Kela Materials develop a special grade Nano Zirconia (ZrO₂), a white powder ceramic material with a molecular weight of 123.22 and a very high melting point (around 2397 °C). It has high hardness, excellent wear resistance and chemical stability. At room temperature zirconia is an excellent electrical insulator, while at elevated temperatures it exhibits good ionic and electronic conductivity.
Kela nano zirconia is engineered using a dual-crystal-phase (Magneli-type) structure to significantly improve dielectric strength and flexural strength. Compared with conventional zirconia powders, this material offers higher fracture toughness and better resistance to chipping and cracking, making it especially suitable for premium jewelry, high-end watch cases and bezels, as well as luxury 3C product housings and buttons.
Nano Zirconia (ZrO₂) – High-Strength Ceramic Powder for Jewelry, Watches and 3C Products
Introduction
What is Nano Zirconia?
Nano Zirconia (ZrO₂) is a high-performance white ceramic powder featuring high hardness, excellent wear resistance and strong chemical stability.
Key Performance Advantages
It behaves as an electrical insulator at room temperature and shows good conductivity at elevated temperatures, with high dielectric strength and flexural strength when engineered in dual-crystal structures.
Product Features
Mechanical and Thermal Properties
Very high melting point and hardness
High fracture toughness and resistance to chipping and cracking
Excellent wear and scratch resistance
Electrical and Chemical Properties
Electrical insulator at room temperature
Good ionic/electronic conductivity at high temperature
Strong chemical and corrosion resistance
Application Fields
Luxury and Consumer Products
Jewelry, high-end watch cases and bezels
Premium 3C product housings and wearable shells
Technical Ceramics
Structural parts, bearings, seals and wear-resistant components
Insulating and high-temperature parts in electronics
Nano Zirconia (ZrO₂) Powder
High-purity nano Zirconia (ZrO₂) powder with high hardness, excellent wear resistance and strong
dielectric and flexural strength, engineered for high-end jewelry, watch components and premium 3C housings.
• White nano-ceramic powder with high purity and narrow particle-size distribution
• Very high melting point and hardness, excellent wear and scratch resistance
• Electrical insulator at room temperature, with good conductivity at elevated temperature
• Dual-crystal (Magneli-type) structure improving dielectric strength and flexural strength
• High fracture toughness and resistance to chipping, cracking and thermal shock
• Outstanding chemical stability and corrosion resistance in harsh environments
• Smooth surface finish and high gloss after sintering or polishing
• Suitable for high-end aesthetic and functional ceramic components
FAQ – Nano Zirconia (ZrO₂)
1. What is Nano Zirconia used for?
Nano Zirconia is used in high-end jewelry, watch components, premium 3C housings and structural ceramic parts that demand high hardness, toughness and aesthetics.
2. Why choose Nano Zirconia instead of traditional ceramics?
Compared with conventional ceramics, Nano Zirconia offers higher fracture toughness, better resistance to chipping and cracking, and a smoother, glossier surface after polishing.
3. Is Nano Zirconia electrically insulating?
Yes. Zirconia is an excellent electrical insulator at room temperature, while at higher temperatures it shows good ionic and electronic conductivity.
4. How does Kela’s Nano Zirconia differ from standard grades?
Kela Materials uses a dual-crystal (Magneli-type) structure to significantly improve dielectric strength and flexural strength, making it better suited for demanding luxury and technical applications.
5. What processing methods are compatible with this powder?
Nano Zirconia can be used in conventional ceramic forming and sintering processes, including pressing, injection molding, tape casting and CNC machining after sintering.
What is Nano Zirconia used for?
Nano Zirconia is used for high-end jewelry, watch components, premium 3C housings and technical ceramic parts
requiring high hardness and toughness.
Why choose Nano Zirconia instead of traditional ceramics?
Nano Zirconia offers higher fracture toughness, better resistance to chipping and cracking, and a smoother
high-gloss surface finish compared with many traditional ceramic materials.
Is Nano Zirconia electrically insulating?
Yes. Zirconia is an excellent electrical insulator at room temperature and can become conductive at elevated
temperatures, which is useful in certain high-temperature applications.
Application area
• High-end jewelry components (rings, bracelets, decorative parts)
• Premium watch cases, bezels and straps
• Luxury 3C product housings, phone frames and wearable-device shells
• Structural and functional ceramic parts requiring high toughness
• Precision ceramic bearings, seals and wear-resistant components
• High-temperature and insulating parts in electronics and electrical equipment