A quick overview of molybdenum carbide

Carbide properties of Molybdenum Its chemical formula is molybdenum caride MoC is Molecular Weight and is 107.95.
It exhibits high melting point, hardness and thermal stability. It has a melting point of 2692degC. It's insoluble in water and Lye. However, it is slightly solubilized in hydrofluoric acid, sulfuric and nitric acids.
There are two main kinds of molybdenum-carbidide catalytic reactions:
1. Hydrogenation reaction
2. Hydrodesulfurization HDS or hydrodenitrogenation HDN;
3. The Isomerization Reaction
4. The hydrocarbon conversion and the synthesis reaction
5. Use in the ammonia synthesis
Prepare molybdenum carbonide
Preparation principle: Mo+C- MoC
They can either be mixed directly, or they are prepared through the reaction between molybdenum dioxide and molybdate under a reducing atmosphere of 800°C.

Molybdenum Carbide:
The global consumption structure shows that molybdenum has been an ally to iron. Molybdenum is consumed in 80% of Western developed nations' steel consumption. Steel absorbs 30% of all molybdenum while low-alloy and stainless steel absorb 30%. Drill bits and cutting instruments account for 10%. Cast steel makes up 10%. The remaining 20% is used in molybdenum chemical, petroleum refining and molybdenum oil lubricants. Most commonly, 75% of the molybdenum used in US steel production was in 1998.
Additionally, the aerospace, metal processing, electronics and other industries are increasingly reliant on molybdenum based alloys.
1. Molybdenum alloy
The most popular molybdenum alloy, TZM-alloy has high strengths and excellent comprehensive properties. US uses TZM to produce turbine disks. The amount of molybdenum that is used in the production of these engines accounts for 15%. There are 22 grade levels of molybdenum in my country, which includes TZM alloy. The country's output of molybdenum materials and products was almost 200 tons in the 1990s.
High mechanical properties of TZM molybdenum alloys and TZC molybdenum alloys outperform those of pure molybdenum. They are extensively used for the production of molds and structural parts. Since the early 20th century, they have been used in hot-perforated plugs for various seamless steel pipe. This type of sintered molybdenum cap made by powder smelting technology lowers consumption (50% less than in the as-cast condition), and has a 1.5- to 2-fold increase in service life.
This seamless tube, made from molybdenum/rhenium alloy and 50% Re (with excellent performance), can be used at temperatures near its melting point. This tube can also be used to form the bracket, the ring, the grid, or any other part of the thermowell or the cathode in the electron tubes.
Molybdenum or molybdenum alloys are not only strong, but they also possess good thermal conductivity (similar to the electron tube glasses), and have a lower thermal expansion coefficient. Therefore, plates, strips, foils, etc. Produced using conventional processing methods. These are used in electronic tubes, anodes, support materials, electric lights, part manufacturing, as well as metal processing tools like die casting and extrusions dies and forging dies. These components are extensively used.
2. Alloying steel elements
The ally to steel molybdenum together with nickel (and chromium) can decrease embrittlement during heat treatment in alloy steels. To address the problem of low tungsten resource, America has been leading by using molybdenum in high-speed stainless steel. Molybdenum, according to calculations has twice the capacity of tungsten. The steel that contains 18% of tungsten can now be replaced with the steel that has 9% molybdenum. Moreover, chrome and vanadium can be added together. This greatly lowers steel's production costs. In stainless steel, molybdenum plays a vital role in improving corrosion resistance and strength. It also improves weldability. You can clearly see that molybdenum is an important component of the steel industry.
3. Other uses
Molybdenum is very low in vapor pressure at both vacuum furnace temperatures and work temperature. This means that the parts made of molybdenum are least likely to cause any pollution or damage to workpieces in the furnace. Furthermore, evaporation loss won't affect high-molybdenum items such as heating elements, thermal insulation, or encapsulation.
Molybdenum's high strength makes it an ideal material for electrodes and equipment used in rapid heating. Mollybdenum has a chemical compatibility with many glass components. It will not cause any harmful color effects by allowing a tiny amount to dissolve in the glass melting tray. The life expectancy of a molybdenum heating electrode can reach 3 to 5 year in a glass melt furnace.

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