Window coating

In-situ x-ray diffraction (XRD) was performed on a coin type cell with a 4x6 mm Kapton window coated with conductive thin copper layer. The graphite electrode was pressed against the Kapton window so as to be reached by the x-ray beam. After several lithiation/delithiation cycles under a C/10 rate between 1.5 and 0V, the cell was fully delithiated up to 1.5V. The cycle capacity achieved with the graphite electrode is about 360mAh/g. The cell was then re-lithiated under a slower rate of C/20. XRD patterns were taken for about five minutes every hour while the cell is under continuous discharge. As result the lithium composition x in LixC6 was incremented by 0.05 between two successive XRD scans. 

The aircraft manufacturer Boeing sponsored the work described here, and the company is developing the technology further for aircraft window coatings. 

Small details can impact how successfully an installation is viewed. The unforeseen window coatings and associated maintenance were not sufficient for the plant to stop using the analyzer, but they probably reduced the personnel s satisfaction with the technology. Since it is simply not possible to predict and investigate every possible issue during feasibility studies, owners of any kind of on-line analyzer must be prepared to consider the need to make changes to the system over time. 

Possible interferences include the presence of chlorine in the oil and coating of the flow cell beryllium windows. Chlorine may interfere with the sulfur measurement if the chlorine is present in a concentration ratio to the sulfur of greater than 1 10 and the chlorine concentration varies independently of the sulfur. Flow cell window coating has negligible effect on the sulfur measurement in XRT. This is because a coating build-up of a few hundred microns is a negligible part of the entire X-ray path length. 

Production of translucent AIN ceramics opens a way to new practical applications of this material, particularly as optical components (windows, coating, etc.) in severe application environments. At the same time, translucent AIN ceramics is being studied as a promising laser material. 

The SEIRA phenomenon can be illustrated by the / -NBA-Ag system, which has been extensively studied [382, 384, 390-393] since the work of Hartstein et al. [356]. Curve a in Fig. 3.61 shows the SEIRA spectrum of / -NBA adsorbed from an acetone solution onto a CaF2 window coated by an 8-nm Ag islandlike layer, after removal of physisorbed / -NBA by washing with acetone. This spectrum was recorded in the transmission configuration at (p =0°. For comparison, the /7-polarized spectrum obtained by IRRAS (cpi = 80°) of / -NBA adsorbed on a thick Ag layer and the transmission spectrum of / -nitrobenzoate potassium salt in a KBr pellet are also shown. The intensity of the SEIRA spectrum is enhanced about 10-fold relative to the spectrum obtained by IRRAS of this enhancement, a factor of 3 was attributed to the increase in the total surface area. Compared to the transmission spectrum at normal incidence, the enhancement is 200. 

As protective and modifying coatings plasma polymerizations have been suggested for use as laser window coatings, adhesion improvers for polymer fillers, and bonding applications. Plasma polymerization has also been used to surface treat fibres - and films and to chemically modify electrodes. Traditionally, plasma-polymerization coatings have been attractive as membranes, and applications along these lines have been pursued for the preparation of reverse osmosis membranes for water treatment. - ... 

Applications automotive weather seals for doors and windows, coating for hostile environments, column packing, filtration, fittings, marine coatings, pipes, pump, silicon wafer carriers, tubing, wear resistant products ... 

Figure 2 Photoelectric electron injection, (a) Thick metal cathode (b) glass window coated with a semitransparent metal film.

Solar control coating A type of thermal control window coating that consists of a thin film stmc-ture designed to reflect incictait solar radiation and prevrait it from heating the interior of a room while retaining reasonable transmission in the visible radiation spectrum. See also Low-e coating. 

FIGURE 16.6 Intensity of the standard AM 1.5 solar spectrum at various wavelengths, with the photooptic response of the human eye superimposed. It is desirable that window coatings maximize transmission within the photo-optic range but minimize it elsewhere in the spectrum. 

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