HW NANO is professional manufacturer, supplier and exporter in china for nano powders and nanoparticles. Zirconia powder and zirconia ceramic parts are our feartured products whether from the quality or price.
nano zirconium dioxide,zirconia,ZrO2
Zirconia is non-toxic, tasteless white powder, due to the sintering temperature and stable content of the different additions such as yttrium oxide, it can be divided into monocline, square and cubic phase, soluble in sulfuric acid, hydrofluoric acid, have good dispersion.
Zirconia is a polycrystalline transformation material. In the process of heating and cooling phase change will happen.So pure zirconia is difficult to produce ceramics or refractory product, it must be stabilized by some oxides to reach practical value. there are three kinds of Zirconia crystal morphology,monoclinic zirconia under 1170 ℃, square for 1170-2300 ℃ and cubic for 2300℃-molten state.
Some of the abbreviations used in conjunction with stabilized zirconias are as follow:
YSZ: Yttria stabilized zirconia
PSZ - Partially Stabilized Zirconia
TZP -Tetragonal Zirconia Polycrystal
4YSZ: with 4 mol-% Y2O3 partially Stabilized ZrO2, Yttria Stabilized Zirconia
FSZ - Fully Stabilized Zirconia
8YSZ - with 8 mol-% Y2O3 Fully Stabilized ZrO2
YSZ has a number of applications:
1. For its hardness and chemical inertness (e.g., tooth crowns).
2. As a refractory (e.g., in jet engines).
3. As a thermal barrier coating in gas turbines
4. As an electroceramic due to its ion-conducting properties (e.g., to determine oxygen content in exhaust gases, to measure pH in high-temperature water, in fuel cells).
5. Used in the production of a solid oxide fuel cell (SOFC). YSZ is used as the solid electrolyte, which enables oxygen ion conduction while blocking electronic conduction. In order to achieve sufficient ion conduction, an SOFC with a YSZ electrolyte must be operated at high temperatures (800 °C-1000 °C). While it is advantageous that YSZ retains mechanical robustness at those temperatures, the high temperature necessary is often a disadvantage of SOFCs. The high density of YSZ is also necessary in order to physically separate the gaseous fuel from oxygen, or else the electrochemical system would produce no electrical power.
6. For its hardness and optical properties in monocrystal form, it is used as jewelry.
7. As a material for non-metallic knife blades, produced by Boker and Kyocera companies.
In water-based pastes for do-it-yourself ceramics and cements. These contain microscopic YSZ milled fibers or sub-micrometer particles, often with potassium silicate and zirconium acetate binders (at mildly acidic pH). The cementation occurs on removal of water. The resulting ceramic material is suitable for very high temperature applications.
8. YSZ doped with rare-earth materials can act as a thermographic phosphor and a luminescent material.
9. Historically used for glowing rods in Nernst lamps.
10. As a high precision alignment sleeve for optical fiber connector ferrules.
Our Zirconia nanoparticles is available in a wide range of quantities and specifications to meet your particular industrial or scientific application. For further technical information or pricing on zirconia nanoparticles, please contact us freely. thank you.
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