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Low-Temperature Synthesis of Actinide Tetraborides by Solid-State Metathesis Reactions
The synthesis of actinide tetraborides including uranium tetraboride (UB,), plutonium tetraboride (PUB,) and thorium tetraboride (ThB{sub 4}) by a solid-state metathesis reaction are demonstrated. The present method significantly lowers the temperature required to {approx_equal}850 C. As an example, when UCl{sub 4}, is reacted with an excess of MgB{sub 2}, at 850 C, crystalline UB, is formed. Powder X-ray diffraction and ICP-AES data support the reduction of UCl{sub 3}, as the initial step in the reaction. The UB, product is purified by washing water and drying.
Date:
December 14, 2004
Creator:
Lupinetti, Anthony J.; Garcia, Eduardo & Abney, Kent D.
System:
The UNT Digital Library