Inert Ceramic Balls (Catalyst Support Media)

Zirconia toughened alumina ceramics (ZTA) are material of white, wear-resistant, corrosion-resistant and good chemical stability. Alumina ceramics have high hardness and zirconia ceramics have good toughness. The most commonly method for toughening alumina ceramics is zirconia toughening. Adding an appropriate amount of zirconia to alumina, the two materials form an excellent composite material with high strength and high toughness, with better physical and chemical properties, and a wider range of applications. ZTA has higher flexural strength, fracture toughness and excellent wear resistance. According to the special requirements of different users, the specific ratio of alumina and zirconia can be adjusted to obtain ZTA with different properties. The performance of zirconia toughened alumina ceramics is better than that of 95 alumina ceramics, and the price is much lower than that of zirconia ceramics; in many working conditions where alumina ceramics are not competent, ZTA shows a better cost performance than zirconia ceramics, and is widely used in mining, machinery, electronics, petroleum, chemical and aerospace,etc.

We design and make replaceable impact-wear resistant parts and linings for mineral processing equipment, agricultural machinery, powder silo and bulk solid terminal. Our production range include wear protection alumina ceramic linings for feeder equipment, wind blade and lining, crusher lining, excavator grab, Mill lining, Body of pump, bunker, chute, powder concentrator blade, harvester, etc. We also make rubber backed or rubber/metal backed ceramic wear plate for coal mill lining, clinker, coal crusher, charging bucket, chute, mixer parts, transfer chute, port handling system, mining machine ceiling, grab, fitting and elbow. We also design and make alumina ceramic lined products, such as: Coal mill equipment, coal pipe & bends, coal bunkers, chutes, ash handling systems, steel plants and slip on pipe couplings, etc.

Typical Zirconia Ceramic Products: Zirconia ceramics are mainly used in high-power devices, IC MOS tubes, IGBT chip-type thermal insulation, high-frequency power, communications, mechanical equipment, high current, high voltage, high temperature and other parts that require thermal conductivity and thermal insulation. Pump components Cutting tools Valves (Spool) Bearings Filters

Typical Alumina Ceramic Products: Pump seals and components Wear-resistant components Insulating washers or bushings Semiconductor components Aerospace components Electrical or electronic insulators (spacers) Alumina ceramic spacers

Typical Applications of Zirconia Ceramics Zirconia ceramics are mainly used in high-power devices, IC MOS tubes, IGBT chip-type thermal insulation, high-frequency power, communications, mechanical equipment, high current, high voltage, high temperature and other parts that require thermal conductivity and thermal insulation.

Alumina ceramics is the most mature of the engineering ceramics, offering excellent electrical insulation properties together with high hardness and good wear resistance but relatively low strength and fracture toughness. High purity alumina ceramics are ideal for environments where resistance to wear and corrosive substances are required. Alumina ceramic has excellent thermal stability, which means that it is widely used in areas where resistance to high temperatures is essential. Alumina ceramic is the material of choice for alumina wear parts. The proven wear and heat resistance of alumina wear parts makes them ideal for the manufacture of wear-resistant components. Alumina has a high melting point, high hardness, although mechanical strength is reduced at temperatures above 1000 C. Due to the relatively large coefficient of thermal expansion, thermal shock resistance is reduced. Alumina is an electrically insulating material, with a high electrical resistivity, increasing with purity. Good chemical stability of alumina leads to high corrosion resistance. It is insoluble in water and only slightly soluble in strong acid and alkaline solutions. Testing has shown that the low chemical solubility of alumina ceramics components makes them highly resistant to chemical corrosion. This is what makes high purity alumina the material of choice for components in a wide range of industrial applications. Alumina Ceramics are generally white and the color is derived from either the sintering additives or impurities in the raw materials. We make and supply alumina ceramic grinding media, abrasion ceramic lining and alumina ceramic parts & components. We also supply zirconia ceramics.

Supplier: Advanced ceramics, alumina ceramics, zirconia ceramics, zta, fine ceramics, ceramic parts, ceramic components, inert ceramic balls, catalyst support media

Supplier: Led bulb, tube light, panel light, decoration light, wall light, steel wires, steel plate, stainless steel plate, twisted wire rods, galvanized wires, wire mesh, site fencing, mosquito mesh, thread rods, rebar, twisted rods, t bar, nuts and bolts, hardware, pvc pipes, upvc pipes, api pipes, melamine, mdf board, plywood, film faced, shuttering, packing, core veneer, face veneer, hdf molded door skin, door filler, tubular particle boards, pvc boards, wpc boards, doors, block board, hard board, gypsum board, canopy, carpet, flooring wooden, bamboo, laminated engineering, tiles, granite tiles, granite blocks, black galaxy, wash basin, water closets, washbasins, ss sinks, faucets, furniture, pvc edge bending, crew, locks, pvc seals, silicone cartridges, shower enclosures, shower door hinges, handles, knobs, brackets, slides, nails, solar panels, flexible solar panels, solar power station, battery, inverters, rechargeable fans, lights, spring, 3ply disposable face mask, oxygen concentrator ,
Services: Buying office, oem, components sourcing, value added services
Buyer: In shell pecan nut, macadamia nut

Description: Inert alumina ball-17 is called ceramic ball 17%~19% Al2O3. It is equal to Denstone 57 Support Media.They are the most widely used support media in the world. It is made of high quality chemical-porcelain clay materials, which has quite excellent stability, high mechanical strength and resistance to thermal shock, This makes them all ideal choice for support of all types of catalyst. Technical Parameter: Type Inert Alumina Ball-17 Color Light gray Shape Ball Chemical composition Min. % Max. % Usual % Al2O3 17 19 18 SiO2 70 77 74.9 Al2O3 + SiO2 90 96 93 Fe2O3 / 1.0 0.9 TiO2 / 0.5 0.46 CaO / 0.65 0.42 MgO / 0.5 0.38 Na2O / 2 1.12 K2O / 3.5 3.28 Physical properties Leachable Iron (%) 0.1 Apparent Porosity by Weight (%) D 10mm 0.4 D=6mm 1.0 D=3mm 3.0 Water absorption (wt.%) 1.0 Acid resistance (%) 99.8 E-modulus(Gpa) 60 Alkaline resistance (%) 85 Bulk Density(Packing density) (g/cm3) 1.35 (lb/ft3) 84 Specific density (kg/m3) 2300 (lb/ft3) 144 Moh hardness (scale) 7 Thermal conductivity (w/m2.k) 0.9-1.0 Specific heat (30 degC to 100 degC, Kcal/Kg dec) 0.2 Max. Operating Temperature () 1050 ( 1922 Thermal conductivity, 30 degC to 100 degC, W/mK 1.0 Thermal Shock Stability (times) (500 then water cooling) 10 Co-efficient of thermal expansion 30 degC to 600 deg C, 10^-6K^-1 4.7 Geometric properties Nominal Size (mm) 3 6 10 13 16 19 25 38 50 (inch) 1/8 1/4 3/8 1/2 5/8 3/4 1 1.5 2 Crush Strength Min. (lbs) 77 176 234 572 726 1672 1870 2090 3476 (kg) 35 80 106 260 330 760 850 950 1580 (N/PC) 343 784 1039 2548 3234 7448 8330 9310 15484 Surface area m2/m3 1285 520 350 280 220 170 125 105 65 Void Fraction % 44 44 44 45 45 45 45 45 45 Application: â?? Mainly used in the petroleum, chemical industry, fertilizers, natural gas, environmental protection and other industries. As a catalyst in the reactor to cover support media and tower packing. Package: 25kg plastic bag 1350kg super sack 250kg~280kg steel drum