+86-15698999555
中文|English
Home Company
Honor
Products
Case
News
Purchase
Online
Contact us
products

products

Niobium Carbide powder, NbC 

Release time :2020/04/07
Niobium Carbide powder, NbC

海鑫產品介紹.jpg

產品介紹1.png

產品介紹2.png

海鑫COA.jpg

碳化鈮質保書.png

報告.jpg

海鑫XRD.jpg

碳化鈮xrd水印-600.jpg

海鑫SIZE.jpg

英文600.png

海鑫數據條.jpg

Niobium carbide
CAS (12069-94-2
EINECS. 235-117-8
physico-chemical property
Niobium carbide is green cubic crystal with metallic luster and belongs to sodium chloride 

cubic crystal system.
Relative density 8.47, lattice constant A =0.447nm,
Melting point is 3500 ℃. Microhardness >23.5 Gpa(>2400 kg/mm2), harder than corundum. 

338000 N/was elastic modulus, thermal expansion coefficient of 6.65 * 10 ^ (6)/K, the 

thermal conductivity of 14 w/(m K), generate heat - 140.7 kJ/mol, specific heat capacity 

of 36.8 J/(mol · K), the resistivity of 35 mu Ω · cm.
Insoluble in hot and cold hydrochloric acid, sulfuric acid, nitric acid, soluble in hot hydrofluoric 

acid and nitric acid mixed solution. Stable at 1000~1100℃ and rapidly oxidized to niobium 

pentoxide above 1100℃. Niobium carbide is easy to be fused into titanium carbide, zirconium 

carbide, tungsten carbide and other compounds, and together to form a homogeneous solid 

solution mixture. Melting point: 3500℃, density: 7.6g/cm (25℃)

use
As an additive of carbide hard alloy, it is a component of ternary and quaternary carbide solid 

solution, such as WC-NBC-C ternary system. Also can make purple artificial gem.
Polycarbides based on it, such as NBC-WC-C ternary systems, can be used as nozzle lining 

materials for aerospace applications
Niobium carbide (NbC) is a green cubic crystal with metallic luster and belongs to sodium 

chloride cubic crystal system. It is a kind of high melting point, high hardness material, widely 

used in refractory high temperature material and hard alloy additive.
As carbide additive, it is the component of ternary and quaternary carbide solid solution, such 

as WC-NBC-C ternary system. Also can make purple artificial gem.
Niobium carbide has good chemical stability and high temperature performance. Insoluble in 

hot and cold hydrochloric acid, sulfuric acid, nitric acid, soluble in hot hydrofluoric acid and nitric 

acid mixed solution; The mixture was fused into titanium carbide, zirconium carbide, tungsten 

carbide and other compounds, and the mixture was produced together. Stable at 1000-1100℃ 

and rapidly oxidized to niobium pentoxide above 1100℃. Generally, it is packed in plastic bottles 

or aluminum foil bags inside the carton.

(2) Product use: Application in composite materials:- duplex ceramic: as one of the raw material 

of duplex ceramic material, made of niobium carbide duplex ceramic materials with high hardness, 

high melting point, good chemical stability and electrical conductivity, is often used in wear-resistant 

parts, cemented carbide cutting tools and electrode areas: not only can be used as a cemented 

carbide grain growth inhibitor, but also with other carbides formed outside the WC and Co third 

dispersoid, significantly improve the carbide hot hardness and thermal shock resistance to pressure 

oxidation resistance abilityNiobium carbide with improve the hardness of alloy and improve the 

fracture toughness of the alloy, etc, so it can be used for the preparation of the cutting performance 

of cemented carbide cutting tool materials and niobium carbide can be made into purple artificial 

gem - surfacing electrode, solid niobium carbide hard phase into the hardfacing layer organization, 

make the welding layer has good wear-resistant skeleton, wearability greatly improve the overlaying 

welding electrode wear-resistant alloy, its wear resistance than that of quenched 45 # steel (HRC50) 

1.2 1.8 times as high, than in Fe - Cr - C - B running-in exceeds 2.4 to 3.6 times the resistanceWelds 

at the same time, wear-resistant overlaying welding layer without preheating, available in workpiece 

surface welding, surface tiny cracks can release of surfacing welding layer stress and not spreading 

within the parent metal and steel strengthening phase in the process of steelmaking trace niobium 

carbide, can achieve the effect of precipitation strengthening and fine grain strengthening, so as to 

improve the comprehensive mechanical properties of steel, aerospace parts: used for turbine rotor 

blade engine nozzle jet vane lining and nuclear reactor structure and many other aviation equipment 

spare parts preparation of materials in the application of coating materials:- die steel surface coating: 

niobium carbide as metal carbides, has the very high hardness heat strength and abrasion resistance 

so it applied in steel shows that can improve the die surface wear resistance - metal work-piece coating: 

in the metal matrix composite niobium carbide surface of workpiece, make its surface hardness is 

greatly increased, can achieve HV2800 above, at the same time, improve the working temperature 

of the workpiece density and organization, so as to extend its service life by chemical liquid phase 

deposition process can realize the niobium carbide coating in the surface of cast iron piston rings, 

coating and the base material in combination with the strong;This coating piston ring has good storage 

pocket shape structure, and the advantages of both high hardness, can be significantly reduced 

without lubrication medium and the sliding friction coefficient when the diesel engine oil lubrication, 

greatly improving the wear resistance, can reduce the friction loss of diesel engine at the same time,

 improve diesel engine performance - other niobium carbide coating: spacecraft of high temperature 

components using niobium carbide coating, can make its service life significantly improved in the 

electronic industry, electronic tubes intermediary material using ultrafine cobalt containing niobium 

carbide, to improve the rate of radiation on the surface of the gridLower the temperature in the grid 

and reduce the grid thermal emission have a significant effect, so as to prolong the life of electronic 

tubes in the application of metal niobium production: the main indirect reduction method is used to 

produce metal niobium, the output of niobium carbide first used as a reductant, and niobium pentoxide 

generated thick metal niobium, made for refining high purity metal niobium addition, niobium carbide 

can also direct reduction to generate pure metal niobium niobium pentoxide.

海鑫技術標準條幅.jpg

柱狀圖.jpg

表.png

亚洲 图片 另类 综合 小说

    <pre id="wxp7k"></pre>

      <code id="wxp7k"></code><th id="wxp7k"><video id="wxp7k"></video></th>

        <object id="wxp7k"></object>

        <th id="wxp7k"><option id="wxp7k"></option></th><object id="wxp7k"></object>