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用自制布莱恩(Blaine)空气透过法装置测量了九种粗细不同的镍粉、铁粉、铜粉及银粉的比表面,其值在690～26400cm~2/g之间,平均粒径为0.26～11.1μm。
The specific surface area of nine nickel powders, iron powders, copper powders and silver powders with different thickness was measured by the self-made Blaine air permeation apparatus. The specific surface area was 690 ~ 26400cm ~ 2 / g and the average particle size was 0.26 to 11.1 μm.