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What is γ-Alumina

What is γ& gamma;-Alumina? Alumina with & gamma;-type crystal kind is & gamma;-alumina. & gamma;-type alumina is insoluble in water as well as can liquify in strong acid or alkali solution. When heated up to 1200 ℃, γ& gamma;-kind alumina is entirely changed into α& alpha;-type alumina. & gamma;-kind alumina is a porous compound with an interior surface of numerous hundred square meters per gram as well as high activity as well as solid adsorption capability. Commercial products are usually anemic or pink cylindrical fragments with great stress resistance.

γ& gamma;- Alumina Residences The fragment dimension of γ& gamma;-phase nano-alumina is smaller than that of 20nm, with uniform fragment dimension circulation, high pureness, excellent diffusion, high certain surface area, high temperature-resistant inertia as well as high activity, so it comes from active alumina, porosity, high hardness and also good dimensional stability.
It can be extensively used in the support and toughening of all type of plastics, rubber, ceramics, refractories and other items, particularly in improving the compactness, finish, cold as well as warm fatigue, crack durability, creep resistance and also use resistance of polymer materials. It is very easy to distribute in solvent water; it can be uniformly spread in ethanol, propanol, propylene glycol, isopropanol, ethylene glycol monobutyl ether, acetone, butanone, benzene as well as xylene without adding dispersant. It is frequently contributed to epoxy material, plastics, and so on What is
& gamma;-Alumina used for?
Coatings: porcelain film finishings, wear-resistant layers and plasma spraying.
Ceramics: clear porcelains, bioceramics and also alumina ceramics.
Petrochemical market: catalyst, driver service provider and car exhaust purification material.
Polishing materials: submicron/ nanometer grinding products, single crystal silicon wafer grinding, fine sprucing up materials.
Lights: long afterglow phosphor basic material as well as rare planet tricolor phosphor resources, high stress sodium lamp transparent tube, LED light and so on.
Electronic devices: integrated circuit substratum, solitary crystal materials as well as far-infrared materials.
Cosmetics: aesthetic fillers.
Not natural membrane products.

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