Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “RhCl3”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

3 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on RhCl3 by Materials Project

RhCl3 is Aluminum trichloride structured and crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of one RhCl3 sheet oriented in the (0, 0, 1) direction. Rh3+ is bonded to six Cl1- atoms to form edge-sharing RhCl6 octahedra. All Rh–Cl bond lengths are 2.37 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Rh3+ atoms. In the second Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Rh3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on RhSCl5 by Materials Project

RhCl3SCl2 is Magnesium tetraboride-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of twelve sulfur dichloride molecules and two RhCl3 clusters. In each RhCl3 cluster, there are six inequivalent Rh3+ sites. In the first Rh3+ site, Rh3+ is bonded to five Cl1- atoms to form edge-sharing RhCl5 square pyramids. There are a spread of Rh–Cl bond distances ranging from 2.33–2.45 Å. In the second Rh3+ site, Rh3+ is bonded to five Cl1- atoms to form edge-sharing RhCl5 square pyramids. There are a spread of Rh–Cl bond distances ranging from 2.34–2.45 Å. In the third Rh3+ site, Rh3+ is bonded to five Cl1- atoms to form edge-sharing RhCl5 square pyramids. There are a spread of Rh–Cl bond distances ranging from 2.34–2.45 Å. In the fourth Rh3+ site, Rh3+ is bonded to five Cl1- atoms to form edge-sharing RhCl5 square pyramids. There are a spread of Rh–Cl bond distances ranging from 2.33–2.45 Å. In the fifth Rh3+ site, Rh3+ is bonded to five Cl1- atoms to form edge-sharing RhCl5 square pyramids. There are a spread of Rh–Cl bond distances ranging from 2.34–2.45 Å. In the sixth Rh3+ site, Rh3+ is bonded to five Cl1- atoms to form edge-sharing RhCl5 square pyramids. There are a spread of Rh–Cl bond distances ranging from 2.34–2.45 Å. There are eighteen inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Rh3+ atom. In the second Cl1- site, Cl1- is bonded in an L-shaped geometry to two Rh3+ atoms. In the third Cl1- site, Cl1- is bonded in a water-like geometry to two Rh3+ atoms. In the fourth Cl1- site, Cl1- is bonded in an L-shaped geometry to two Rh3+ atoms. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one Rh3+ atom. In the sixth Cl1- site, Cl1- is bonded in a water-like geometry to two Rh3+ atoms. In the seventh Cl1- site, Cl1- is bonded in a water-like geometry to two Rh3+ atoms. In the eighth Cl1- site, Cl1- is bonded in a single-bond geometry to one Rh3+ atom. In the ninth Cl1- site, Cl1- is bonded in an L-shaped geometry to two Rh3+ atoms. In the tenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Rh3+ atom. In the eleventh Cl1- site, Cl1- is bonded in a water-like geometry to two Rh3+ atoms. In the twelfth Cl1- site, Cl1- is bonded in an L-shaped geometry to two Rh3+ atoms. In the thirteenth Cl1- site, Cl1- is bonded in an L-shaped geometry to two Rh3+ atoms. In the fourteenth Cl1- site, Cl1- is bonded in an L-shaped geometry to two Rh3+ atoms. In the fifteenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Rh3+ atom. In the sixteenth Cl1- site, Cl1- is bonded in a water-like geometry to two Rh3+ atoms. In the seventeenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Rh3+ atom. In the eighteenth Cl1- site, Cl1- is bonded in a water-like geometry to two Rh3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2022

Bulk-like first-order magnetoelastic transition in FeRh particles

Near-equiatomic, chemically-ordered iron-rhodium (FeRh) alloy is a fundamentally interesting material that may become useful in niche applications making use of its unique magneto functional phenomena, for example, the giant inverse magnetocaloric effect near room temperature that is associated with a sharp first-order magnetic phase transition. The nearly discontinuous antiferromagnetic-ferromagnetic phase transformation in bulk FeRh is well-known; however, the transition broadens considerably in fine particles and films with thickness less than 50 nm, precluding their potential applications. Here, we report an abrupt, bulk-like first-order magnetoelastic transformation in powders consisting of sub-micron particles of nearly equiatomic FeRh compound synthesized via solid-state mechanochemical co-reduction of FeF 2 and RhCl3 and subsequent heat treatments. In this work, we demonstrate that annealing at temperatures ranging from 600 °C to 800 °C enables tailoring phase content, particle size, and magnetic properties of the powders. A maximum magnetic-field-induced entropy change of ~10 J/kg K at μ0ΔH = 1 T has been achieved in powders annealed at 800 °C. The retention of extraordinary responsiveness in sub-micron particles of FeRh is likely to open doors for system component fabrication using additive manufacturing methods, along with new opportunities to employ FeRh in theranostics.

36 MATERIALS SCIENCE↗