95-N Type Alumina PCW Fiber
The 95-N type alumina fiber surpasses the 72-M type alumina fiber in terms of service temperature. It is transformed into various forms such as fiberboard and fiber profiled parts, which find applications in high-temperature insulation, aerospace, and other related fields.
Product Introduction
The 95-N type alumina fiber, prepared through the internationally renowned “sol gel” method, is primarily composed of 95% Al₂O₃ and 5% SiO₂. This fiber exhibits outstanding high-temperature stability and chemical stability, surpassing other CHAL fiber products in terms of high temperature resistance.
Product Performance
Excellent High and Low Temperature Resistance
Al2O3 Fibre can withstand service temperatures ranging from 1400℃ to 1800℃. Remarkably, even after being exposed to liquid nitrogen (-196℃) for 24 hours, the fiber’s strength remained unaffected.
Acid and Alkali Resistance
After immersing in a 10% alkali solution for 24 hours, the fiber strength retention rates are as follows: NaOH—40%, KOH—65%, and NH4OH—95%. Similarly, the fiber strength retention rates after soaking in a 10% acid solution for 24 hours are as follows: HCl—96%, H2SO4—95%, HNO3—96%, and H3PO4—95%.
Slag Free Ball
Our fiber is free from shot particles(≥45 μm). This absence of shot particles has contributed to an improvement in fiber strength. Additionally, the thermal insulation and fire resistance of the fiber are inversely proportional to the shot content. In other words, the lower the shot content, the higher the thermal insulation and fire resistance properties of the fiber.
Excellent Electrical Insulation
The electrical resistance of alumina fiber shows a decline as the temperature rises. Once the temperature surpasses 600℃, the resistance tends to remain relatively stable. Moreover, the dielectric constant and dielectric loss of alumina fiber exhibit consistent values at high temperatures, making it a suitable material for high-temperature wave transmission applications.
Excellent Flexibility
Excellent flexibility: The fiber demonstrates remarkable flexibility, making it highly resistant to breakage during the acupuncture process. It is an exceptionally well-suited product for acupuncture procedures.
Strong Design
Through the adjustment of chemical composition and heat treatment processes, it is possible to obtain products with diverse properties that can cater to various application requirements.
Technical Parameter
|
Product Type |
Type 95-N |
|
|
Chemical Composition Al2O3:SiO2 (%) |
>95:<5 |
|
|
Mineral Structure |
α |
|
|
Classification Temperature (℃) |
1800 |
|
|
Molten Point (℃) |
>2000 |
|
|
Density (g/cm3) |
3.4 |
|
|
Average Fibre Diameter (μm) |
3 – 6 |
|
|
Length (cm) |
1-10 |
|
|
Shot Content (%) |
≥45μm |
0.2 |
|
Impurity (%) |
<0.5 |
|
|
Tensile Strength (MPa) |
– |
|
|
Modulus of Elasticity (GPa) |
– |
|
|
Slip casting during 1h (%) |
1500℃下≤2 |
|
Typical Applications
The 95-N type alumina fiber surpasses the 72-M type alumina fiber in terms of service temperature. It is processed into various forms such as fiberboard and fiber-profiled parts, which find applications in high-temperature insulation, aerospace, and other fields.
Order Process of 95-N Type Alumina PCW Fiber
