Material Properties of Aluminum Oxide

Alumina (aluminum oxide) is a well-known ceramic material with numerous crystalline phases. Corundum or α-Al₂O₃ is the only phase that is thermodynamically stable at all temperatures. Thanks to its hardness, α -Al₂O₃ is used as a grinding medium in numerous applications, from abrasive paper and grinding wheels to CMP (Chemical Mechanical Polishing) slips used in microchip production. The somewhat less hard phase γ-Al₂O₃ is also applied fairly frequently. The phase and the form of a given alumina depend on the manufacturing process. In a platelet form, alumina is used as an additive in cosmetics in order to influence the tactile properties in much the same way as clay. The related material aluminum oxide hydroxide (e.g. boehmite) is used as an additive in hard coatings. Similarly to n-SiO₂, it is widespread and relatively inexpensive. For this reason, n-Al₂O₃ is considered to be the workhorse among the carrier substances in the development of numerous functional nanoadditives. In all, n-Al₂O₃ offers a versatile platform for product innovations. Why not speak with Buhler PARTEC to develop the full functionality of your product formula? 

 

Please find detailed information here

Tailored n-Al₂O₃ dispersions (PDF, 159 kB) 

Main Contact: Bühler Partec GmbH Germany P: +49 681 394 65 50 F: +49 681 394 65 68 More contact info