



Corundum ceramic sleeve
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Описание продукта
- 产品描述
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Product Introduction
Our company develops corundum alumina temperature-resistant and wear-resistant ceramic sleeves, with hardness second only to diamond, featuring high wear resistance and long service life. YL-NT corundum refractory ceramic special-shaped parts can be manufactured according to user-specified dimensions, produced using special molds. Main features include: low expansion, high temperature resistance, corrosion resistance, oxidation resistance, and long service life. They are important components for special high-temperature wear-resistant parts.
Technical Parameters
Ceramic Properties Table
Name
99 Ceramic
95 Ceramic
Zirconia
Main Components
AlO ₃ ≥99%
Al ₂ O ₃ ≥95%
ZrO ₂ ≥94%
Physical Properties
Density
3.85
3.6
5.9
Water Absorption %
0
0
0
Sintering Temperature ℃
1690
1670
1650
Material Properties
Hardness HV
1700
1600
1400
Flexural Strength 4pt
>3500
>2900
>11000
Compressive Strength Kgf/cm²
30000
25000
25000
Thermal Properties
Maximum Operating Temperature ℃
1500
1400
1600
Thermal Expansion Coefficient
8
7.8
10
10-6/℃
0-1000℃
Thermal Shock Resistance T(℃)
200
220
350
Thermal Conductivity W/m.k
31
22
3
Electrical Properties
Volume Resistivity Ω.cm
>1012
>1012
>1012
Insulation Breakdown Strength KT/m
18
16
15
Dielectric Constant 1MHZ(E)
9.2-10.5
9.0-10
12.5
Запрос продукта
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