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Plutonium monoarsenide was studied under high pressure up to 45 GPa using a diamond anvil cell in an energy dispersive X-ray diffraction facility. The compound, which has the NaCl-type structure at ambient pressure, undergoes a first-order crystallographic phase transition at around 35 GPa. The high pressure phase could be indexed in the cubic CsCl type. The volume collapse at the phase transition is 9%. From the pressure volume relationship a bulk modulus of B(0)=68.6 GPa was determined with a pressure derivative of B'(0)=3.3. These results are compared with those obtained with other actinide monoarsenides.

Additional information

Authors: DABOS-SEIGNON S, JRC Karlsruhe (DE);BENEDICT U, JRC Karlsruhe (DE);SPIRLET J C, JRC Karlsruhe (DE);PAGES M, Institut Curie, Paris (FR)
Bibliographic Reference: Article: Journal of the Less-Common Metals, Vol. 153 (1989) pp. 133-141
Record Number: 199010496 / Last updated on: 1994-12-01
Original language: en
Available languages: en
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