silicon nitride bonded silicon carbide brick is made of high-purity silicon carbide and mineral additives fired in a nitrogen atmosphere. In addition, Kerui Refractory is a trusted manufacturer of silicon carbon nitride brick. They offer various shapes and sizes as per your requirements.
Silicon nitride bonded silicon carbide brick is a high-grade refractory brick. Moreover, its main raw material is silicon carbide and the binding phase is Si3N4. It inherits many of the excellent properties of nitride and SiC. For example, it has high high temperature strength, large thermal conductivity, small linear expansion coefficient, good thermal shock resistance, great alkali corrosion resistance, good oxidation resistance and strong corrosion resistance. Besides, it also has the advantages of resistance to zinc, copper and aluminum corrosion and good high temperature wear resistance. So, we widely use reaction bonded silicon nitride bricks in steel, non-ferrous metallurgy, ceramics and other industries.
| Item | Index | |
|---|---|---|
| SiC, % | ≥ | 72 |
| Si3N4, % | ≥ | 21 |
| Fe2O3, % | ≤ | 0.5 |
| Apparent Porosity, % | ≤ | 18 |
| Bulk Density, g/cm³ | ≥ | 2.65 |
| Cold Crushing Strength, MPa | ≥ | 150 |
| Modulus of Rupture, MPa | ≥ | 40 |
Silicon carbide has a maximum density of about 3.21 g/cm³ and is highly resistant to acid and alkali corrosion. Moreover, its melting point is relatively high, about 2700°C(4892℉). In addition, its hardness is close to diamond and it is a super-hard material. So, we use it for applications that require special hardness and are highly corrosive. Such as ceramic cutting tools, optoelectronic devices and refining furnaces.
Silicon nitride has a smaller density of about 3.17 g/cm³ and a melting point of about 1900°C(3452℉). Moreover, silicon nitride is relatively stable at high temperatures and is not easily oxidized. Therefore, silicon nitride is more suitable for industrial equipment with a combination of thermal shock resistance. Such as turbine blades, piston rings, combustion chambers and heat exchangers.
Silicon nitride bonded silicon carbide bricks are heat resistant bricks with excellent heat resistance and chemical stability. We mainly use it for the lining, furnace, furnace bottom and other parts of high-temperature industrial equipment. Below are some industrial equipment suitable for silicon nitride bonded silicon carbide bricks.
In the aluminum electrolysis industry, silicon nitride bonded silicon carbide bricks are used as lining materials for electrolytic cells. It has good corrosion resistance and conductive properties. Therefore, it can provide good electrolysis effects while withstanding high temperatures and chemical attacks.
We can also use silicon nitride bonded silicon carbide bricks for glass melting furnaces. During the glass manufacturing process, furnaces need to withstand thermal stress and erosion. However, the use of silicon nitride combined with silicon carbide bricks protects the structural stability of the furnace.
We can also see it in other high-temperature industrial equipment. Such as steel-making furnaces, iron-making furnaces, ceramic kiln furniture, blast furnaces tuyere cooling pipe sleeves and high-temperature pipes. Besides, specific usage may vary depending on the requirements of different equipment. You can contact us to get free technical solutions.
Kerui offers versatile refractory bricks to meet a variety of industrial needs. No matter what industrial equipment you need, Kerui can provide suitable refractory brick solutions. In addition, Kerui refractory fire bricks provide excellent performance and reliable fire resistance. Therefore, this makes Kerui one of the preferred suppliers for customers.
They understand the importance customers place on product quality. Therefore, Kerui is willing to provide samples for customers to inspect and test. This means customers can get samples for inspection and confirmation before purchasing. That is, they focus on customer needs and ensure that the refractory bricks selected meet their requirements.
Kerui has complete supporting facilities, including advanced production equipment and laboratory facilities. So, they focus on technological innovation and quality control. Through advanced equipment and strict testing methods, they can ensure product consistency. If you want to buy high-quality refractory bricks, Kerui will be a good choice.
They also focus on supply chain management and logistics operations to ensure that customer orders are delivered on time. This is very important to customers. Timely delivery can ensure the smooth progress of the project and avoid unnecessary delays and cost increases. Besides, if you want to know more about Kerui, you can follow them on YouTube.
Are you looking for high performance silicon nitride bonded silicon carbide bricks? Do you want to get the most out of your project? Fortunately, these Kerui can satisfy you. So, leave your contact information and we will bring you a considerate and comprehensive purchasing experience.