Alumina Powder Coating
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Min Order
1
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Product Unit
Pieces
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Origin
China Mainland
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Product Detail
Metal-ceramic composites are an ideal material for microelectronic industry substrate materials. Alumina powder coating as Insulating ceramic coatings are thermally sprayed on metal plates such as Kovar, copper, aluminum, and steel. Metals with high thermal conductivity can dissipate the heat generated by high currents while ceramic coatings provide good Dielectric insulation properties. Taking the Alumina powder coating on the copper plate as an example, the total thermal conductivity is 5 times higher than the total thermal conductivity of the alumina layer sintered on the copper plate with the same thickness, which is very conducive to the heat dissipation and the power of the integrated circuit board.
The L-22, L-23 and L-24 alumina products independently developed by our company are superior in quality to the similar products produced by the traditional sintering process. The chemical composition and physical properties are stable, the grain size range is regulated, the particle morphology is regular and the powder flow Good sex, good dispersion. With plasma, explosion, flame, supersonic spray coating equipment, such as spraying high hardness, low porosity, high bonding strength, good seismic and heat resistance. The coating has excellent properties of wear resistance, corrosion resistance, high temperature resistance, insulation and heat insulation. It is widely used in textile, metallurgy, electronics, chemical, aviation, agricultural machinery and petroleum fields.
Qualitative data |
AL-M43 |
L-22 |
L-23 |
L-24 |
|
Chemical Composition |
L.O.I(%) |
0.05 |
0.05 |
0.05 |
0.05 |
SiO2 (%) |
0.072 |
0.036 |
0.038 |
0.036 |
|
Fe2O3(%) |
0.013 |
0.020 |
0.018 |
0.016 |
|
Na2O(%) |
0.04 |
<0.02 |
<0.02 |
<0.02 |
|
Al2O3(%) |
99.9 |
>99.9 |
>99.9 |
>99.9 |
|
Size of a-crystal |
(um) |
2~3 |
2~3 |
2~3 |
2~3 |
Mean Particle Size (um) |
4.5 |
4.4 |
4.7 |
4.6 |
|
BET(cm3/g) |
1.533 |
1.526 |
1.563 |
1.578 |
|
a- Al2O3(%) |
96.4 |
96.8 |
96.4 |
96.6 |
|
Green Density (g/m3) |
2.27 |
2.28 |
2.27 |
2.27 |
|
Green Density (g/m3) |
3.67 |
3.66 |
3.67 |
3.67 |
|
Linear Shurinkage (%) |
15 |
15 |
15 |
15 |
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