97 alumina

97 Aluminium oxide is a white solid, a compound of aluminium and oxygen, and its molecular formula is Al2O3. Bauxite is also called bauxite in mining, ceramics and material science. The common purity was 97%. White solid insoluble in water, odorless, tasteless, extremely hard, easy to absorb moisture but not deliquescence (burnt without moisture absorption). Amphoteric oxide, soluble in inorganic acid and alkaline solution, almost insoluble in water and non-polar organic solvents; relative density (d204) 4.0; melting point 2050 C.

97 alumina application field
1) High strength and high temperature stability: decorative porcelain, nozzle, rocket and missile dome;
2) High hardness and wear resistance: cutting tools, dies, abrasives, bearings, artificial gemstones;
3) Low dielectric loss, high resistivity and high insulation: spark plug, circuit board, tube seat;
4) High melting point and corrosion resistance: refractories, crucibles, furnace tubes, thermocouple protective sleeves, etc.
5) Ionic conductivity: solar cell materials and storage battery materials.
6) Biocompatibility: It can also be used to make artificial bones and joints, etc.

97 alumina performance parameters

Technical Indicators	Company	97 porcelain
Al2O3	%	97
Al2O3 grain size	μm	0.8
Loose packing density	≥g/cm3	1.12-1.14
Water content	%	0.3
particle size distribution	order	60--200
Porcelain Density	≥g/cm3	3.80--3.82
Average contraction rate	%	17--19
Firing temperature	℃	1630
holding time	H	3
Burning loss	%	< 5
Ceramic colour		white