China Calcium-Stabilized Zirconia Powder Suppliers and Factory in China: Features, Uses, and Benefits Manufacturer, Suppliers

Calcium-stabilized zirconia powder is a high-performance advanced ceramic material produced by our factory in China. Utilizing calcium oxide (CaO) as a stabilizing agent, this innovative material transforms zirconium dioxide (ZrO₂) into a stable cubic crystal structure. This unique stabilization prevents phase transformation during temperature variations, significantly enhancing thermal stability, mechanical strength, and resistance to thermal shock. As a trusted supplier of calcium-stabilized zirconia, we guarantee that our product excels in refractory performance and reliable ionic conductivity, ensuring stable functionality even in the most demanding environments

Product Description

Product Classification|Ca-PSZ Grades Overview

Ceramic Grade

High-Strength Thermal Ceramic Materials

Ca-PSZ for ceramics grade

With special production process, we can produce different Ca-PSZ powder by adjusting the content of CaO. With high strength, tenacity and good performance of thermal shock, our Ca-PSZ powder is the ideal material to make the thermal ceramics.

Refractory Grade

Electro-Melted Zirconia for High-Temperature Use

Ca-PSZ powder for refractory grade

The refractory grade Ca-PSZ powder, produced by electric melting quenching process can be broken into different varieties.

It is used to produce various zirconia ceramics and refractory products, mainly used for electronic burning plate, sizing nozzle, sliding plate, invasive nozzle, zirconia products and special kiln furniture.

Calcium-Stabilized Zirconia Features and Uses (1) Calcium-Stabilized Zirconia Features and Uses (2)

Performance Advantages|Durability Under Extreme Thermal Conditions

Thanks to its high melting point and strong resistance to corrosion and thermal stress, calcium-stabilized zirconia powder is widely used in applications that require long-term durability under elevated temperatures. It is commonly applied in advanced refractory materials, solid oxide fuel cells, oxygen sensors, and thermal barrier coatings, where materials must withstand continuous thermal cycling and aggressive chemical conditions without degradation.

Applications

Energy Applications|Solid Oxide Fuel Cell Electrolytes

One of the most important applications of calcium-stabilized zirconia powder is in solid oxide fuel cells (SOFCs). Its high ionic conductivity at elevated operating temperatures makes it an ideal choice for the electrolyte layer. The material allows oxygen ions to migrate efficiently through the cell, enabling stable and efficient electricity generation. At the same time, its mechanical robustness and structural stability ensure reliable operation under prolonged high-temperature conditions.

Sensing Technologies|Oxygen Sensors for Combustion Control

Another key application is in oxygen sensors, particularly those used in automotive exhaust systems and industrial process control. Calcium-stabilized zirconia serves as the core sensing material due to its ability to conduct oxygen ions at high temperatures. By accurately detecting oxygen concentration in exhaust gases or furnace atmospheres, these sensors enable precise combustion control, improving fuel efficiency while reducing harmful emissions.

High-Temperature Engineering|Advanced Refractory Applications

In addition, calcium-stabilized zirconia powder plays a critical role in advanced refractory applications. It is widely used in high-performance refractory linings for furnaces, kilns, and other high-temperature equipment. Its exceptional resistance to thermal shock, corrosion, and chemical attack ensures long service life and operational reliability in extreme environments, such as those found in the steel, glass, and metallurgical industries.

Ca-PSZ for Ceramics Grade

With special production process, we can produce different Ca-PSZ powder by adjusting the content of CaO. With high strength, tenacity and good performance of thermal shock, our Ca-PSZ powder is the ideal material to make the thermal ceramics.

