high thermal conductivity alumina Al2O3 Ceramic parts
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Alumina Ceramics:
Al2O3 porcelain sintered products have a flexural strength of up to 250 MPa and hot pressed products of up to 500 MPa. Al2O3 ceramics have a Mohs hardness of 9, plus excellent wear resistance, so they are widely used in the manufacture of tools, ball valves, grinding wheels, ceramic nails, bearings, etc. Among them, Al2O3 ceramic tools and industrial valves are the most widely used. . The optimum cutting speed of Al2O3 ceramic tools is higher than that of ordinary carbide tools, which can greatly improve the cutting efficiency of different materials. With the extensive research of scientists, other components are added to form a two-phase or solid solution in the matrix of Al2O3-based composite ceramics and whisker-reinforced ceramics. These technologies make up for the lack of pure Al2O3 ceramics, which improves its cutting performance and durability. The Al2O3-carbide ceramic tool adds a certain amount of carbide to Al2O3 to improve its strength, wear resistance, impact resistance and high temperature performance. Due to the addition of metal, the bonding strength of Al2O3 to carbide is improved and the performance is improved. Such ceramic tools are suitable for processing hardened steel, alloy steel, manganese steel, chilled cast iron, nickel-based and cobalt-based alloys, and non-metallic materials. Wait.
properties: High hardness, high strength, wear resistance, corrosion resistance, high temperacture (1600°), good thermal diffusivity, good insulativity, low cost etc.
Data Sheet↓
Color: White/Ivory Density: 3.9g/cm3 Alumina Content: 96% 99% 99.5% Gas permeability: 0 Water Absorption: 0 MONS' Hardness: 82 Vickers Hardness (Hv50): 15.7(1600) Gpa(Kg/mm²) Flexural Strength(20°C): 330Mpa Compressive Strength(20°C): 2000Mpa Fracture Toughness (20°C): 4 MPam1/2 Thermal Conductivity(20°C): 27.5W(m.K) Thermal Expansion Coefficient: 7.6 10-6/°C Thermal Shock Resistance: 200 △T°C
Maximum use temperature 1650°C
Dielectric Strength: ＞10 KV/mm
Dielectric Constant: 9.1er
Dielectric Loss Angle(1MHz): 0.0002-0.0003
Volume Resistivity(20°C): ＞1014Ω.cm
Application industry: Machinery, electronic, chemical, petroleum etc. Specific application: Electrical ceramic substrate, plunger, sealing ring etc.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Short time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad. 7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
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FAQ
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A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
