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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.

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6 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2026

Evaluating Lithium-Lead Mixtures for Increased Tritium Breeding in Fusion Energy Blanket Systems: Exploring the Impact of Composition and Temperature

This project investigates hypo- and hyper-eutectic liquid lithium-lead (PbLi) mixtures as a coolant in fusion blanket systems, with a focus on testing the compatibility of compositions with better tritium breeding ratios (TBR). The 12-month study concentrates on static corrosion experiments, comparing silicon carbide (SiC) corrosion rates in Li-rich and eutectic Li-Pb mixtures, and examining interactions between Mo and PbLi. The research seeks to determine the maximum operating temperatures for this material combination, acknowledging the balance between Li-Pb melting temperature and achievable TBR to unlock new opportunities for blanket design. This work lays the groundwork for future collaboration between Kyoto Fusioneering and Oak Ridge National Laboratory (ORNL). Findings could enhance the TBR of fusion blanket designs, and impact fusion energy development by confirming material compatibility between different Li-Pb mixtures with SiC and Mo at higher temperatures, including at temperatures relevant for very high-temperature blankets (1,000 °C), which could enable higher electricity conversion efficiencies and commercial applications using process heat.

70 PLASMA PHYSICS AND FUSION TECHNOLOGY↗
DOE OSTI2020

Materials Data on LiPb by Materials Project

PbLi is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Li is bonded in a body-centered cubic geometry to eight equivalent Pb atoms. All Li–Pb bond lengths are 3.09 Å. Pb is bonded in a body-centered cubic geometry to eight equivalent Li atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li8Pb3 by Materials Project

Li8Pb3 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of one Li8Pb3 sheet oriented in the (0, 0, 1) direction. there are four inequivalent Li sites. In the first Li site, Li is bonded to three equivalent Li and four Pb atoms to form distorted LiLi3Pb4 tetrahedra that share corners with four LiLi3Pb4 tetrahedra, edges with nine LiLi3Pb4 tetrahedra, and faces with three equivalent LiLi4Pb4 tetrahedra. All Li–Li bond lengths are 2.90 Å. There are one shorter (2.86 Å) and three longer (2.92 Å) Li–Pb bond lengths. In the second Li site, Li is bonded in a distorted trigonal non-coplanar geometry to one Li and three equivalent Pb atoms. The Li–Li bond length is 3.04 Å. All Li–Pb bond lengths are 2.98 Å. In the third Li site, Li is bonded to four equivalent Li and four Pb atoms to form a mixture of distorted edge, face, and corner-sharing LiLi4Pb4 tetrahedra. There are one shorter (2.86 Å) and three longer (2.93 Å) Li–Li bond lengths. There are three shorter (2.90 Å) and one longer (2.91 Å) Li–Pb bond lengths. In the fourth Li site, Li is bonded in a 10-coordinate geometry to eight Li and six Pb atoms. There are a spread of Li–Pb bond distances ranging from 3.34–3.37 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 7-coordinate geometry to ten Li atoms. In the second Pb site, Pb is bonded in a body-centered cubic geometry to fourteen Li atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li3Pb by Materials Project

Li3Pb is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Li sites. In the first Li site, Li is bonded to four equivalent Li and four equivalent Pb atoms to form a mixture of distorted edge, face, and corner-sharing LiLi4Pb4 tetrahedra. All Li–Li bond lengths are 2.90 Å. All Li–Pb bond lengths are 2.90 Å. In the second Li site, Li is bonded in a 12-coordinate geometry to eight equivalent Li and six equivalent Pb atoms. There are four shorter (3.33 Å) and two longer (3.38 Å) Li–Pb bond lengths. Pb is bonded in a distorted body-centered cubic geometry to fourteen Li atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li7Pb2 by Materials Project

Li7Pb2 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. there are four inequivalent Li sites. In the first Li site, Li is bonded in a 8-coordinate geometry to eight Li and six equivalent Pb atoms. There are two shorter (2.79 Å) and six longer (2.88 Å) Li–Li bond lengths. All Li–Pb bond lengths are 3.41 Å. In the second Li site, Li is bonded in a distorted trigonal non-coplanar geometry to one Li and three equivalent Pb atoms. All Li–Pb bond lengths are 2.85 Å. In the third Li site, Li is bonded in a 1-coordinate geometry to four equivalent Pb atoms. There are one shorter (2.92 Å) and three longer (3.18 Å) Li–Pb bond lengths. In the fourth Li site, Li is bonded to three equivalent Li and four equivalent Pb atoms to form a mixture of distorted edge, face, and corner-sharing LiLi3Pb4 tetrahedra. There are one shorter (2.91 Å) and three longer (2.98 Å) Li–Pb bond lengths. Pb is bonded in a 8-coordinate geometry to fourteen Li atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiPb3 by Materials Project

LiPb3 is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Li is bonded to twelve Pb atoms to form LiPb12 cuboctahedra that share corners with four equivalent LiPb12 cuboctahedra, edges with eight equivalent LiPb12 cuboctahedra, edges with sixteen equivalent PbLi4Pb8 cuboctahedra, faces with four equivalent LiPb12 cuboctahedra, and faces with eight equivalent PbLi4Pb8 cuboctahedra. There are four shorter (3.39 Å) and eight longer (3.44 Å) Li–Pb bond lengths. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded to four equivalent Li and eight Pb atoms to form distorted PbLi4Pb8 cuboctahedra that share corners with twelve equivalent PbLi4Pb8 cuboctahedra, edges with eight equivalent LiPb12 cuboctahedra, edges with eight equivalent PbLi4Pb8 cuboctahedra, faces with four equivalent LiPb12 cuboctahedra, and faces with ten equivalent PbLi4Pb8 cuboctahedra. There are four shorter (3.39 Å) and four longer (3.44 Å) Pb–Pb bond lengths. In the second Pb site, Pb is bonded in a distorted square co-planar geometry to four equivalent Li and eight equivalent Pb atoms.

36 MATERIALS SCIENCE↗