Insulating zirconia ceramic rods for resistors

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Insulating zirconia ceramic rods for resistors

Insulating zirconia ceramic rods for resistors

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Insulating zirconia ceramic rods for resistors

Product Description

   Insulating zirconia ceramic rods for resistors, Zirconia ceramic are used in shaft, plunger, sealing structure, auto mobile industrial, oil drilling equipment, insulation parts in electrical equipment, ceramic knife, ceramic hair clipper spare parts, with high density, bending strength and breaking tenacity.

Feature:

  1. Use temperature up 2400°C
  2. High density
  3. High hardness
  4. Lower thermal conductivity
  5. Chemical inertness
  6. Resistance to molten melten metals
  7. Good wear resistance
  8. High fracture toughness

Datasheet of Technical ceramics

PropertyUnitsMaterial
99.5%
alumina		99%
alumina		95%
alumina		ZrO2
(Y-TZP)		ZrO2
(TTZ)
Densityg/cm3≥3.85≥3.80≥3.60≥5.95≥5.72
Water absorption%00000
HardnessHV1700170015001300900
Flexural strengthMpa≥379≥338≥320≥1200≥1200
Compressive strengthMpa≥2240≥2240≥2000≥19901750
Fracture toughnessMpa m1/24-54-53-46.5-811
Max. service
temperature		ºC1675160014501000
CTE1×10 -6 /ºC6.5~8.06.2~8.05.0~8.08.0~9.510.2
Thermal shockT(ºC)≥250≥200≥220≥300350
Thermal conductivity(25ºC)W/m.k30292433
Volume resistivityohm.cm
25ºC>1 x 10 14>1 x 10 14>1 x 10 14>1 x 10 11>1 x 10 11
300ºC1 x 10 128 x 10 1110 12 -10 131 x 10 101 x 10 10
500ºC5 x 10 102 x 10 91 x 10 91 x 10 61 x 10 6
Insulation strengthKV/mm1918181720
Dielectric constant(1Mhz)(E)9.79.59.52928

We can supply the products according to customer’s drawings, samples and performance requirement.

The description of zirconia ceramic parts
Zirconia ceramic parts are made of zirconium oxide ceramics which is a kind of strongest technical ceramic material with exceptional strength, high toughness, and superb reliability. These outstanding characteristics result in excellent resistance to wear and corrosion.

We have been offering a selection of partially stabilized zirconia, including Y-TZP( yttria-stabilized), MSZ ( magnesia stabilized ), CSZ- (ceria stabilized). Each stabilized zirconia provides unique and specific properties that meet the demands of extreme applications found in many industries.

With our production capability through CNC, precision grinding machines,  we are able to provide many different level precision zirconia ceramic parts to meet customers’ high precision assembly needs.

The main features of zirconia ceramic parts
1.High density:  over 6 g/cm3, which makes it the densest body of the ceramic products
2.High hardness: over 9 on Mohs scale, diamond being 10, with a satin-smooth surface finish
3.High toughness: over 1200 MPa, approx. 4 times in comparison with 95% alumina
4. Excellent wear resistance, it’s much better than aluminum oxide ceramics with a longer life cycle
5. Low thermal conductivity:  less than 3 W/m.k at ambient temperature, so it’s an ideal thermal material
6. Good chemical and corrosion resistance, it’s equivalent to above 99% alumina

Insulating zirconia ceramic rods for resistors

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