PRODUCT NAME: Calcined Alumina
TYPE: Calcined Aluminas
TIME：2017-11-24
VIEWS：781
PRODUCT DESCRIPTION：YONAI YAC calcined alumina is the best alternative
YONAI Calcined Alumina YAC series is produced through the calcination of alumina to various temperatures with our high technology tunnel kiln and rotary kiln. By controlling the calcination temperatures and time, the properties of the alumina can be controlled. Calcined alumina is therefore utilized in a variety of industrial applications including Structural ceramics, Technical ceramics, Polishing compounds for plastic, metal, and glass, Fillers for Rubber and Plastics, Friction - anti slip, Refractories, Paint & Coatings and Thermal Spray Powders.
Typically the primary variables in selecting the proper calcined alumina for your application are:
Density of crystal: low/soft, medium or high/hard material
These factors are determined by the degree and duration of calcination.
Surface area of the powder: decreases with a higher degree and duration of calcination.
Soda content: decreases with higher degree of calcination and chemical treatments.
Alpha Alumina Content.
Primary Crystal size.
TYPICAL PROPERTIES
High Hardness
High Compression
Strength
Abrasive/Wear
Resistance
Chemical Inertness
High Degree of
Refractoriness
Superior Electrical
Insulation
Resistance To Thermal
Shock
Dielectric Properties
High Melting Point
TYPICAL APPLICATIONS
|
Polishing |
Structural Ceramics |
Technical Ceramics |
|
Body and Vehicle Armor |
Lapping |
Laminates |
|
Coatings |
Filtration |
Abrasives |
|
Refractory |
Milling |
Filler |
TYPE
Al2O3
%
Na2O
%
SiO2
%
Fe2O3
%
True
Density
g/cm3
α-Phase
%
Primary
Crystal
Size
YAC-101
≥99.7
≤0.10
≤0.05
≤0.03
≥3.95
≥95
1-3 μm
YAC-152
≥99.5
≤0.15
≤0.10
≤0.03
≥3.94
≥95
2-4 μm
YAC-202
≥99.0
≤0.20
≤0.15
≤0.04
≥3.93
≥94
2-3 μm
YAC-R
≥99.5
≤0.20
≤0.08
≤0.03
≥3.93
≥94
1-2 μm
