PRODUCT DESCRIPTION

Introduction

Silicon nitride bonded silicon carbide brick is a high-performance non-oxide refractory material. It adopts SiC particles as the main skeleton, with silicon powder as raw material, and is sintered in nitrogen atmosphere. In-situ formed silicon oxynitride acts as the bonding phase to connect SiC grains tightly. It is widely used for high-temperature industrial furnace linings.

Features

High-Temperature Structural Stability: The continuous Si₂ON₂ ceramic bonding network endows the brick excellent hot strength retention and low high-temperature creep. It effectively resists high-temperature abrasion, flue gas scouring and thermal structural deformation under long-term thermal load.

Excellent Thermal Shock Resistance: Low thermal expansion coefficient and matched thermal conductivity suppress crack initiation and propagation under rapid temperature cycling. The material maintains intact structure with superior anti-spalling performance during frequent furnace operation.

Superior Chemical Stability: The oxynitride matrix possesses high chemical inertness. It provides excellent resistance against high-temperature oxidation, CO corrosion, alkaline slag penetration and molten non-ferrous metal infiltration in harsh service environments.

Applications

Blast furnace lining, iron runners, heating furnace components, continuous casting accessories.

   TECHNIQUE DATA

Si₃N₄ Bonded SiC Brick