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Chondrite meteorite with calcium–aluminium-rich inclusions seen as white specks. A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion (CAI) is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites.
The following inclusion types can also be found in aluminium alloys: alumina needles (Al 2 O 3), nitrides (AlN), iron oxides (FeO), manganese oxides (MnO), fluorides (Na 3 AlF 6, NaF, CaF 2, …), aluminium borides (AlB 2, AlB 12), borocarbides (Al 4 C 4 B). Bone ash (Ca 3 (PO 4) 2) sometimes added to patch cracks in the trough can be found as ...
Inclusion Compound: A complex in which one component (the host) forms a cavity or, in the case of a crystal, a crystal lattice containing spaces in the shape of long tunnels or channels in which molecular entities of a second chemical species (the guest) are located. There is no covalent bonding between guest and host, the attraction being ...
Al-Ca composite is a high-conductivity, high-strength, lightweight composite consisting of sub-micron-diameter pure calcium metal filaments embedded inside a pure aluminium metal matrix. The material is still in the development phase, but it has potential use as an overhead high-voltage power transmission conductor . [ 1 ]
Solutions of metal aquo complexes are acidic owing to the ionization of protons from the water ligands. In dilute solution chromium(III) aquo complex has a pK a of about 4.3, affording a metal hydroxo complex: [Cr(H 2 O) 6] 3+ ⇌ [Cr(H 2 O) 5 (OH)] 2+ + H + Thus, the aquo ion is a weak acid, of comparable strength to acetic acid (pK a of about ...
Calprotectin has a high affinity for calcium, zinc, iron, and manganese. [10] [11] [17] [6] Each of S100A8 and S100A9 contain two EF-hand type Ca 2+ binding sites, [9] [3] and calprotectin is able to bind a total of four calcium ions per dimer or eight calcium ions per tetramer. [18]
Ettringite is a hydrous calcium aluminium sulfate mineral with formula: Ca 6 Al 2 (SO 4) 3 (OH) 12 ·26H 2 O.It is a colorless to yellow mineral crystallizing in the trigonal system.The prismatic crystals are typically colorless, turning white on partial dehydration.
Calcium aluminosilicate, an aluminosilicate compound with calcium cations, most typically has formula CaAl 2 Si 2 O 8. [1] In minerals, as a feldspar, it can be found as anorthite, an end-member of the plagioclase series.
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