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  2. Pyrotechnic colorant - Wikipedia

    en.wikipedia.org/wiki/Pyrotechnic_colorant

    Copper(I) oxide: Cu 2 O Lowest cost blue colorant. Blue Copper(II) oxide: CuO Used with chlorine donors. Excellent in composite stars. Blue Basic copper carbonate CuCO 3 ·Cu(OH) 2, 2 CuCO 3 ·Cu(OH) 2: Occurs naturally as malachite and azurite. Good with ammonium perchlorate and for high-temperature flames with presence of hydrogen chloride ...

  3. Lithium oxide - Wikipedia

    en.wikipedia.org/wiki/Lithium_oxide

    Burning lithium metal produces lithium oxide. Lithium oxide forms along with small amounts of lithium peroxide when lithium metal is burned in the air and combines with oxygen at temperatures above 100 °C: [3] 4Li + O 2 → 2 Li 2 O. Pure Li 2 O can be produced by the thermal decomposition of lithium peroxide, Li 2 O 2, at 450 °C [3] [2] 2 Li ...

  4. Thermite - Wikipedia

    en.wikipedia.org/wiki/Thermite

    For this, the temperature must be high enough to melt both reaction products, the resulting metal and the fuel oxide. Too low a temperature produces a mixture of sintered metal and slag; too high a temperature (above the boiling point of any reactant or product) leads to rapid production of gas, dispersing the burning reaction mixture ...

  5. High-temperature oxidation - Wikipedia

    en.wikipedia.org/wiki/High-temperature_oxidation

    High temperature oxidation is generally occurs via the following chemical reaction between oxygen (O 2) and a metal M: [2]. nM + 1/2kO 2 = M n O k. According to Wagner's theory of oxidation, oxidation rate is controlled by partial ionic and electronic conductivities of oxides and their dependence on the chemical potential of the metal or oxygen in the oxide.

  6. Liquid metal embrittlement - Wikipedia

    en.wikipedia.org/wiki/Liquid_metal_embrittlement

    Cracking can occur catastrophically and very high crack growth rates have been measured. [5] Similar metal embrittlement effects can be observed even in the solid state, when one of the metals is brought close to its melting point; e.g. cadmium-coated parts operating at high temperature. This phenomenon is known as solid metal embrittlement. [6]

  7. Chemical coloring of metals - Wikipedia

    en.wikipedia.org/wiki/Chemical_coloring_of_metals

    Chemical coloring of metals is the process of changing the color of metal surfaces with different chemical solutions. The chemical coloring of metals can be split into three types: electroplating – coating the metal surface with another metal using electrolysis. patination – chemically reacting the metal surface to form a colored oxide or ...

  8. Spodumene - Wikipedia

    en.wikipedia.org/wiki/Spodumene

    As of 2021, the Australian company AVZ Minerals [9] is developing the Manono Lithium and Tin project and has a resource size of 400 million tonnes of high grade low impurities at 1.65% lithium oxide (Li 2 O) [10] spodumene hard-rock based on studies and drilling of Roche Dure, one of several pegmatites in the deposit.

  9. Lithium nickel cobalt aluminium oxides - Wikipedia

    en.wikipedia.org/wiki/Lithium_nickel_cobalt...

    The lithium nickel cobalt aluminium oxides (abbreviated as Li-NCA, LNCA, or NCA) are a group of mixed metal oxides. Some of them are important due to their application in lithium-ion batteries . NCAs are used as active material in the positive electrode (which is the cathode when the battery is discharged).

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