Laser crystal-class ultra-high purity alumina 6N

Laser crystal-class ultra-pure 6N ultra high purity alumina powder grade, high purity, good sintering performance. Mainly for the production of high-power high-performance aluminum-based laser crystals, such as aluminum oxide crystals, crystal yttrium aluminum garnet (YAG), lanthanum aluminate and the like; particularly suitable for Kyropoulos, guided touch method, temperature gradient method, Czochralski method and other large-size sapphire production. The product has been successfully used in the preparation of transparent polycrystalline alumina ceramic. Within the high-end crystal products in foreign industries with high degree of market share, it is exported to Germany, the United States, Japan and other countries. Products to meet the needs of different crystal manufacturer, powder density is adjustable, but also for briquetting, pelletizing process according to customer requirements. Technical Specification Model VK-L200G VK-L200K VK-L200Q purity alumina purity alumina crystal Crystal aaa Appearance White loose powder white block white particles having an average primary particle size (um) 0.2-3 ------ ----- purity alumina surface area (m2 / g) 6-12 ------ ----- purity alumina bulk density (g / cm3) 0.4-0.6 ------ 0.8-2 purity alumina bulk density (g / cm3) ----- 3.3-3.9 ----- Al2O3 content (%) 99.9999 99.9999 99.9999 B (ppm) <0.02 <0.02 <0.02 Na (ppm) 0.10 0.10 0.10 P (ppm) 0.04 0.04 0.04 K (ppm) 0.05 0.05 0.05 Ti (ppm) <0.06 <0.06 <0.06 Fe (ppm) 0.04 0.04 0.04 Co (ppm) <0.08 <0.08 <0.08 Zn (ppm) 0.07 0.07 0.07 F (ppm) 0.07 0.07 0.07 Si (ppm) 0.09 0.09 0.09 Cl (ppm) 0.08 0.08 0.08 Ca (ppm) 0.03 0.03 0.03 Mn (ppm) 0.07 0.07 0.07 Ni (ppm) <0.01 <0.01 <0.01 Cu (ppm) 0.02 0.02 0.02 Ga (ppm) <0.06 <0.06 <0.06 RE (ppm) <0.1 <0.1 <0.1 applications: 1. alumina-based laser crystals, such as aluminum oxide crystals, crystal yttrium aluminum garnet (YAG), lanthanum aluminate 2 . Sapphire Dan Changjing, sapphire crystal rods 3. transparent polycrystalline alumina ceramic Storage: sealed and stored in a cool, dry place to prevent dust pollution. Package: 1 kg / bag, 25kg / barrel.