daniel | last7=López-Quintela | first7=Manuel Arturo | last8=Rivas | first8=José | last9=Ramos | first9=Carlos A. | last10=Salva | first10=Horacio | last11=Zhou | first11=Jian-Shi | last12=Goodenough | first12=John B. |display-authors=5| title=Reduction of the bulk modulus at high pressure in CrN | journal=Nature Materials | publisher=Springer Science and Business Media LLC | volume=8 | issue=12 | date=2009-10-25 | issn=1476-1122 | doi=10.1038/nmat2549 | pages=947–951| pmid=19855384 | bibcode=2009NatMa...8..947R }}</ref><ref>{{cite journal | last1=Alling | first1=Björn | last2=Marten | first2=Tobias | last3=Abrikosov | first3=Igor A. | title=Questionable collapse of the bulk modulus in CrN | journal=Nature Materials | publisher=Springer Science and Business Media LLC | volume=9 | issue=4 | year=2010 | issn=1476-1122 | doi=10.1038/nmat2722 | pages=283–284| pmid=20332781 | bibcode=2010NatMa...9..283A }}</ref> In particular, the importance of magnetism in both the low temperature and the high temperature phases has been demonstrated by means of quantum mechanical calculations of the electronic structure of the compound.<ref>{{cite journal | last1=Filippetti | first1=Alessio | last2=Hill | first2=Nicola A. | title=Magnetic Stress as a Driving Force of Structural Distortions: The Case of CrN | journal=Physical Review Letters | publisher=American Physical Society (APS) | volume=85 | issue=24 | date=2000-12-11 | issn=0031-9007 | doi=10.1103/physrevlett.85.5166 | pages=5166–5169| pmid=11102212 | arxiv=cond-mat/0004252 | bibcode=2000PhRvL..85.5166F | s2cid=39265221 }}</ref><ref>{{cite journal|author2-link=Walter R. L. Lambrecht | last1=Herwadkar | first1=Aditi | last2=Lambrecht | first2=Walter R. L. | title=Electronic structure of CrN: A borderline Mott insulator | journal=Physical Review B | publisher=American Physical Society (APS) | volume=79 | issue=3 | date=2009-01-29 | issn=1098-0121 | doi=10.1103/physrevb.79.035125 | page=035125| bibcode=2009PhRvB..79c5125H }}</ref><ref>{{cite journal | last1=Alling | first1=B. | last2=Marten | first2=T. | last3=Abrikosov | first3=I. A. | title=Effect of magnetic disorder and strong electron correlations on the thermodynamics of CrN | journal=Physical Review B | publisher=American Physical Society (APS) | volume=82 | issue=18 | date=2010-11-29 | issn=1098-0121 | doi=10.1103/physrevb.82.184430 | page=184430| arxiv=1006.3460 | bibcode=2010PhRvB..82r4430A | s2cid=6837803 | url=http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-60439 }}</ref>
The fundamental materials physics of CrN, giving rise to its favorable properties, has been debated recently in high-profile scientific journals such as Nature Materials<ref></ref> <ref></ref>. In particular, the importance of magnetism in both the low temperature and the high temperature phases has been demonstrated by means of quantum mechanical calculations of the electronic structure of the compound<ref>.</ref> <ref></ref> <ref></ref>.

==Natural occurrence==
Though rare, ] - the natural form of chromium nitride - occurs in some meteorites.<ref>{{cite web|website=Mindat.org|url=http://www.mindat.org/min-904.html|title=Carlsbergite: Mineral Information, data, and localities|access-date=2020-03-17}}</ref>


==References== ==References==
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{{Chromium compounds}} {{Chromium compounds}}
{{Nitrides}}


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