Zirconia Fiber
Category:
Features/Benefits:
Product Details
◆ Overview:
Polycrystalline zirconia fiber is a kind of high temperature resistant fiber prepared by sol-gel method. The purity of zirconia fiber (ZrO2+ phase stabilizer) ≥ 99.5%, is currently the only lightweight polycrystalline refractory fiber material that can meet the requirements of long-term use in ultra-high temperature oxidizing atmosphere above 1600 °C. The product has a high melting point of 2713 ℃, high operating temperature, good thermal insulation performance, stable chemical properties at high temperature, corrosion resistance, oxidation resistance, good thermal shock resistance, non-volatile, non-polluting and other excellent characteristics. It has broad application prospects in the field of military cutting-edge technology and civilian industry.
◆ Product performance advantages:
① Use the highest temperature. The maximum use temperature is 2200°C, and the complete fiber shape can be maintained even up to 2500°C.
②The thermal insulation performance is the best. ZrO2 has the lowest thermal conductivity of all metal oxides.
③The best corrosion resistance. The acid and alkali corrosion resistance of ZrO2 is much stronger than that of Al2O3 and SiO2.
④It is not volatile and pollution-free at high temperature. ZrO2 has the lowest high-temperature vapor pressure among all metal oxides, and is chemically inert. It is not easily volatile and pollution-free at high temperature.
◆ Product application prospects:
① As ultra-high temperature thermal insulation composite materials, protective materials, ablation materials and satellite battery diaphragm materials, etc., it is used in key fields such as aerospace, military defense, and atomic energy.
②As a furnace lining material for ultra-high temperature industrial electric furnaces, ultra-high temperature gas furnaces, ultra-high temperature experimental electric furnaces and other ultra-high temperature heating devices above 1700℃ to 2000℃, it not only has excellent thermal insulation performance, but also can meet the requirements of rapid temperature rise and fall, and is widely used It is used in many fields such as ceramic sintering, crystal growth, ultra-high temperature decomposition, metal smelting, petroleum cracking, high temperature heat treatment of materials, scientific research and experiments.
③It can be compounded with many metals, alloys and glasses to prepare super-strength metal-matrix composite materials used in a wide temperature range.
④As high temperature filter material, high temperature reaction catalyst carrier and automobile exhaust gas purification carrier, etc. It is used for filtration and impurity removal of liquid or gas at high temperature, as well as synthesis or cracking catalysis of high temperature chemical reaction.
◆ Performance Indicators:
|
Product grade |
zirconia fiber |
|
Chemical composition |
tetragonal or cubic, ZrO2+Y2O3 ≥ 99% |
|
Fiber microstructure |
polycrystalline structure |
|
Fiber appearance |
white cotton |
|
Fiber length |
30~150mm |
|
fiber average diameter µm |
3-7 |
|
Fiber strength |
Soft and flexible, can be bent and wound arbitrarily |
|
Long-term use temperature ℃ |
1600-2000 |
|
thermal conductivity w·(m·K)-1 |
1000℃ 0.09 |
|
bulk density Kg/m³ |
80-150 |
|
Ball content (>0.212mm), % |
≤ 1 |
◆ Production process:
The manual does not provide pictures of the process and equipment (technical confidentiality)
◆ Product application range:
This product is widely used in industrial equipment fields such as chips, silicon carbide, aerospace, and military industries.
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