isostatic press forming 99% Al2O3 Alumina Ceramic sleeves
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Alumina Ceramics:
Alumina ceramic
Made of metal platinum, it is a spare part of the differential thermal analyzer for heating non-metallic materials. Such as; glass fiber production, glass drawing and so on.
Non-contact: 1 solid K2O, Na2O, KNO3, NaNO3, KCN, NaCN, Na2O2, Ba(OH)2, LiOH, etc.;
2 aqua regia, a halogen solution or a solution capable of producing halogens;
3 compounds capable of reducing metals and these metals;
4 carbon-containing silicates, phosphorus, arsenic, sulfur and their compounds.
Nickel
Nickel has a melting point of 1455 ° C. The temperature of nickel ruthenium should not exceed 700 ° C because nickel is easily oxidized at high temperatures.
Nickel is highly resistant to alkali and corrosion, so nickel bismuth is often used in molten iron alloys, slag, clay, refractory materials, etc. Nickel bismuth is suitable for NaOH, Na2O2, NaCO3 and alkaline flux melting samples containing KNO3. It is not possible to melt samples with KHSO4, NaHSO4, K2S2O7 or Na2S2O7 and sulfur-containing alkaline sulfide flux.
Metal salts such as Al, Zn, Pb, Sn, and Hg in a molten state can make nickel bismuth brittle. Nickel bismuth cannot be used for the burning of precipitates. Borax cannot be melted in nickel crucibles.
Nickel bismuth often contains traces of chromium and should be used when using it. The new nickel crucible should be burned blue-purple in a muffle furnace to remove oil from the surface, then boiled for 1:100 (volume ratio) hydrochloric acid, then rinsed with water.
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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