Ceramic Balls

Fine ceramic has superior mechanical, thermal, magnetic, chemical, and insulative characteristics such as light weight, extreme hardness, high temperature strength, high friction strength, high corrosion resistance. They are used in a wide variety of areas including mechanical equipment, electrical parts, medical parts, aerospace and atomic parts.   ceramic-p013.jpg

Types and Characteristics of Ceramic Balls

ceramic-p02.jpg Almina balls (AI2O3)
Popular fine ceramic which has high electric insulation, strength under regular temperature and is corrosion resistant.
ceramic-p03.jpg Zirconia balls (ZrO2)
Zircona has a high melting point, is chemically stable and has low heat conductivity.
ceramic-p04.jpg
Silicon Nitride balls (Si3N4)
Silicon Nitride has a low thermal expansion coefficient and is excellent at bending strength, fracture toughness and heat impact resistance.
ceramic-p05.jpg Silicon Carbide balls (SiC)
Silicon Carbide has a low declining mechanical strength under high temperature (more than 1000℃) and high friction resistance.
We believe that the fine ceramic balls will respond to the customer's expectation as a mechanical component of the new age.
Table: Characteristics of Ceramics Materials (Generic Data)
Item/Form Oxide Non-Oxide
Almina Zirconia Silicon Nitride Silicon Carbide
AI2O3 ZrO2 Si34 SiC
Density g/cmm3 3.60 - 3.90 6.00 - 6.08 3.22 - 3.35 3.10 - 3.15
Thermal Expansion Coefficient deg-1 7 - 8 8 - 12 3.2 - 3.6 4 - 5
Thermal Conductivity W/(m•deg) 17 -25 2 - 4 17 - 29 40 - 80
Elastic Coefficient x105MPa 3.0 - 3.8 2 2.3 - 2.7 3.7 - 3.8
Bending Strength MPa RT 340 - 780 780 - 1470 490 - 980 590 - 980
Compressive Strength MPa 1960 - 2940 3920 1960 - 3920 -
Hardness HV 2000 - 2100 1300 - 1500 1600 - 2100 2000 - 2500
Operational Temperature °C 1700 2000 1200 1400