Solubility Of Molybdenum Research Articles

Determination of the solubility of metals in lithium

The solubility of uranium, zirconium, iron, nickel, titanium, molybdenum, niobium and beryllium in lithium at temperatures of 700–1000 ° C was determined to assess the stability of metals in lithium and establish the mechanism of corrosion. It was found that nickel and beryllium have a high solubility (of the order of 1%), iron, zirconium, titanium and uranium are slightly soluble (from hundredths to thousands of one percent) and niobium and molybdenum have a very low solubility (less than l−4%). Crucibles of the lithium to be tested were filled in a special still with distilled lithium and hermetically sealed in a container in a medium of argon. The solubility of the metal to be tested was determined by chemical analysis of rapidly cooled lithium fusions after they had been kept for 50–100 hours in the container at a predetermined temperature. The presence of isothermal transfer of aluminum, beryllium, zirconium and silicon via lithium to steel and iron was discovered. Under these conditions maximum solubility of the metal in lithium was reached far more slowly than in the absence of transfer. Lithium can be purified by getters — uranium and zirconium — slightly soluble in lithium.

Systems Zirconium-Molybdenum and Zirconium-Wolfram

On the basis of metallographic analysis, incipient melting data, thermal analysis work, and X-ray diffraction, phase relationships in the 0 to 50 atomic pct alloy content were carefully resolved. Phase relationships in the higher alloy content regions were outlined. A single intermediate phase, peritectically formed, of the form ZrX2 was established in each system. A eutectic and a eutectoid were found in the zirconium-rich region of both systems. Appreciable solubility of molybdenum and wolfram was found in β zirconium, but only a slight solubility in α zirconium.