Name: Zirconium Carbide Powder (ZrC)
Brand: Xi'an Zhiyue Material Tech. Co., Ltd.

Product Specifications

Product Name: Zirconium Carbide Powder
Chemical Formula: ZrC
CAS Number: 12070-14-3
Purity Levels: 99.5%, 99.9%
Particle Size Options: 1–5 µm,<10 µm, nano (<100 nm), custom mesh sizes
Appearance: Gray-black powder
Crystal Structure: Cubic (NaCl-type structure)
Melting Point: ~3530 °C
Density: 6.73 g/cm³
Packaging: Double-layer vacuum packaging or argon-filled containers

Key Advantages of Zhiyue’s Zirconium Carbide Powder

Property	Technical Benefit
Ultra-High Melting Point (~3530 °C)	Suitable for thermal protection systems, nozzles, and hypersonic flight components.
High Hardness (~25 GPa)	Ideal for tool coatings, wear-resistant surfaces, and structural reinforcements.
Good Electrical and Thermal Conductivity	Enables use in electrode materials and high-temperature electronic applications.
Low Oxidation Rate in Inert Atmosphere	Stable in non-oxidizing environments even above 2000 °C.

Where Is Zirconium Carbide (CAS 12070-14-3) Commonly Used?

ZrC powder plays a critical role in advanced material systems operating in aggressive conditions:

Thermal Protection Systems (TPS)
Used in reentry vehicles, rocket engines, and hypersonic aerospace platforms due to its exceptional thermal shock resistance.
Hard Coating & Surface Engineering
Serves as a base material for plasma-sprayed coatings or PVD films on cutting tools, wear parts, and molds.
Nuclear Fuel Cladding & Control Rods
Investigated as an inert matrix for nuclear fuel due to low neutron absorption and high chemical stability.
High-Temperature Structural Ceramics
Blended with SiC or ZrB₂ to form UHTCs for turbine blades, jet nozzles, or thermal barrier systems.
Electronic & Electrochemical Applications
Utilized in field emission cathodes, electrodes, and thermionic emission systems thanks to its good conductivity.

Products

Zirconium Carbide Powder (ZrC) FAQs

Q

Does ZrC powder oxidize in air? How can oxidation be minimized?
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A

Yes. Zirconium carbide can oxidize, especially at elevated temperatures, which may change surface chemistry and affect sintering or coating performance. To reduce risk, handle the powder in low-humidity conditions, limit air exposure time, and use inert gas or vacuum environments for high-temperature processing whenever possible.
Q

How should Zirconium Carbide powder be stored and handled after opening?
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A

Store ZrC powder in a tightly sealed container in a cool, dry place, away from moisture and reactive chemicals. After opening, it is best to dispense in a dry room or glovebox (if available), then reseal promptly to prevent moisture uptake and contamination that can impact consistency.
Q

Can you provide COA and batch traceability documents for ZrC powder?
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A

Yes. A Certificate of Analysis (COA) and batch/lot identification can typically be provided. If your project has specific impurity limits (e.g., oxygen, nitrogen, iron), please state them at the inquiry stage so the appropriate testing and release criteria can be applied.
Q

What parameters are most important when using ZrC powder for sintering (hot pressing/HIP, etc.)?
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A

Beyond temperature and dwell time, the most critical factors often include powder oxygen/carbon balance, binder/additive selection (to avoid unwanted residues), and atmosphere control (vacuum or high-purity inert gas). For composite systems (e.g., with SiC or ZrB₂), interfacial compatibility and potential side reactions should also be considered.
Q

How do I choose a suitable ZrC powder grade for coating applications?
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A

For coating processes, powder flowability, agglomeration state, and particle-size distribution stability are often key. To recommend the right grade, it helps to know your coating route (e.g., thermal spray, slurry-based coating, powder feedstock preparation) and any requirements for morphology, dispersion behavior, or post-processing.
Q

What safety precautions should be taken when working with Zirconium Carbide powder?
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A

As a fine powder, ZrC should be handled with standard powder safety practices: prevent dust inhalation, use local exhaust ventilation or dust collection, and wear appropriate PPE (mask/respirator, goggles, gloves). Avoid uncontrolled contact with strong oxidizers, and follow local regulations for fine-powder handling and dust management.
Q

Can Zirconium Carbide powder be customized? What information is needed for a quotation?
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A

Customization is often possible. For an accurate quote, please provide your intended application, target particle-size distribution (e.g., D10/D50/D90 or mesh), any critical impurity limits, required quantity, and whether you need third-party inspection or specific documentation/standards.

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E-mail: export@zhiyueltd.com
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