High-temperature Refractory Sintered Zirconia Crucible

PRODUCT PARAMETERS

Zirconia crucibles have a wide range of applications in the fields of material science, metallurgy, electronics, glass, nuclear energy and chemical industry by virtue of their excellent high temperature resistance, corrosion resistance and mechanical properties.
Description
REQUEST A QUOTE

Description

Introduction of Zirconia Crucible

Zirconia crucibles are high-performance ceramic vessels made of zirconium oxide (ZrO₂), which are mainly used in processes such as high-temperature melting, chemical reactions, and material preparation. Zirconium oxide is an advanced ceramic material stabilized (e.g., with the addition of yttrium oxide) with excellent resistance to high temperatures, corrosion, and mechanical properties. Zirconia crucibles are able to maintain stable physical and chemical properties in extreme environments and are important tools in high-temperature experiments and industrial production.

Zirconia Crucible

Features of Zirconia Crucible

High-temperature resistance: zirconium oxide has a melting point of up to 2700°C and can work stably for a long time in high-temperature environments above 1800°C.

Excellent chemical stability: it is extremely corrosion-resistant to acids, alkalis, and most molten metals.

Low thermal conductivity: good thermal insulation, reducing heat loss and improving energy efficiency.

High mechanical strength: stabilized zirconia has high hardness and toughness and can withstand large mechanical stresses.

Thermal shock resistance: able to withstand rapid temperature changes and suitable for frequent heating and cooling conditions.

Low contamination: it will not contaminate the molten material during the high temperature melting process, suitable for the preparation of high purity materials.

Parameters of Zirconia Crucible

SpecificationDescription
Material CompositionZrO2 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 ResistanceExcellent resistance to acids, bases, and molten metals
Electrical Resistivity (Ω·cm)High, >10^12 Ω·cm at room temperature
Surface Finish (Ra µm)May vary; often specified as <0.4 µm for precision applications
Tolerance (mm)Usually ±0.1 mm for dimensions, depending on size and application requirements
Volume Capacity (ml)Available in various sizes, from small capacities (<1 ml) to larger ones (several hundred ml)
Diameter (mm)Can range from a few millimeters to several centimeters
Height (mm)Varies based on capacity and design
Weight (g)Depends on dimensions and wall thickness
Wall Thickness (mm)Typically ranges from 1 to 3 mm
ShapeCommonly cylindrical, but also available in other shapes like boats or dishes
Thermal Shock ResistanceGood, able to withstand rapid heating and cooling
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

Applications of Zirconia Crucible

High-temperature resistance: zirconium oxide has a melting point of up to 2700°C and can work stably for a long time in high-temperature environments above 1800°C.

Excellent chemical stability: it is extremely corrosion-resistant to acids, alkalis, and most molten metals.

Low thermal conductivity: good thermal insulation, reducing heat loss and improving energy efficiency.

High mechanical strength: stabilized zirconia has high hardness and toughness and can withstand large mechanical stresses.

Thermal shock resistance: able to withstand rapid temperature changes and suitable for frequent heating and cooling conditions.

Low contamination: it will not contaminate the molten material during the high temperature melting process, suitable for the preparation of high purity materials.

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 Crucible 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 Crucible

Question 1: What temperature ranges are zirconia crucibles suitable for?

Answer: Zirconia crucibles are able to withstand extremely high temperatures and are typically stable between 1600°C and 2200°C, depending on the type of zirconia material used (e.g. pure zirconia, partially stabilized zirconia PSZ or tetragonal phase zirconia TZP). This high temperature stability makes it ideal for melting metals, glass and other high melting point substances.

Question 2: Are zirconia crucibles resistant to acid and alkali attack?

Answer: Zirconia crucibles are very resistant to most inorganic acids (e.g., hydrochloric acid, sulfuric acid) and lyes, but they may erode in the presence of strong acids such as hydrofluoric acid, as well as certain fluorine-containing compounds. Therefore, specific experimental conditions and the nature of the chemicals being handled need to be considered when choosing which type of crucible to use.

Question 3: How do I properly clean a zirconia crucible?

Answer: In order to maintain the best performance of zirconium oxide crucible and prolong its service life, appropriate cleaning methods should be adopted depending on the residues. Generally, it can be rinsed with distilled water and then cleaned with a mild acid or alkaline cleaning solution as needed. For deposits that are difficult to remove, try heating to the proper temperature before cleaning. Avoid scraping the surface with rough tools to avoid damaging the crucible.

Question 4: Are zirconia crucibles suitable for vacuum environments?

Answer: High-quality zirconia crucibles can be used in a vacuum environment, but the choice of material and manufacturing process should be considered. Some specially treated zirconia crucibles (e.g., sintered or stabilizers added) are better suited for high-temperature applications under vacuum conditions. However, in extreme vacuum conditions, there is still a concern about possible material volatilization, especially at very high temperatures.

Question 5: What are the advantages of zirconia crucibles over other materials?

Answer: The main advantages of zirconia crucibles over other common crucible materials (e.g., quartz, bauxite, platinum, etc.) are their excellent thermal shock stability and higher melting point. In addition, zirconia crucibles exhibit better mechanical strength and wear resistance, which makes them particularly suitable for handling hard or abrasive samples. Moreover, zirconia’s low thermal conductivity effectively reduces heat conduction losses and improves heating efficiency. It also reduces the possibility of chemical interactions with reactants, ensuring the accuracy of experimental results.

REQUEST A QUOTE

REQUEST A QUOTE