Is Niobium Carbide NbC Hard?

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Roche and its subsidiary TIB Molbiol have developed a series of tests for the detection of the monkeypox virus, the Switzerland-based pharmaceutical company announced.  

The monkeypox virus is a close relative of the smallpox virus, belonging to orthpoxviridae in the poxviridae family.  

The modular virus detection tool, called LightMix, includes three orthpoxvirus detection kits with different functions, Roche said in a statement. The first kit detects orthpoxvirus; The second kit tests only for monkeypox virus (west and Central African branches); The third kit contains the main functions of the first two kits, showing specific information on the presence of the monkeypox virus (west and Central African branches) as well as the detection of orpoxvirus.

Thomas Schinek, a Roche executive, said the new test could detect monkeypox and help track its spread. Such diagnostic tools are critical for addressing and ultimately managing emerging public health challenges, as they advance responses such as tracking efforts and treatment strategies.  

The monkeypox virus was first identified in 1958 in a group of monkeys used for research when the animals developed a "pox-like" infection, hence the name. Since May, several non-endemic countries have reported human cases of the monkeypox virus, including the United Kingdom, the United States, Portugal, Spain, and Italy.

Affected by the ever-changing international situation, the supply and prices of international bulk niobium carbide powder are still very uncertain.

What is Niobium Carbide NbC?
Niobium carbide is a kind of metal carbide with the chemical formula NbC.
The appearance of niobium carbide is brown-gray metal powder with purple luster. It belongs to sodium chloride type cubic crystal system.
 
The relative density is 8.47. The lattice constant a=0.447nm. The melting point is 3500 ℃. Microhardness > 23.5Gpa (> 2400 kg/mm2), which is harder than that of 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 hot and cold hydrochloric acid, sulfuric acid, nitric acid, soluble in hot hydrofluoric acid and nitric acid mixed solution. It is stable at 1000℃ and 1100℃, and rapidly oxidized to niobium pentoxide above 1100℃. Niobium carbide is easy to melt in titanium carbide, zirconium carbide, tungsten carbide and other compounds to form isomorphous solid solution mixture.
 
Niobium carbide is a very hard refractory ceramic material. Therefore, it is very suitable for machining applications and wear protection. It is used commercially for tool heads for cutting tools. It is usually processed by sintering and is a commonly used grain growth inhibitor in cemented carbide. It has high corrosion resistance.
 
What is Niobium Carbide NbC Used For?
1.With good chemical stability and high-temperature performance, it is a kind of material with high melting point and high hardness, which is widely used in refractory high temperature materials and cemented carbide additives.
 
2.Niobium carbide is a ternary and quaternary carbide solid solution component, which is used in hot forging die, cutting tool, jet engine turbine blade, valve, tail skirt and rocket nozzle coating with tungsten carbide and molybdenum carbide.
 
3. As a carbide cemented carbide additive, it is a ternary and quaternary carbide solid solution component, such as WC-NbC-C ternary system. It can also be used as a purple artificial gem.
 
4. Used in the production of wear-resistant films and semiconductor films. It can also be used as raw material for the production of molybdenum carbide and for the manufacture of chromium-free special alloys and engineering ceramics.
 
What is Element Nb?
Nb (atomic symbol: Nb, atomic number: 41) is a D block, fifth family, fifth periodic element with an atomic weight of 92.90638. The number of electrons in each shell of Nb's Bohr model Nb is 2, 8, 18 and 12, and its electronic configuration is [Kr] 4d45s1.
In its elemental form, Nb has a gray metallic appearance. Among all the elements, Nb has the largest magnetic penetration depth and is one of the second kind of superconductors (along with vanadium and technetium) of the three elements. Nb exists in pyrochlore, its main commercial sources and uranium deposits.
 
Supplier of Niobium Carbide NbC Powder
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials including silicon powder, nitride powder, graphite powder, zinc sulfide, calcium nitride, 3D printing powder, etc.
If you are looking for high-quality NbC powder, please feel free to contact us and send an inquiry. ([email protected])
 

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