1. The advantages of yttria stabilized zirconia YSZ

Common zirconia stabilizers are usually alkaline earth oxides or rare earth oxides, such as yttrium oxide, cerium oxide, calcium oxide, and magnesium oxide. The essence of these stabilizers to stabilize zirconia is roughly similar, but the performance is different. In application, yttria-doped zirconia has good comprehensive properties, and is also the most widely used solid electrolyte at present; stabilized zirconia doped with cerium oxide has the best conductivity, but its mechanical properties are relatively poor; doped with calcium oxide Stabilized zirconia has better performance than other stabilizers, relatively cheap, but easy to decalcify and destabilize; stabilized zirconia doped with magnesium oxide has general conductivity and low price, but its long-term performance is poor, and it is generally used as a consumable product.

Yttrium oxide is used as a stabilizer, and this material is mainly a tetragonal structure. It has the highest flexural strength of all zirconia materials, especially when sintered and pressed. Yttrium stabilized zirconia has fine grains and is suitable for use in cutting tools due to its high wear resistance. It is used to cut a very sharp corner part. Excellent crystal grains make the produced ceramics dense, without many pores, and have excellent mechanical strength, corrosion resistance, impact toughness, thermal shock resistance and extremely low thermal conductivity. Because of these characteristics, yttrium stabilized zirconia is mainly used in wear-resistant parts, cutting tools and thermal barrier coatings.

2. Examples of typical applications of yttrium stabilized zirconia:

1. Solid oxide fuel cell SOFC
The solid oxide fuel cell is an all-solid chemical power generation device that directly converts the chemical energy stored in the fuel and oxidizer into electrical energy in an efficient and environmentally friendly manner at medium and high temperatures. The anode support in the SOFC system uses SAT NANO YSZ, which is an excellent oxygen ion conductor and is stable in both oxidizing and reducing atmospheres. It is an ideal material for solid oxide fuel cells.

2. Bioceramics, electronic ceramics, structural ceramics
ZRO2-3Y Yttrium-stabilized zirconia for biological dentures has the characteristics of high fracture strength, high fracture toughness, and high light transmittance. Jade has a strong texture, high whiteness, and can match the color of human teeth very well. It is extremely suitable for milling with manual grinders or CAD/CAM equipment.

3. Artificial gems, colorful ceramic jewelry
The hardness of zirconia colored ceramic jewelry is close to natural diamonds, lighter than metal, never wear, never change color, never rust, beautiful and durable, shiny and bright, texture, and visually extraordinary.

4. Refractory materials
Yttria-stabilized zirconia is used as a refractory material, used in electronic ceramic burning supporting backing plates, melting glass, refractory materials for metallurgical metals.

5. Oxygen sensor
The oxygen sensor is a standard configuration on automobiles. It uses ceramic sensitive elements to measure the oxygen potential in the exhaust pipe of the automobile, and calculates the corresponding oxygen concentration based on the principle of chemical balance to monitor and control the combustion air-fuel ratio to ensure product quality and exhaust gas. Emissions up to standard measuring elements. The zirconia element in the sensor acts like an electrolyte.

6. More applications
Wear parts, thermal barrier coatings, optical fibers, ferrules and sleeves, abrasive media