White Ceramic Watch
Specifications
1. High quality with competitive price could be provided.2. High quality quartz Japanese or Chinese movement.
Zirconia ceramic has a series of good properties,such as high strength,good fracture toughness,high density,good abrasion resistance,high hardness and so on.Zirconia ceramics can be used as good abrasive and efficient grinding media.
Main features of ceramic watches ladies:
1.White color ceramic case ladies ceramic watch.
2.ladies ceramic watch with Ceramic&Brass band .
3. Watch case&band: zinrconia ceramic
4. Fast delivery time.
5.Functions: Hour,minute,seconds,date
6.Normal mineral glass
7.2 year battery life.
8.Waterproof.
9. Special watch packing requirement .
10.The most popular watch in 2013,best watch for gifts promotion.
Zirconia material parameter
Item |
Test Condition |
Unit&Symbol |
Zirconia Ceramics |
The main chemical ingredient |
|
|
ZrO2:95% Y2O3:5% |
Bulk Density |
|
g/cm3 |
6 |
Maximum Use Temperature |
|
|
1300°C |
Water absorption |
|
% |
0 |
ROHS Hardness |
|
HRA |
≥83 |
Compressive Strength |
20°C |
Kgf/cm2 |
25000 |
Fracture Toughness |
|
Map.m3/2 |
6-8 |
Coefficient of thermal expansion |
|
/°C |
9.5*10-6 |
Thermal Shock Resistance |
Tc |
°C |
360 |
Volume Resistivity |
20°C |
Ωcm20°C |
≥10 12 |
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