Aluminium electron micrograph

For electronic micrographs, samples were taken from fresh beads and 72 hour beads from the ICR column. The samples were dipped into liquid nitrogen for 10 minutes, then freeze dried for 7 horns (EMITECH, model IK750, Cambridge, UK). The sample was fixed on an aluminium stub and coated with gold-palladium by a Polaron machine model SD515... 

Fig 1. Scanning electron micrographs of Gouda cheese eaten by 2 different subjects and expectorated after 5 chews. Spitout material was collected in a sieve and rinsed in cold water. Particles were spread on individual aluminium trays and frozen in liquid nitrogen prior to examination. 

Figure 3.2 Electron micrographs, (c) Platelets of nordstrandite (aluminium hydroxide) (x 5000). (d) Replica of an etched copper surface (x 5600)...

A sample of conunencial MFI from Zeolist was used, with a silicon aluminium ratio (Si/AI) of 100, the crystals do not present a regular shape. On figure 2 Scanning Electron Micrograph (SEM) of MFI crystals is presented. The sample was calcined for 6h at 873K. 

Figure 6. Scanning electron micrographs of t]pe products of the aluminium-free syntheses with TPA (A) and TEA (B) as template.

Fig. 15. (a) Scanning electron micrograph of sectioned anodic film on aluminium grown ar z.o in 0.1 M NaOH, showing a porous oxide on a smooth substrate, (b) SEM of the anodic filn. dissolved at - 0.5 V for 80s, showing a patchy residual oxide on a roughened substrate. 

Fig. 2. Electron micrograph of an anodic layo" formed on aluminium in phosphoric acid. Top right and bottom left show pore openings in the top surface and the central band shows a section through the pores...

Fig. 8.22 Transmission electron micrograph of a carbon replica of a fracture section through an anodic film formed on aluminium. Anodizing conditions were 150 V for 70 minutes in 0.5 mol dm phosphoric acid. (Courtesy Dr. G. E. Thompson, Corrosion and Protection Centre, University Manchester Institute of Science and Technology.)...

Figure 3 Scanning electron micrographs showing (a) the initial flattening of equiaxed brass powder during milling, (b) flake fracture as the diameter to thickness ratio increases, (c) brass flake with a minimum thickness of about 0.5 im and (d) aluminium flake with a minimum thickness of about 0.5(xm.

Figure 8.17 Scanning electron micrographs [76,97] and isometric drawings [76] of oxides on aluminium alloy, (a) Chromic acid etched (CAE) (b) phosphoric acid anodized (PAA).

Fig. 8.64 Micrograph of a bridging site taken in situ in the SEM (secondary electrons) during crack propagation in an alumina/ aluminium titanate. P and Q denote frictions points during grain pull-out (courtesy of Nitin Padture) [21]. With kind permission of Dr. Jorge Lino...

Fig. 1.19. Scanning electron microscope micrograph of the microstructure of aluminium oxide (AI2O3). The horizontal scale bar has a length of 1 gm. Courtesy of...

---