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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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23 records · Page 2
All sourcesNASA NTRSDOE OSTI
NASA NTRS1973

NASA superconducting magnetic mirror facility

The design details and initial test results of a superconducting magnetic mirror facility that has been constructed at NASA Lewis Research Center for use in thermonuclear research are summarized. The magnet system consists of four solenoidal coils which are individually rated at 5.0 T. Each coll is composed of an inner, middle, and outer winding. The inner winding is wound of stabilized Nb3Sn superconducting ribbon, and the middle and outer windings are wound of stabilized Nb-Ti superconducting wire. When arranged in the mirror geometry, the four coils will produce 8.7 T at the mirrors and a 1.8 mirror ratio. The magnet has a 41-cm diameter clear bore which is open to atmosphere. Distance between the mirrors is 111 cm. Presently there are only three magnets in the facility; the fourth magnet is being rebuilt.

Reinmann, J. J.↗
NASA NTRS1973

NASA superconducting magnetic mirror facility

This report summarizes the design details and initial test results of a superconducting magnetic mirror facility that has been constructed at NASA Lewis Research Center for use in thermonuclear research. The magnet system consists of four solenoidal coils which are individually rated at 5.0 T. Each coil is composed of an inner, middle, and outer winding. The inner winding is wound of stabilized Nb3SN superconducting ribbon, and the middle and outer windings are wound of stabilized Nb-Ti superconducting wire. When arranged in the mirror geometry, the four coils will produce 8.7 T at the mirrors and a 1.8 mirror ratio. The magnet has a 41-cm diameter clear bore which is open to atmosphere. Distance between the mirrors is 111 cm. Presently there are only three magnets in the facility; the fourth magnet is being rebuilt.

Reinmann, J. J.↗
DOE OSTI2022

White Paper on High Temperature Superconducting Bi-2212 Magnets for Energy Frontier Circular Colliders

As the only high-temperature superconducting (HTS) material available as an isotropic, twisted, multifilamentary round wire, Bi-2212 is very promising for expanding the high-field superconducting accelerator magnet toolbox beyond the round-wire, isotropic Nb-Ti and Nb3Sn conductors used by HEP so far. In this paper, we describe the important roles that Bi-2212 might play for future high energy circular colliders including both high energy proton and muon colliders. We describe its present technology status (conductor development, magnet design concepts, prototype magnet status) and then provide a ten-year plan for >15 T accelerator magnets and >25 T solenoid magnets within an integrated strategy to engage industry and the entire US and international scientific enterprise interested in HTS magnet applications.

43 PARTICLE ACCELERATORS↗
DOE OSTI2020

Materials Data on Ti3Nb by Materials Project

Ti3Nb is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Ti sites. In the first Ti site, Ti is bonded to eight Ti and four equivalent Nb atoms to form TiTi8Nb4 cuboctahedra that share corners with twelve equivalent TiTi8Nb4 cuboctahedra, edges with eight equivalent NbTi12 cuboctahedra, edges with sixteen TiTi8Nb4 cuboctahedra, faces with four equivalent NbTi12 cuboctahedra, and faces with fourteen TiTi8Nb4 cuboctahedra. There are four shorter (2.80 Å) and four longer (2.99 Å) Ti–Ti bond lengths. All Ti–Nb bond lengths are 2.99 Å. In the second Ti site, Ti is bonded to eight equivalent Ti and four equivalent Nb atoms to form distorted TiTi8Nb4 cuboctahedra that share corners with four equivalent TiTi8Nb4 cuboctahedra, corners with eight equivalent NbTi12 cuboctahedra, edges with twenty-four TiTi8Nb4 cuboctahedra, faces with six equivalent NbTi12 cuboctahedra, and faces with twelve TiTi8Nb4 cuboctahedra. All Ti–Nb bond lengths are 2.80 Å. Nb is bonded to twelve Ti atoms to form NbTi12 cuboctahedra that share corners with four equivalent NbTi12 cuboctahedra, corners with eight equivalent TiTi8Nb4 cuboctahedra, edges with eight equivalent NbTi12 cuboctahedra, edges with sixteen equivalent TiTi8Nb4 cuboctahedra, faces with four equivalent NbTi12 cuboctahedra, and faces with fourteen TiTi8Nb4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti3Nb by Materials Project

Ti3Nb crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Ti sites. In the first Ti site, Ti is bonded in a 12-coordinate geometry to twelve Ti atoms. There are a spread of Ti–Ti bond distances ranging from 2.82–3.24 Å. In the second Ti site, Ti is bonded in a 12-coordinate geometry to seven Ti and three equivalent Nb atoms. All Ti–Ti bond lengths are 2.90 Å. There are two shorter (2.84 Å) and one longer (3.01 Å) Ti–Nb bond lengths. Nb is bonded in a 12-coordinate geometry to six equivalent Ti and four equivalent Nb atoms. All Nb–Nb bond lengths are 2.90 Å.

36 MATERIALS SCIENCE↗