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要发展各种尖端工业,就需要有研究各种尖端工业所需的原料——希有元素。研究希有元素是目前迫切任务之一。现在我们就来谈谈有关希有元素锆与铪的地球化学。首次提炼出金属锆是在1914年。锆的比重为6.6,熔点2,500℃。锆主要用来制造各种特殊合金钢,用以提高合金的质量。锆钢的特点是能耐高温,同时具有良好的可塑性。金属锆与镁(40%)的合金可用作无烟闪光(闪光信号及照象)。纯锆具有展性,可用来
To develop all kinds of cutting-edge industries, there is a need to study the raw materials needed for cutting-edge industries-the Greek element. It is one of the urgent tasks to study Greek elements. Now let’s talk about the geochemistry of the elements zirconium and hafnium. The first metal zirconium was extracted in 1914. The zirconium has a specific gravity of 6.6 and a melting point of 2,500 ° C. Zirconium is mainly used to make all kinds of special alloy steel, to improve the quality of the alloy. Zirconium steel is characterized by high temperature, while having good plasticity. Metallic zirconium and magnesium (40%) alloy can be used as a smoke-free flash (flash signal and photo). Pure zirconium is malleable, can be used