Sentence examples for iron substitutes from inspiring English sources

Clay minerals are composed essentially of silica, alumina or magnesia or both, and water, but iron substitutes for aluminum and magnesium in varying degrees, and appreciable quantities of potassium, sodium, and calcium are frequently present as well.

The firebricks were then replaced with cast iron substitutes that melted in the intense heat of the firebox, which were in turn replaced by thicker 9 inches firebricks.

The name forsterite is restricted to those species with no more than 10 percent iron substituting for magnesium; fayalite (from Fayal Island in the Azores, where it was believed to occur in a local volcanic rock but probably was obtained from slag brought to the island as ship's ballast) is restricted to species with no more than 10 percent magnesium substituting for iron.

A systematic study focusing on the crystallographic, magnetic and magnetocaloric properties of cobalt and iron substituted MnB was conducted.

(b) Normalized EXAFS and corresponding radial structure functions (uncorrected for phase shift of backscattering atoms) for iron in sediment samples from core SC4 (at 1.4 and 34.5 cm) compared to reference spectra of crystalline pyrite (FeS2 s)) and of iron substituted in reference illite IMt-1 (Clay Minerals Source Repository).

Despite the need of MAP for an iron substituting system, the function and the regulation of the genes of LSP14 and LSP15 is unclear.

As ferrous iron (Fe2+) substitutes for manganese cations (Mn2+) in the rhodochrosite structure, the formula for the mineral might be given in more general terms namely, (Mn, Fe CO3.

Ferrous iron commonly substitutes for some of the magnesium in dolomite, and a complete series very likely extends between dolomite and ankerite [∼CaFe(CO3 2].

Titanium, magnesium, or iron atoms substituting for silicon atoms also have been reported, but anionic substitution (i.e., substitution for the negative ion, oxygen) is limited because the linkage of the tetrahedrons is disrupted.

McCain left the media out of his iron triangle, substituting "money," so that his three corners are now "money, lobbyists and legislation".

Also in 1850, after a cumbersome design had been officially accepted by the Great Exhibition's organizers, Paxton's inspired plan for a building of prefabricated elements of sheet glass and iron was substituted.