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Black Silicon Carbide Micropowder for ceramics and refractory

Black Silicon Carbide Micropowder for ceramics and refractory

$2.70 $2.60 /MT

Black Silicon Carbide Micropowder for ceramics and refractory
      Silicon carbide exists in about 250 crystalline forms. The polymorphism of SiC is characterized by a large family of similar crystalline structures called polytypes. They are variations of the same chemical compound that are identical in two dimensions and differ in the third. Thus, they can be viewed as layers stacked in a certain sequence.

      Alpha silicon carbide (α-SiC) is the most commonly encountered polymorph; it is formed at temperatures greater than 1700 °C and has a hexagonal crystal structure (similar to Wurtzite). The beta modification (β-SiC), with a zinc blende crystal structure (similar to diamond), is formed at temperatures below 1700 °C. Until recently, the beta form has had relatively few commercial uses, although there is now increasing interest in its use as a support for heterogeneous catalysts, owing to its higher surface area compared to the alpha form.

Specification of brown fused alumina

Particle SizeParticle Distribution (µm)
Maximum Particle SizeParticle Size at d03Particle Size at d50Particle Size at d94
# 240≤ 127≤ 10358.6 ± 3.0≥ 40.0
# 280≤ 112≤ 87.049.4 ± 3.0≥ 33.0
# 320≤ 98.0≤ 74.041.1 ± 2.5≥ 27.0
# 360≤ 86.0≤ 66.036.1 ± 2.0≥ 23.0
# 400≤ 75.0≤ 58.030.9 ± 2.0≥ 20.0
# 500≤ 63.0≤ 50.026.4 ± 2.0≥ 16.0
# 600≤ 53.0≤ 43.021.1 ± 1.5≥ 13.0
# 700≤ 45.0≤ 37.017.9 ± 1.3≥ 11.0
# 800≤ 38.0≤ 31.014.7 ± 1.0≥ 9.00
# 1000≤ 32.0≤ 27.011.9 ± 1.0≥ 7.00
# 1200≤ 27.0≤ 23.09.90 ± 0.80≥ 5.50
# 1500≤ 23.0≤ 20.08.40 ± 0.60≥ 4.50
# 2000≤ 19.0≤ 17.06.90 ± 0.60≥ 4.00
# 2500≤ 16.0≤ 14.05.60 ± 0.50≥ 3.00
# 3000≤ 13.0≤ 11.04.00 ± 0.50≥ 2.00
# 4000≤ 11.0≤ 8.003.00 ± 0.40≥ 1.30

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