Introduction of Zirconia Nozzles

Zirconia nozzles are high-performance nozzles made of zirconia (ZrO₂) ceramic material with excellent resistance to high temperatures, corrosion, and wear. Zirconia is an advanced ceramic material that is often enhanced by the addition of stabilizers, such as yttrium oxide, to increase its mechanical strength and thermal stability. Zirconia nozzles are widely used in industries that need to withstand extreme environments, such as high-temperature spraying, metalworking, and chemical processing.

Features of Zirconia Nozzles

High heat resistance: zirconium oxide has a melting point of 2700°C, which can maintain stable performance in high temperature environments, making it suitable for high temperature spraying and molten metal processing.

Excellent abrasion resistance: zirconium oxide has high hardness and can resist particle scouring and abrasion, prolonging the service life of the nozzle.

Chemical stability: excellent resistance to acids, alkalis, and other corrosive media, suitable for use in corrosive environments.

Low thermal conductivity: zirconia has a low thermal conductivity, which can effectively insulate and reduce heat loss.

High strength and toughness: through stabilization, zirconia nozzles have high mechanical strength and impact resistance.

Precision machining performance: zirconia nozzles can be precision machined into complex shapes to meet the needs of high-precision applications.

Parameters of Zirconia Nozzles

Specification	Description
Material Composition	ZrO2 with stabilizers (e.g., Yttria, Magnesia)
Purity (%)	Typically 95% to 99.95%, depending on grade
Density (g/cm³)	Approximately 5.60 to 6.10 g/cm³
Melting Point (°C)	~2700°C
Max Service Temperature (°C)	Up to 2200°C in oxidizing atmospheres
Thermal Conductivity (W/m·K)	Low, around 1.5 to 3.5 W/m·K at room temperature
Coefficient of Thermal Expansion (CTE) (10^-6/K)	~10.5 at room temperature
Chemical Resistance	Excellent resistance to acids, bases, and molten metals
Electrical Resistivity (Ω·cm)	High, >10^12 Ω·cm at room temperature
Surface Finish (Ra µm)	Can range from rough (<50 µm) to highly polished (<0.1 µm)
Tolerance (mm)	Usually ±0.1 mm for dimensions, depending on size and application requirements
Nozzle Diameter (mm)	Available in various sizes, from small diameters (a few millimeters) to larger ones
Nozzle Length (mm)	Varies based on design and application needs
Wall Thickness (mm)	Typically ranges from 1 to 3 mm
Shape	Various shapes including straight, tapered, or custom designs
Fracture Toughness (MPa·m^½)	Around 7 to 12 MPa·m^½
Flexural Strength (MPa)	Can range from 800 to 1200 MPa at room temperature
Porosity (%)	Very low, typically less than 1%
Oxygen Ion Conductivity (S/cm)	Significant at high temperatures (>800°C)

Applications of Zirconia Nozzles

Thermal spraying: Used in plasma and flame spraying equipment, they can withstand high temperatures and high-speed particle impacts to provide uniform coating results. Used in the aerospace, automotive and energy industries for spraying wear, corrosion and insulation coatings.

Metalworking: nozzles used in metal melting and casting processes to withstand high temperatures of molten metal. In continuous casting and injection molding processes, zirconia nozzles are used to control the flow and shaping of the liquid metal.

Chemical industry: used for spraying and atomizing corrosive liquids or gases, such as pickling, alkaline washing, and exhaust gas treatment equipment. Used as corrosion-resistant nozzle components in chemical reactors.

Environmental protection and energy: Used as nozzles in flue gas desulfurization (FGD) systems, resistant to corrosive gases and liquids. Nozzle components for high temperature and corrosion resistance in fuel cells and electrolyzers.

3D Printing & Additive Manufacturing: In metal 3D printing equipment, zirconia nozzles are used to precisely control the injection and fusion of metal powders. In ceramic 3D printing, zirconia nozzles are used for high-precision material deposition.

Laboratory and scientific research: nozzles for high-temperature experimental equipment, such as high-temperature reactors and injection devices. In materials research for the preparation of high-performance coatings and composites.

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.

If you are looking for high-quality Zirconia Nozzles please feel free to contact us or click on the needed products to send an inquiry. 

Payment Term

T/T, Western Union, Paypal, Credit Card etc.

Packing and Storage

The product is in powder form and should be stored in a cool, ventilated place. Avoid inhalation when using it and keep away from open flames, heat sources, etc.

Shipment Term

By air, by sea, by express, as customers request.

FAQs of Zirconia Nozzles

Question 1: What industries are zirconia nozzles used in?

Answer: Zirconia nozzles are widely used in a number of industries due to their excellent performance, including but not limited to metallurgy, chemical industry, ceramics manufacturing, glass production, food processing and pharmaceuticals. They are especially used in equipment that operates in high temperature or corrosive environments, such as sandblasting machines, spraying devices, and reactors.

Question 2: What are the advantages of zirconia nozzles over other materials?

Answer: Compared with traditional nozzles made of metal or other ceramic materials, zirconia nozzles have higher hardness, better abrasion resistance and chemical erosion resistance. It also has excellent thermal shock stability and low thermal conductivity, which allows it to maintain structural integrity and reduce heat loss even under extreme temperature changes.

Question 3: Are zirconia nozzles prone to breakage?

Answer: Although zirconia is a very hard and wear-resistant material, it is not completely indestructible. Improper handling (e.g., sudden temperature changes or physical shocks) can cause a nozzle to crack or break. However, its toughness and resistance to fracture can be greatly enhanced by choosing the right material grade (e.g., partially stabilized zirconia PSZ or tetragonal phase zirconia TZP).

Question 4: How can I extend the life of my zirconia nozzles?

Answer: To maximize the service life of zirconia nozzles, ensure proper installation and use. Avoid subjecting the nozzle to operating conditions that exceed design specifications, such as excessive pressure or temperature. Regular maintenance inspections are also key, with timely cleaning of any buildup inside the nozzle to prevent clogging, as well as careful monitoring of the working environment for any potentially damaging elements. It is also important to use reliable quality parts when replacing or repairing.

Question 5: What factors affect the price of zirconia nozzles?

Answer: The cost of zirconia nozzles is affected by a number of factors, including, but not limited to, the cost of raw materials, the complexity of the manufacturing process, the degree of size and shape customization, and additional features such as special surface treatments. The level of product quality and service offered by different suppliers is also reflected in the price. In general, higher grades of zirconia materials (e.g., high purity, fully dense) will be more expensive than common grades but also offer better performance characteristics. Therefore, when choosing a zirconia nozzle, you need to consider your budget and actual needs to make the optimal choice.