Zirconia ceramics are resistant to high temperature, high strength, super hardness, wear resistance, corrosion resistance, can be polished and have a beautiful appearance, and have a low cost. It is an excellent wearable material. In recent years, it has also been widely used in smart wear.
As a smart wear material, the advantages of zirconia ceramics are:
1. High hardness and wear resistance
From the hardness point of view of zirconia ceramics, the Mohs hardness of zirconia ceramics is about 8.5, which is very close to the Mohs hardness of sapphire 9. It has higher hardness than metals and glass used in daily life, and it is not easy to produce scratches or wear marks. Compared with anode and PVD, it overcomes uncomfortable problems such as stripping, fading and abrasion, and has comparative advantages.
2. Skin-friendly, non-allergic
Steel watches contain nickel and other substances. The chemical components (salt ions) in the sweat will make these metal elements on the watch case more active (ionized) and cause skin abnormalities. The ceramic material will not have metal ions precipitated, and due to its low thermal conductivity, it is not easy to cause allergies when worn, and it is more skin-friendly compared with metals and plastics, has good compatibility with the human body, and is not easy to produce bacteria.
3. Good heat dissipation and heat dissipation
It has good heat dissipation and heat uniformity, which effectively solves the heat conduction problem of equipment and is the best solution for heat dissipation.
4. Jade texture, warm color
Ceramics have the color and texture of jade, which can be artificially adjusted by adding rare earth elements to make the color changeable and beautiful, which can enhance the product quality and consumer appeal. Zirconium oxide has a jade-like texture after polishing. It is a high-end decorative material second only to gems and has a visual beauty.
5. Unshielded signal
The dielectric constant is 3 times that of sapphire, the signal is more sensitive, electrically insulated, wireless charging can be realized, no signal shielding, and support for smart device positioning, telephone, payment, and subway meter reading signal functions.
6. Suitable for mass production and low cost
The key technology for the localization of nano-powders has been broken through to meet the mass production of ceramics. The mass production molding methods include dry pressing, injection, casting, gel injection molding, etc., and the production cost is low.
