Niobiumcarbid
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- CAS-Nr.
- 12069-94-2
- Bezeichnung:
- Niobiumcarbid
- Englisch Name:
- Niobium carbide
- Synonyma:
- Nb2CTx;Nitinol Tubing;NIOBIUM CARBIDE;COLUMBIUM CARBIDE;Methylidyneniobium;niobiumcarbide(nbc);Niobium monocarbide;Niobium(IV) carbide;SILICON, PIECES, 99.95%;Niobium Carbide, -150um
- CBNumber:
- CB5484548
- Summenformel:
- CHNb
- Molgewicht:
- 105.93
- MOL-Datei:
- 12069-94-2.mol
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Niobiumcarbid Eigenschaften
- Schmelzpunkt:
- 3500°C
- Siedepunkt:
- 4300°C
- Dichte
- 7.6 g/mL at 25 °C(lit.)
- Löslichkeit
- insoluble in H2O, acid solutions
- Aggregatzustand
- Powder
- Wichte
- 7.6
- Farbe
- White
- Widerstand (resistivity)
- 51.1–74.0 (ρ/μΩ.cm)
- Wasserlöslichkeit
- Insoluble in water.
- Wärmeleitfähigkeit
- 33.472 W/(m·K)
- Crystal Structure
- Cubic, NaCl Structure
- Hardness, Rockwell A
- 90, at RT
- Modulus of Elasticity
- 330 - 537 GPa
- Poissons Ratio
- 0.22 (@Temperature 23.0 °C )
0.25 (@Temperature 1930 °C )
- Shear Modulus
- 197 - 245 GPa
- Vickers Microhardness
- 2400
- EPA chemische Informationen
- Niobium carbide (NbC) (12069-94-2)
Sicherheit
- Risiko- und Sicherheitserklärung
- Gefahreninformationscode (GHS)
| RIDADR |
UN3178 |
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| WGK Germany |
3 |
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| TSCA |
TSCA listed |
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| HazardClass |
4.1 |
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| PackingGroup |
III |
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| Speicherklasse |
13 - Non Combustible Solids |
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| Bildanzeige (GHS) |
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| Alarmwort |
Warnung
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| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H228 |
Entzündbarer Feststoff. |
Entzündbare Feststoffe |
Kategorie 1 |
Achtung
Warnung |
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P210, P240,P241, P280, P370+P378 |
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| Sicherheit |
| P210 |
Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen. |
| P240 |
Behälter und zu befüllende Anlage erden. |
| P241 |
Explosionsgeschützte [elektrische/Lüftungs-/ Beleuchtungs-/...] Geräte verwenden. |
| P280 |
Schutzhandschuhe/Schutzkleidung/Augenschutz tragen. |
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Niobiumcarbid Chemische Eigenschaften,Einsatz,Produktion Methoden
Chemische Eigenschaften
Niobium carbide is a green cubic crystal with metallic luster and belongs to the sodium chloride type cubic crystal system. The relative density is 8.47, the lattice constant a=0.447nm, and the melting point is 2300°C. Microhardness>235Gpa (>2400kg/mm2), harder than corundum. Elastic modulus 338000N/mm2, thermal expansion coefficient 6.65×10-6/K, thermal conductivity 14w/(m.K), heat of formation -140.7kJ/mol, specific heat capacity 36.8J/(mol.K), resistivity 35μΩ.cm. Insoluble in water and in all acids except a mixture of nitric acid and hydrogen fluoride. It is stable at 1000-1100°C, and rapidly oxidizes to niobium pentoxide at temperatures above 1100°C. Niobium carbide is easy to melt in titanium carbide, zirconium carbide, tungsten carbide and other compounds, and together form an isomorphous solid solution mixture.
Physikalische Eigenschaften
Lavender gray powder, soluble
in HF-HNO
3 mixture. Wear resistant film, coating graphite
in nuclear reactors. Oxidation in
air becomes severe only above
1000°C.
Verwenden
Niobium carbide (NbC) is amongst the hardest technical compounds known. It should thus be excellently suited for machining applications and wear protection. It is used to make hard-tipped tools and special steels and to coat graphite in nuclear reactors.
Application
niobium carbide (NbC) is extremely hard refractory materials. TiC, ZrC, VC and NbC are commercially used in tool bits for cutting tools. HfC and NbC can also be used as refractory coatings in nuclear reactors.
Niobiumcarbid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Niobiumcarbid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 188)Lieferanten
12069-94-2(Niobiumcarbid)Verwandte Suche:
- um 99.8 Methylidyneniobium
- NIOBIUM CARBIDE, 99%NIOBIUM CARBIDE, 99%NIOBIUM CARBIDE, 99%
- NIOBIUM CARBIDE
- SILICON, PIECES, 99.95%
- COLUMBIUM CARBIDE
- Niobium(IV) carbide
- Niobium carbide, 99+% (metals basis)
- Niobium monocarbide
- Niobium carbide, 99% trace metals basis
- Niobium carbide powder (NbC)
- niobiumcarbide(nbc)
- Methylidyneniobium
- Niobium Carbide (Average Particle Size 1 - 3um)
- Niobium Carbide, -150um
- Molybdenum Silicide (MoSi2) Sputtering Targets
- Nitinol Tubing
- Niobium Carbide Nanoparticles
- High-purity ultra-fine niobium carbide powder (NbC)
- Nb2CTx (MXene) Multilayer Nanoflake
- Nb2CTx
- 12069-94-2
- CNb
- CHNb
- Carbides
- Ceramics
- Metal and Ceramic Science
- Inorganics
