Three crystals of sodium tungsten bronze, showing its lustre and colouration.
Sodium tungsten bronze is a form of insertion compound with the formula NaxWO3, where x is equal to or less than 1. So named because of its metallic lustre, its electrical properties range from semiconducting to metallic depending on the concentration of sodium ions present; it can also exhibit superconductivity.
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Sodiumtungstenbronze is a form of insertion compound with the formula NaxWO3, where x is equal to or less than 1. So named because of its metallic lustre...
H3PW12O40. Tungsten trioxide can form intercalation compounds with alkali metals. These are known as bronzes; an example is sodiumtungstenbronze. In gaseous...
aqueous sodium carbonate forming sodium tungstate, a procedure used for recovery of scrap cemented carbide due to its selectivity. Tungsten carbide has...
in these families. These include Tetragonal KMo 4O 6 K xMoO 2−δ. Sodiumtungstenbronze – Chemical intercalation compound Onoda, M.; Toriumi, K.; Matsuda...
positive when the field is applied along the a-axis and the c-axis. Sodiumtungstenbronze Na xWO 3, a golden to purple metallic-looking compound. Magnetochromism...
This transition they called martensitic. They suggested looking at sodiumtungstenbronze and InTl alloy. They realised that the free electrons in the metal...
leaks, the hot tungsten filament reacts with air, yielding an aerosol of brown tungsten nitride, brown tungsten dioxide, violet-blue tungsten pentoxide, and...
appearance of bronze in the fifth millennium BCE. Subsequent developments include the production of early forms of steel; the discovery of sodium—the first...
alum, chrome alum, sodium chloride, and certain salts of aluminium, chromium, copper, iron, iodine, potassium, sodium, tungsten, and tin. Iodine is often...
steel was quickly replaced by tungsten carbide steel, developed by Taylor and White in 1900, in which they doubled the tungsten content and added small amounts...
of extraction of other metals such as lead, copper, tin, molybdenum and tungsten, though the refining-to-mining ratio depends on the country. Bismuth travels...
The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). Together with...
sodium fluoride gradually becomes biologically inactive in the presence of calcium compounds. It has also been shown to be more effective than sodium...
identical to that of tungsten at 19.25 g/cm3; as such, tungsten has been used in the counterfeiting of gold bars, such as by plating a tungsten bar with gold...
Carbide Brazing Alloy F Bronze High Temperature Alloy for Tungsten Carbide Brazing D Bronze High Temperature Alloy for Tungsten Carbide Brazing Silvaloy...
between potassium and sodium. Sodium was first isolated by Davy in the same year by passing an electric current through molten sodium hydroxide (NaOH). When...
University of Rennes, working on "nonstoichiometry in vanadium and tungstenbronzes, two-dimensional oxyhalogenides, borides, and silicides, magnetic spinels"...
prepared until 31 years later, by Deville. By electrolyzing a mixture of sodium chloride and aluminium chloride containing approximately 10% silicon, he...
lava, rich in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. It is commonly found within the margins of rhyolitic lava...
materials, such as AlN and ZnO. The families of ceramics with perovskite, tungsten-bronze, and related structures exhibit piezoelectricity: Lead zirconate titanate...
temperatures, compression and electrical stress. Alumina, silicon carbide, and tungsten carbide are made from a fine powder of their constituents in a process...
composition of the abundant heavy gangue rock (the "Tungsten of Bastnäs", which despite its name contained no tungsten), now known as cerite, that he had in his...
attaching and detaching) for any transition metal aquo complex. Adding aqueous sodium hydroxide causes the precipitation of light blue solid copper(II) hydroxide...
metal arc welding, also known as MIG/MAG welding Gas tungsten arc welding, also known as tungsten inert gas (TIG) welding Plasma arc welding Flux-cored...
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