Product Code Chemical Composition % Density
(g/cm³)
Ceramic Color Appearance Long-term Service Temperature
ZrO₂ Al₂O₃ SiO₂ CaO Fe₂O₃ TiO₂
FR-3C01 94 0.4 0.1 3.0±0.2 0.01 0.01 5.7 light white Granular material 1200
FR-3C01F 94 0.4 0.1 3.0±0.2 0.01 0.01 5.7 light white Powder material 1200
FR-3C02 94 0.4 0.4 3.5±0.2 0.1 0.2 5.6 earth yellow Granular material 1500
FR-3C02F 93 0.4 0.5 3.5±0.2 0.1 0.2 5.6 earth yellow Powder material 1500
Calcium-Stabilized Zirconia Features and Uses (4) Calcium-Stabilized Zirconia Features and Uses (3)

Ca-PSZ Powder for Refractory Grade

The refractory grade Ca-PSZ powder, produced by electric melting quenching process can be broken into different varieties. It is used to produce various zirconia ceramics and refractory products, mainly used for electronic burning plate, sizing nozzle, sliding plate, invasive nozzle, zirconia products and special kiln furniture.

Product Code Chemical Composition % Stabilization % Particle Size
ZrO₂ CaO SiO₂ Al₂O₃ Fe₂O₃ TiO₂
FR-ECZ01 >94 3–4 ≤0.4 ≤0.4 ≤0.1 ≤0.2 70± Can be adjusted according to technical requirements
FR-ECZ02 >98 <2 ≤0.2 ≤0.2 ≤0.1 ≤0.2 70–80
FR-ECZO3 >94 3–4 ≤0.6 ≤0.4 ≤0.1 ≤0.2 >95 Hollow ball

Frequently Asked Questions (FAQ)

Q What is calcium-stabilized zirconia (Ca-PSZ) and how is it different from other zirconia types?
Calcium-stabilized zirconia (Ca-PSZ) is a form of zirconia (ZrO₂) in which calcium oxide (CaO) is added as a stabilizer to maintain its cubic or partially stabilized tetragonal crystal structure at room temperature. Compared to yttria-stabilized zirconia (YSZ), Ca-PSZ generally offers a cost-effective alternative with good mechanical strength and thermal shock resistance, making it well suited for refractory and ceramic applications.
Q What are the main differences between the ceramic grade and refractory grade Ca-PSZ products?
The ceramic grade Ca-PSZ (e.g., FR-3C01, FR-3C02) is produced using a special manufacturing process with precise CaO content control, resulting in high strength and excellent thermal shock resistance for thermal ceramic applications. The refractory grade Ca-PSZ (e.g., FR-ECZ01, FR-ECZ02) is produced via an electric melting quenching process, yielding higher ZrO₂ purity (up to >98%) and adjustable particle sizes, making it ideal for refractory linings, nozzles, and kiln furniture.
Q What is the maximum long-term service temperature for Ca-PSZ ceramic grade products?
The long-term service temperature varies by product grade. The FR-3C01 and FR-3C01F grades are rated for up to 1200°C, while the FR-3C02 and FR-3C02F grades with a higher CaO content (3.5±0.2%) support long-term service temperatures up to 1500°C, making them suitable for more demanding high-temperature environments.
Q Can the particle size of the refractory grade Ca-PSZ powder be customized?
Yes. For the FR-ECZ01 and FR-ECZ02 refractory grade products, the particle size can be adjusted according to specific technical specifications. The FR-ECZO3 grade is available in a hollow ball form, offering unique properties for specialized refractory applications.
Q In which industries is Ca-PSZ powder most commonly used?
Ca-PSZ powder is widely used across several industries. In the energy sector, it serves as an electrolyte material in solid oxide fuel cells (SOFCs). In the automotive and industrial sectors, it is used in oxygen sensors for combustion control. In heavy industries such as steel, glass, and metallurgy, it is applied in refractory linings, sizing nozzles, sliding plates, invasive nozzles, and special kiln furniture due to its exceptional thermal and chemical resistance.
Q Why is Ca-PSZ preferred for solid oxide fuel cell (SOFC) electrolytes?
Ca-PSZ is preferred for SOFC electrolytes because of its high ionic conductivity at elevated operating temperatures, which allows efficient oxygen ion migration through the electrolyte layer. Combined with its mechanical robustness, structural stability under prolonged thermal cycling, and resistance to chemical degradation, it enables reliable and efficient electricity generation in fuel cell systems.

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