Ceramic rods for the production of resistors (Al2O3) aluminum oxide

ceramic rods

Main Specifications

  • Type: ceramic rods
  • Size: according to customer drawings
  • Material: Al2O3 aluminum oxide (96-99,7%)
  • Color: White or Ivory
  • Maximum operating temperature: 1700
  • Features: High mechanical strength, good thermal conductivity.

Item

Unit symbol

95% Alumina Ceramics

99% Alumina Ceramics

99.7% Alumina Ceramics

Maximum Using Temperature

1600

1700

1700

Water absorption

%

0

0

0

hardness

Gpa

85

89

89

Flexural strength

MPa (psi x 103)

336

550

550

Compressive Strength

MPa (psi x 103)

2000

2500

2500

Fracture toughness

Mpa 

4 ~ 5

5.6

6

Thermal conductivity

W / m ° K

18-25

30

30.4

Thermal shock resistance

° C

220

180-220

180-220

Dielectricity constant

 

9.4

9.8

9.8

Dielectric strength

kV / mm

16

22

22