National Central University

Sheng-Long Lee

Che-Wei Hsu

Jing-Chie Lin

Rong-Ruey Jeng

Chien-Wei Chen

Yu-Chou Tsai

Chia-Wang Weng

Chien-Chang Chiang

Ten-Fu Wu

Fu-Kai Hsu

Cheng-Yu Chou

Cheng-En Jiang

Yin-Chun Cheng

In a method of synthesizing magnesium-cobalt pentahydride, a MgCoalloy is synthesized by completely reacting cobalt (Co) metal and excess magnesium (Mg) metal, followed by an isothermal evaporation casting process (IECP) for removing the residual magnesium metal. Then, the magnesium-cobalt alloy and another magnesium metal are ball-milled and hydrogenated to synthesize the magnesium-cobalt pentahydride (MgCoH).

Method of synthesizing magnesium-cobalt pentahydride

A method for making Mg(magnesium)-based intermetallic compound uses a thermal process during a melting process to produce largely the Mg-based intermetallic compound. The vapor pressure of Mg is high, thereby Mg is prone to be vaporized from a melt and a wrought solid alloy in the melting process of high temperature, for purifying the wrought Mg-based intermetallic compound. The method may simplify the process and devices for making the Mg-based intermetallic compound, and produce efficiently a larger of high purity Mg-based intermetallic compound.

Method for making Mg-based intermetallic compound

A manufacturing method for an isothermal evaporation casting process is disclosed and to design the manufacturing method for the simple atmospheric casting. The present invention can melt the Mg&#x2014;Ni alloy with the aspect of totally different melting points thereof, and the other elements can be added during melting simultaneously. Through the Mg&#x2014;Ni alloy with a suitable weight ratio, the eutectic alloy of Mg/MgNi and high purified &#x3b3;-phase MgNi can be made. Then adding other elements are to produce the composition of Mg/Ni/M. By way of the manufacturing method of the present invention, the melting equipment is simplified; and, through different manufacturing steps, the purposes of time-saving and low cost are reached; further that, a large amount of the eutectic alloy of Mg/MgNi with different kinds of ratios of Mg, high purified &#x3b3;-phase MgNi, or the composition of Mg/Ni/M can be obtained.

Manufacturing method for isothermal evaporation casting process

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Jhongli, Taiwan

Sheng-Long Lee