Post fabrication

There are also occasions, particularly in hydrogen-containing atmospheres, when surface contamination of the titanium with iron can result in localised corrosion and embrittlement. This effect can be countered by avoidance of undue contamination with iron during fabrication, by postfabrication cleaning and by post-fabrication anodisingIt should be emphasized, however, that in general use in the marine and chemical industries discussed below, iron levels up to 0-2% do not adversely affect corrosion resistance. 

Galvanising should be post-fabrication, with steel sheet treated to BS2989 and other items to BS729 . Where appearance is important, designers could do worse than have galvanised samples coated before deciding whether powder coating will produce required standard. 

All coating should be post-fabrication, cutting or drilling coated sheet or tube is unacceptable. However, coated items can be bent or formed. 

Plastic surfaces can become electrostatically charged through friction, either during processing or post-fabrication handling. This generates several disadvantages ... 

Kymakis E, Koudoumas E, Franghiadakis 1, Amaratunga GAJ (2006) Post-fabrication annealing effects in polymer-nanotube photovoltaic cells. J Phys D Appl Phys 39 1058... 

Developing cost-effective processing (compounding and post-fabrication) technology. 

One of the earliest applications of carbon as an implant material was in restorative dentistry. The first devices were bulky posts fabricated from glassy carbon that were implanted in the maxilla or mandible to serve as artificial tooth roots. Because of the inherent lack of strength of glassy carbon, they were bulky and poorly accepted. As a further complication, the stainless steel post on which a crown was cemented formed a galvanic couple in vivo leading to complications caused by accelerated corrosion of the stainless steel. 

A hst of specific items to be checked during installation and the final walk-down or post-fabrication inspection. (There are often items identified as potentially problematic that caimot be adequately assessed at the time of the review due to lack of detailed knowledge.)... 

Mauler MS, Wang Y, Okemgbo KC, Osuji CO, Giannelis EP, Elimelech M. Antifouling ultrafiltration membranes via post-fabrication grafting of biocidal nanomaterials. ACS Appl Mater Interfaces 2011 3(8) 2861—8. 

Conversely, one could consider a random SAM formation of different molecule types, and hence logic types, followed by testing of the chip properties once the SAM formation is complete. If this random approach were used, it would mean that none of the chips would have a known function a priori however, the technique could be efficacious since some logic applications could be programmed into the chip post-fabrication. This will be discussed later in the context of the NanoCell approach. 

Finally, some post-fabrication treatments of the deposited meshes can be hardly compatible with living cells and biologically functional compounds, especially when these processes involve (chemical, thermal, UV, etc.) cross-linking to enhance the mechanical strength of the scaffold and its stability in aqueous environments. These procedures, besides complicating the overall fabrication process, may have in principle a detrimental effect on the level of biocompatibility and on the functionality of embedded molecular dopants. 

Another source of topography on the mirror surface resulted from residual stress-gradients in the polysilicon film after it was released, as described previously in Section 4.5 on obtaining flatness in optical MEMS devices. Here it was found that a post-fabrication ion bombardment step could be used to increase the radius of curvature due to residual stress gradients, as shown in Figures 8.8 and 8.9 [19]. 

Cost per cubic inch is a first measure of true cost. Strength, stiffness and overall fabrication cost must also be taken into consideration. Yard-sticks like cost per eqivalent strength or strffiiess are used. Low cost per cubic inch and design plasticity, with its savings in post-fabrication costs and in parts consolidation, have made plastics much cheaper than metals. 

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