| 简介 |
Consists of the development of different inorganic materials, having the capacity to generate visible colors when excited in the infrared region, which can be used to determine the origin of explosives, fuses and ammunition, even after detonation, and in weapons and metal projectiles, thus serving as a safety marking tool thereof. The following were developed : LaNbO4 (called Mark1), BiVO4, Sr3V2O8 and YNbO4 (called Mark2), doped with different rare earth ions (erbium, ytterbium, holmium and thulium). The markers were physically inserted inside the explosives and in the gunpowder and by carburizing and forging in steel or metal alloy, with which the weapon or metal projectile is manufactured. The parameter used to show the presence of the markers in the products, after detonation or scraping of the weapon, was the verification of the color identity of the marker fluorescence, before and after, via laser in the infrared region. |
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