Sentence examples for percent copper from inspiring English sources

These are essentially high-tin alloys with a few percent copper or silver added.

As the salinity was increased, the percent copper retained generally reached a maximum at 0.4 M chloride.

Percent copper ion removals from the aqueous phase decreased, but the biosorbed (solid phase) copper ion concentrations increased with increasing the feed flow rate and Cu II) concentration.

All the Indian metal wrappings consisted of nearly pure silver, while on average, the Persian threads contained nearly two percent copper.

In order to conform to the Coinage Act of 1837, the Morgan dollar contained ninety percent silver and ten percent copper, measured 38.1 mm in diameter and weighed 412.5 gr.

For this purpose, the weight percent of copper and tungsten in the desired composite by Equation 3 is calculated, according to density and volume percent of Cu and W, into percent WtCu = 10.34 and percent WtW = 89.66.

Electrodes were sectioned and the weight percent of copper was measured using an electron probe, to a distance of 100 μm from the surface.

The two founders decided that the metal was too brittle, and augmented the bell metal by about ten percent, using copper.

One percent added to copper increases its strength and hardness with only a small reduction in electrical conductivity.

General classification of the ore minerals of copper copper (percent)* Native copper ore native copper 99.9 Sulfide ores chalcocite 79.9 covellite 66.5 chalcopyrite 34.6 bornite 63.3 enargite 48.4 tetrahedrite 34.8 Oxide ores cuprite 88.8 tenorite 79.9 malachite 57.5 azurite 55.3 chalcanthite 25.5 brochantite 56.2 chrysocolla 33.9 *Approximate.

The exterior is gold plated.: 92.5 percent tin and 7.5percentt copper.