Product Code : 3D-Al2O3-CU-PO
Spherical Alumina Powder (Conventional Type) is produced by the high-temperature melting-sphere-jet method, and then sieving, purification, and other processes to produce the final object. It exhibits a high spheroidization rate, high filling ratio, and high thermal conductivity. Because of its unique and excellent physicochemical properties, Spherical Alumina Powder has been widely used as the filler of thermal interface materials, thermal engineering plastics and aluminum-based Copper-Clad Laminates, and so on.
Spherical aluminum oxide powder refers to aluminum oxide powder which is spherical under scanning electron microscope (SEM). Spherical aluminum oxide powder is made from high-purity aluminum oxide powder raw materials, through spray granulation into spherical powder, and then through multiple processes such as washing, drying, screening and strong magnetic iron removal. The common particle sizes are 15-45 um, 15-53 um, 40-80 um, 45-105 um, etc. It can be used for plasma spraying Chemical Identifiersor supersonic flame thermal spraying.
Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.
| Product | Product Code | Purity | Size | Contact Us |
Spherical Aluminum Oxide Powder Synonyms
Alumina; aluminium oxide; aluminum(III) oxide; aluminium(III) oxide; aloxide; aloxite; alundum; oxo-oxoalumanyloxy-alumane, sapphire; corundum; aluminum trioxide; alumina ceramic; alpha-Corundum; bauxite; Electrocorundum; keto-ketoalumanyloxy-alumane; α-Al2O3; α alumina; alpha alumina; aluminum oxide micropowder; aluminum oxide micro powder
Spherical Aluminum Oxide Powder Particle Size
0-15μm, 5-25μm, 15-45μm, 15-53μm, 45-75μm, 45-105μm, 75-150μm. (Various granularities can be customized according to customer requirements)
Spherical Aluminum Oxide Powder Particle Size Description
● 0-15μm (D10=3~5μm, D50=6~10μm, D90=12~14μm)
● 5-25μm (D10=5~10μm, D50=15~20μm, D90=20~25μm)
● 15-45μm (D10=15~20μm, D50=25~30μm, D90=35~40μm)
● 15-53μm (D10=15~20μm, D50=25~35μm, D90=45~50μm)
● 45-75μm (D10=45~55μm, D50=55~65μm, D90=70~75μm)
● 45-105μm (D10=50~60μm, D50=75~85μm, D90=95~105μm)
● 45-150μm (D10=55~70μm, D50=110~120μm, D90=140~150μm)
● 75-150μm (D10=80~90μm, D50=110~125μm, D90=135~150μm)
Spherical Alumina Powder Specifications
| Item | Unit | SSAC-1 | SSAC-30 | SSAC-200 | |
| Particle Size | D10 | μm | 0.58 | 16.88 | 146.3 |
| D50 | μm | 1.03 | 30.52 | 191.5 | |
| D90 | μm | 2.14 | 48.87 | 287.73 | |
| Specific Surface Area | m2/g | 1.69 | 0.1 | 0.03 | |
| Electric Conductivity | μS/cm | 6.07 | 7.95 | 5.2 | |
| pH Value | - | 7.53 | 7.39 | 7.9 | |
| Moisture | % | 0.05 | 0.03 | 0.03 | |
| True Density | g/cm3 | 3.71 | 3.75 | 3.8 | |
| Spheroidization rate | % | 96 | 98 | 95 | |
| Chemical Composition | Al2O3 | % | 99.93 | 99.94 | 99.94 |
| SiO2 | ppm | 445 | 333 | 370 | |
| Fe2O3 | ppm | 152 | 161 | 140 | |
| Na2O | ppm | 103 | 106 | 90 | |
Spherical Aluminum Oxide Powder Characteristics
high purity (≥ 99.9%), low oxygen (≤ 1000ppm), high sphericity (≥ 98%), uniform grain distribution, excellent mobility energy (≤10.0s/50g), high loose loading density (≥ 6.0g/cm3)
Spherical Aluminum Oxide Powder Applicable Processes
Laser/electron beam additive manufacturing (SLM/EBM), laser direct deposition (DLD), powder thermal and other static pressure forming (HIP), metal injection forming (MIM), powder metallurgy (PM), laser melting application (LC), etc.
Spherical Aluminum Oxide Powder Applications
Alumina Ceramic Filters；
Thermal Spray Coating;
Thermal Interface Materials: thermal silica gasket, thermal grease, phase change materials;
Thermal Engineering Plastics: LED lamp cover, switch enclosures, electronic, products shell, heat dissipators for electronics;
Al-based Copper Clad Laminate: high-power LED circuit substrate, power circuit boards, etc.
Packing of Spherical Aluminum Oxide Powder
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.
ATTs’Spherical Aluminum Oxide Powder is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Chemical Identifiers
| Linear Formula | Al2O3 |
| CAS | 1344-28-1 |
| MDL Number | MFCD00003424 |
| EC No. | 215-691-6 |
| Beilstein/Reaxys No. | N/A |
| Pubchem CID | 14769 |
| IUPAC Name | Oxo(oxoalumanyloxy)alumane |
| SMILES | O=[Al]O[Al]=O |
| InchI Identifier | InChI=1S/2Al.3O |
| InchI Key | TWNQGVIAIRXVLR-UHFFFAOYSA-N |
