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C oil coating: more from less

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Describes how BASF have managed to reduce the number of primary colours in their range, while still providing a very wide range of final shades, thanks to mixing & blending.

C-axis orientation of AlN films prepared by ECR PECVD

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AlN films were deposited on Si substrates at low 300-500 °C by electron cyclotron resonance plasma-enhanced CVD (ECR PECVD) using trimethyl aluminium, nitrogen & hydrogen gases. Degree of c-axis orientation, crystallinity, functional groups and chem. composition of films were investigated for various deposition conditions. Degree of c-axis orientation depends on substrate surface condition and improves with increasing substrate temp.and microwave power. c-axis oriented (_ = 4.3°) AlN film was prepared at 500 °C. System design allows the precursor to be dissociated efficiently by ECR plasma.

C-BN thin film formation in a hybrid r.f.-PLD technique

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c-Boron-aluminium nitride alloys prepared by ion-beam assisted deposition

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Properties of B-AlN thin films prepared by ion-beam-assisted deposition (IBAD) are reported. Ratio of N to Al + B as determined by Auger electron spectroscopy was consistently 1.0 in all films. c-lattice constant of alloy decreased linearly upto c. 10% BN, suggesting formation of single- phase AlN-wurtzite-BN alloy. Hardness of films was 20-25 GPa, by nanoindentation, and did not change significantly with amount of B. Etch rate in warm phosphoric acid of alloy containing 9% BN was order of magnitude lower than that of pure AlN.

C-HAp composite layers deposited onto AISI 316L austenitic steel.

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C-SAM to maintain quality standards

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Micro-acoustic meas'ts can be used to report defects in surface coatings, e.g cobalt matrix diamond composites on oil well drill bits.

C/SiC/Si-Mo-B/glass multilayer oxidation protective coating for carbon/carbon composites.

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C2H6 as precursor for low pressure chemical vapor deposition of TiCNB hard coatings.

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C83-1616/04615. The Photoetching of polycrystalline CdS anodes by cysteine

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1 N characteristics of polycrystalline CdS under illumination in aq. basic solution are improved after photoetching by cysteine. Photoelectrochemical improvements originate most probably from photo oxidation of illuminated CdS in contact with H2O/OH- since improvements occur also in basic aq. soln. though to lesser extent.

Cabinet, Speaker Device Constituent Member and Process for Producing them.

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Magnesium sheet is covered with aluminium which is then anodised to form alumina. Possibly plasma electrolytic oxidation

Cable covered in solid lubricant

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Cable with sheath made by extruder, followed by cooling vessel is passed trough preparatory station to apply treatment to sheath; and lubricant is deposited on sheath in downstream deposition station.

Cable semiconducting shields

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Semiconducting composition comprising olefinic polymer and 25-45% carbon black.

CAD in finishing and effluent treatment

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Use of computer-aided systems in design of finishing and effluent treatment processes is discussed. Example is given of use to design flow sheet for ion exchange and effluent treatment.

CAD/CAM methods for fabricating stainless steel painting masks

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Title method is alternative to electroforming in terms of cost, ease of repair, welding to it. Though both approaches have their strengths, availability of CAD/CAM has made machined masks a much more attractive proposition than hitherto. Photos show masks in use.

Cadmium & Cyanide Recovery Using Combined Ion Exchange & Membrane Extraction

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Detailed results on performance of ion exchange units & their regeneration with data on C oxide pretreatment. Results show that method is sensitive to CN:Cd molar ratio, being best at 4:1 or less. Outside this CN leakage occurs through membranes. 6 refs.