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4 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Cs2LiYCl6 by Materials Project

Cs2LiYCl6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Cs1+ is bonded to twelve equivalent Cl1- atoms to form CsCl12 cuboctahedra that share corners with twelve equivalent CsCl12 cuboctahedra, faces with six equivalent CsCl12 cuboctahedra, faces with four equivalent LiCl6 octahedra, and faces with four equivalent YCl6 octahedra. All Cs–Cl bond lengths are 3.76 Å. Li1+ is bonded to six equivalent Cl1- atoms to form LiCl6 octahedra that share corners with six equivalent YCl6 octahedra and faces with eight equivalent CsCl12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Li–Cl bond lengths are 2.66 Å. Y3+ is bonded to six equivalent Cl1- atoms to form YCl6 octahedra that share corners with six equivalent LiCl6 octahedra and faces with eight equivalent CsCl12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Y–Cl bond lengths are 2.65 Å. Cl1- is bonded in a distorted linear geometry to four equivalent Cs1+, one Li1+, and one Y3+ atom.

36 MATERIALS SCIENCE↗
NASA NTRSDate not supplied

Crystal Growth in the SUBSA furnace in MSG: 2002 to 2022

In 2002, the investigation “Solidification Using a Baffle In Sealed Ampoules (SUBSA)” was the first investigation to utilize the Microgravity Science Glovebox (MSG) Facility on the International Space Station (ISS). The SUBSA furnace was designed for growth of indium antimonide. It features a transparent section, which allows a side view of the melt, the solid-liquid (SL) interface and the growing crystal. In 2002, four Te-doped and three Zn-doped InSb crystals were grown in microgravity. Subsequently, the SUBSA furnace was used in several materials science investigations, including growing the radiation detector materials, InI and Cs2LiYCl6:Ce from the melt and vapor phase (2017 to 2019) and “Brazing of Aluminum alloys in Space (BRAINS)”. A review of the SUBSA furnace features and parameters will be presented, including the design of the growth ampoules, charge preparation, and the procedures used to grow InSb (in 2002) and InI (in 2019).

Aleksandar Ostrogorsky↗
NASA NTRSDate not supplied

Crystal Growth in the SUBSA furnace at the International Space Station (ISS)

In 2002, our investigation Solidification Using a Baffle In Sealed Ampoules (SUBSA) was the first investigation to utilize the Microgravity Science Glovebox (MSG) Facility on the International Space Station (ISS). The SUBSA furnace was designed for growth of indium antimonide. It features a transparent section, which allows a side view of the melt, the solid-liquid (SL) interface and the growing crystal. In 2002, four Te- doped and three Zn-doped InSb crystals were grown in microgravity. Subsequently, the SUBSA furnace was used in several other materials science investigations, including growing the radiation detector materials InI and Cs2LiYCl6:Ce from the melt and vapor phase (2017 to 2019) and Brazing of Aluminum alloys in Space (BRAINS). A review of the SUBSA furnace features and parameters will be presented, including the design of the growth ampoules, charge preparation, and the procedures used to grow InSb (in 2002) and InI (in 2019).

A.G. Ostrogorsk↗