alumina for led phosphor powder

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alumina for led phosphor powder
Posting date : May 19, 2014
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The basic material of alumina used for LED phosphor is purity alumina and the luminous intensity and quality of LED phosphor powder is directly affected by the alumina purity, grain size, grain size distribution, crystal type, crystal appearance etc. The high purity Alumina produced by our self-owned purification technology has the advantages of high purity, good grain size distribution, excellent crystal type and appearance, stable property. Besides, the batch stability is also very good.Product specification as belows Alumina For LED Phosphor Powder Specification Item Unit Type α-Al2O3 Al(OH)3 YS-6 YS-7 Appearance % White Powder White Powder Al2O3 Content % ≥99.99 ≥99.99 Na ppm ≤30 ≤30 Fe ppm ≤8 ≤8 Ca ppm ≤2 ≤2 Si ppm ≤20 ≤20 Cu ppm ≤1 ≤2 Mg ppm ≤1 ≤2 Ti ppm ≤1 ≤2 Cr ppm ≤1 ≤2 D50 um 0.6~30 1~30 Apparent Density g/cm3 0.3~0.5 0.3~0.6 Specific Surface m2/g 2~10 / Sintered Density g/cm3 / / Application Special Ceramics,Energy Saving Light,PDP Phosphor Powder Special Material Resin Filler,Special Material,Catalytic carrier Note: Package could be made according to customers’ requirements

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