Silicon nitride is a material characterized by a strong covalent bond structure, showcasing outstanding comprehensive properties across a temperature range of -200C to 1600°C. These remarkable properties encompass high strength, hardness, high thermal conductivity, high temperature resistance, wear resistance, corrosion resistance, oxidation resistance, good fracture toughness, exceptional thermal and mechanical shock resistance, and more. Such a combination of attributes distinguishes silicon nitride as the unparalleled "all-around champion"in the realm of ceramic materials.
The CF-K powder manufactured by our company is utilized as the primary material for producing silicon nitride ceramic structural components. CF-K selects high-purity silicon powder as its raw material and undergoes a direct nitriding process.This particular product offers several advantages including a high a phase content, a narrow particle size distribution, and excellent sintering activity. It is well-suited for various applications and processes involving silicon nitride ceramics.
|
Test item |
Unit |
Index range |
Testing equipment or method |
|
α phase |
% |
≥20 |
X-ray diffractometer JC/T 2342-2015 |
|
Fe |
ppm |
≤5000 |
Atomic absorption method ISO10058-3:2008 |
|
Al |
ppm |
≤2500 |
|
|
Ca |
ppm |
≤2500 |
|
|
N |
% |
≥38 |
Kjeldahl nitrogen apparatus GB/T 16555-2017 |
|
C |
% |
≤0.15 |
High frequmency infrared carbon analyzer GB/T 16555-2017 |
|
D50 |
μm |
5-10 |
Laser particle size analyzer GB/T19077-2016 |
|
O |
% |
≤1.0 |
Inert gas pulse infrared thermal conductivity method GB/T 16555-2017 |
