An Analysis of Nanoparticle Settling Times in Liquids

Table 2

Geometric details of different aggregate shapes. , , and are, respectively, aggregates of radii 2.5 µm, 4 µm, and 5 µm.

Shape		Volume ()	Surface area ()	Projected cross section area ()		Sphericity ()
	⁢; ⁢	65.45; 268.08; 523.60	78.54; 201.06; 314.16	19.63; 50.26; 78.53	3; 3; 3	1; 1; 1
	⁢; ⁢	65.44; 268.10; 523.08	91.62; 293.24; 388.60	6.61; 12.57; 33.18	1.8–2.0; 1.8–2.0; 1.8–2.0	0.857; 0.686; 0.808
	⁢; ⁢	65.43; 268.10; 523.62	110.51; 294.76; 419.00	16.14; 72.27; 92.56	2.0–2.5; 2.0–2.5; 2.0–2.5	0.710; 0.682; 0.75