High purity 99.99% Alumina ceramic custom parts By Yongzhou Mingrui Ceramic Technology Co., LTD,
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High purity 99.99% Alumina ceramic custom parts
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High purity 99.99% Alumina ceramic custom parts

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La description

Products Details:
High purity *9.*9% Alumina ceramic custom parts
Description: 
Alumina ceramic, Al2O3 aluminium oxide ceramics is an advance ceramic materials which used for the industry.It has excellent material properties over metal.Aluminum oxide ceramics is very hard and resistant to wear, providing high compressive strength even in extreme temperatures and corrosive environments.Alumina is also an excellent electrical insulator and gas tight.
Typical Alumina property include:

  • Good strength and stiffness
  • Good hardness and wear resistance
  • Good corrosion resistance
  • Good thermal stability
  • Excellent dielectric properties (from DC to GHz frequencies)
  • Low dielectric constant
  • Low loss tangent
  • Others

Material Properties:
Properties Unit Alumina (AL2O3) Zirconia(ZrO2)
AL2O3≥*5 AL2O3≥*9 AL2O3≥*9.5 AL2O3≥*9.8 ZTA YTZ
Volumetric density g/cm3 3.7 3.***3.*5 3.*5 3.9 3.**4.6 6
Hardness HRA≥ *6 *8 *8 *8 ****8 ****0
Flexural Strength Mpa≥ **0 **0 **0 **0 ******0 **0
Maximum temperature ℃ ***0 ***0 ***0 ***0 ********0 ***0
Line expansion coefficient ×***6/℃ 7.5 8.2 8.2 8.2    
Dielectric constant εr(*0℃,1MHz) 9 9.2 9.2 9.2    
Media loss tanδ×***4,1MHz 3 2 2 2    
Volumetric resistivity Ω·cm(*0℃) ***3 ***4 ***4 ***4 ***3 ***4
Breakdown strength KV/mm,DC≥ *0 *0 *0 *0    
Acidic resistance mg/cm2≤ 0.7 0.7 0.7 0.7    
Alkaline resistance mg/cm2≤ 0.2 0.1 0.1 0.1    
Abrasion resistance g/cm2≤ 0.2 0.1 0.1 0.1    
Compressive strength Mpa≥ ***0 ***0  

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