Ammonia nitrate, potassium chloride, and aluminum powder.
硝酸氨 氯化钾 还有铝粉。
科学大揭秘
For example, aluminum powders are preferred for glass surfaces and brass, whereas granulated jet black powder is used on silvery surfaces to create better contrast.
例如,铝粉是玻璃表面和黄铜的首选,而粒状喷射黑粉用于银色表面以产生更好的对比度。
英语百科
Aluminium powder
Aluminium powder is powdered aluminium. This was originally produced by mechanical means using a stamp mill to create flakes. Subsequently, a process of spraying molten aluminium to create a powder of droplets was developed by E. J. Hall in the 1920s. The resulting powder might then be processed further in a ball mill to flatten it into flakes for use as a coating or pigment.