高纯氧化铝具有化学稳定性好、熔点高、机械强度高、硬度高、导热性好、绝缘性高等性能。由改进后的拜耳工艺制造。
应用：蓝宝石，红宝石，工程陶瓷，陶瓷基底，喷涂材料，光电玻璃，半导体器件，绝缘体，电力设备等。
High purity alumina by its chemical stability, high melting point, high
mechanical strength, high hardness, good thermal conductivity, high
insulation and other properties. Manufactured by the improved Bayer
process.
Application:
Sapphire, ruby, engineering ceramics, ceramic substrate, spray material, photoelectric glass, semiconductor devices, insulators, electrical power devices
and more.
Product Typical Properties | 4N5G-40B | 4N5G-D2 (milled) | 4N5A-40B | 4N5A-D5 (milled) |
晶相 |
| γ | γ | α | α |
平均粒径 (by Bettersize Laser 9300SE) | 〔D50,um〕 | 35-45 | 1-3 | 35-45 | 3-5 |
松装密度 | 〔g/cm3〕 | 0.55-0.65 | 0.30-0.40 | 0.70-0.80 | 0.50-0.60 |
比表面 | 〔m2/g〕 | 45-55 | 60-70 | ≤5 | ≤5 |
纯度(Al2O3)≥ | 〔%〕 | 99.995 | 99.995 | 99.995 | 99.995 |
杂质≤ (by ICP-OES) | Na | 〔ppm〕 | 30 | 30 | 30 | 30 |
Ca | 〔ppm〕 | 1 | 1 | 1 | 1 |
Mg | 〔ppm〕 | 1 | 1 | 1 | 1 |
Fe | 〔ppm〕 | 1 | 1 | 1 | 1 |
Si | 〔ppm〕 | 17 | 17 | 17 | 17 |
Ti | 〔ppm〕 | 1 | 1 | 1 | 1 |
Cu | 〔ppm〕 | 1 | 1 | 1 | 1 |
包装 (可根据客户要求) | 〔drum/〕 | 25kg | 20kg | 25kg | 25kg |
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