Abstract
No diagram has been found for this system. Optical and X-ray examination of a 85.1 wt% alloy showed the existence of the compound Be2Rh with a powder pattern similar to Be2Ir [1]. This has been confirmed more recently in an investigation of alloys containing up to 14.3 wt% beryllium, using X-ray, metallography and hardness tests, although the authors give the compound as RhBe~2; the compound RhBe was also confirmed, and a eutectic near 13.5 wt% beryllium is suggested. The alloys used were prepared either by vacuum diffusion in a beryllia crucible at 1500 to 1700 K, or by arc-melting under an argon pressure of ~300 Torr. The weight of beryllium in the samples was determined to an accuracy of 1 x 10−4 g by weighing the samples before and after alloying [2]. A melt of 10 wt% rhodium (1 at%) slowly cooled from the melt was found to be two-phased with a eutectic network [3]. Other compounds reported are RhBe6.6 and Rh2Be17 [4, 5]. A Large number of compounds has been examined for superconductivity, none of which was found to have this property; the following were claimed to be prepared and examined: BeRh, Be2Rh, Be4.4Rh, Be5Rh, Be6.5Rh, Be13Rh, Be22Rh, and Be49Rh [6].
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Watts, G.R. (1991). Alloys with Alkaline Earth Metals. In: Swars, K. (eds) Rh Rhodium. Gmelin Handbook of Inorganic and Organometallic Chemistry - 8th edition, vol R-h / R-h / A / 1. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-06411-5_12
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