Suoyi Alumina Powder Al2O3 Aluminium Oxide Powder CAS 1344-28-1

Suoyi Alumina Powder Al2O3 Aluminium Oxide Powder CAS 1344-28-1
α-Al₂O₃、β-Al₂O₃、γ-Al₂O₃

Alumina purity: industrial grade (~99%), high purity grade (>99.99%), purity directly affects its electrical properties, optical properties, high temperature properties and biocompatibility.
Alumina crystal form: α phase is used for high strength, high wear resistance, high temperature environment; γ phase is used in catalysis and adsorption fields.
Alumina particle size and particle size distribution: from coarse particles (abrasive) to submicron/nanoscale (polishing, fine ceramics, catalysts), particle size and its distribution are crucial to sintering behavior, polishing efficiency, specific surface area, etc.
Alumina particle morphology: spherical, flaky, irregular, etc., affects powder fluidity, bulk density, sintering performance and polishing effect (e.g. spherical powder has good fluidity, flaky powder can enhance barrier properties in coatings).
Alumina specific surface area: high specific surface area is key, especially for catalytic and adsorption applications.
Alumina sintering activity: affects the densification temperature and final performance of ceramics.

Alumina powder has become an indispensable basic material in the development of modern industry and science and technology due to its excellent hardness, heat resistance, chemical stability, electrical insulation, rich crystal form and performance adjustability. Alumina powder plays a core role in the fields of refractory materials and abrasives in traditional high-temperature industries, as well as modern high-tech electronic substrates, precision polishing, catalysis, biomedicine, advanced coatings, etc. Selecting the right alumina powder (purity, crystal form, particle size, etc.) is the key to meeting specific application requirements.