non – pressure sintered silicon carbide products and reaction sintered silicon carbide products

The difference between non – pressure sintered silicon carbide products and reaction sintered silicon carbide products

About high temperature sintered silicon carbide products, pressureless sintering and reaction sintering is the current domestic production of silicon carbide ceramics is the most commonly used two kinds of preparation methods, pressureless sintering and reaction sintering are two kinds of technology of sintered silicon carbide products, due to the different firing process, thus the performance of its products is also different. the main highlight the pressureless sintering of silicon carbide technical parameters and technical parameters of reaction bonded SIC is different.

The firing process is different
Reactive sintering allows free silicon to penetrate into silicon carbide at a lower temperature.The non – pressure sintering is at 2100 degrees, natural shrinkage of silicon carbide products.

The technical parameters of sintered products are different
The volume density, hardness and compressive strength of the reaction are different from the technical parameters of unpressed silicon carbide products.

Product performance is different
Reaction sintered products and pressure free products in different PH, temperature and other conditions, the use of time is different.

The product density is different

In general, the compactness of reaction sintered products is between 2.97 and 3.05, and that of unpressed sintered products is between 3.08 and 3.15.