Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Ca(BO3)3”

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.

Materials Data on Ca(BO3)3 by Materials Project

Ca(BO3)3 crystallizes in the triclinic P-1 space group. The structure is one-dimensional and consists of one Ca(BO3)3 ribbon oriented in the (1, 0, 0) direction. Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.43–2.79 Å. There are three inequivalent B sites. In the first B site, B is bonded in a trigonal planar geometry to three O atoms. There are a spread of B–O bond distances ranging from 1.36–1.40 Å. In the second B site, B is bonded to four O atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.42–1.58 Å. In the third B site, B is bonded to four O atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.41–1.54 Å. There are nine inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to two B atoms. In the second O site, O is bonded in a distorted bent 120 degrees geometry to one Ca and two B atoms. In the third O site, O is bonded in a distorted bent 120 degrees geometry to two equivalent Ca and two B atoms. In the fourth O site, O is bonded in a single-bond geometry to one B atom. In the fifth O site, O is bonded in a distorted bent 120 degrees geometry to one Ca and one B atom. In the sixth O site, O is bonded in a distorted water-like geometry to one Ca and one B atom. In the seventh O site, O is bonded in a distorted single-bond geometry to two equivalent Ca and one B atom. In the eighth O site, O is bonded in a single-bond geometry to one B atom. In the ninth O site, O is bonded in a single-bond geometry to one Ca atom.

36 MATERIALS SCIENCE↗

Materials Data on NaCa4(BO3)3 by Materials Project

NaCa4(BO3)3 crystallizes in the orthorhombic Ama2 space group. The structure is three-dimensional. Na1+ is bonded in a 4-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.51–3.02 Å. There are three inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.39–2.53 Å. In the second Ca2+ site, Ca2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ca–O bond distances ranging from 2.38–2.90 Å. In the third Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.36–2.58 Å. There are three inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.37 Å) and two longer (1.41 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.38 Å) and two longer (1.40 Å) B–O bond length. In the third B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.38 Å) and two longer (1.39 Å) B–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Na1+, three Ca2+, and one B3+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Na1+, three Ca2+, and one B3+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to four Ca2+ and one B3+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Na1+, four Ca2+, and one B3+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one Na1+, four Ca2+, and one B3+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, three Ca2+, and one B3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on KCa4(BO3)3 by Materials Project

KCa4(BO3)3 crystallizes in the orthorhombic Ama2 space group. The structure is three-dimensional. K1+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.77–2.95 Å. There are three inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ca–O bond distances ranging from 2.38–2.82 Å. In the second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.38–2.56 Å. In the third Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.41–2.56 Å. There are three inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.38 Å) and two longer (1.40 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.37 Å) and two longer (1.41 Å) B–O bond length. In the third B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.38 Å) and two longer (1.39 Å) B–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, four Ca2+, and one B3+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, three Ca2+, and one B3+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to four Ca2+ and one B3+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+, three Ca2+, and one B3+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, four Ca2+, and one B3+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, three Ca2+, and one B3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Ca4LaB3O10 by Materials Project

LaCa4O(BO3)3 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.57 Å. In the second Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share a cornercorner with one CaO6 octahedra, corners with two equivalent LaO6 octahedra, and edges with two equivalent CaO6 octahedra. The corner-sharing octahedra tilt angles range from 68–75°. There are a spread of Ca–O bond distances ranging from 2.33–2.43 Å. La3+ is bonded to six O2- atoms to form distorted LaO6 octahedra that share corners with four equivalent CaO6 octahedra and edges with two equivalent LaO6 octahedra. The corner-sharing octahedral tilt angles are 68°. There are a spread of La–O bond distances ranging from 2.31–2.55 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.39 Å) and one longer (1.40 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. All B–O bond lengths are 1.39 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom. In the second O2- site, O2- is bonded to two equivalent Ca2+, one La3+, and one B3+ atom to form distorted corner-sharing OCa2LaB tetrahedra. In the third O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom. In the fourth O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent La3+ atoms to form corner-sharing OCa2La2 tetrahedra. In the fifth O2- site, O2- is bonded to three Ca2+ and one B3+ atom to form distorted corner-sharing OCa3B tetrahedra. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent La3+ and one B3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Ca4SmB3O10 by Materials Project

SmCa4O(BO3)3 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.34–2.98 Å. In the second Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share a cornercorner with one CaO6 octahedra, corners with two equivalent SmO6 octahedra, and edges with two equivalent CaO6 octahedra. The corner-sharing octahedra tilt angles range from 67–78°. There are a spread of Ca–O bond distances ranging from 2.34–2.40 Å. Sm3+ is bonded to six O2- atoms to form distorted SmO6 octahedra that share corners with four equivalent CaO6 octahedra and edges with two equivalent SmO6 octahedra. The corner-sharing octahedra tilt angles range from 67–68°. There are a spread of Sm–O bond distances ranging from 2.28–2.47 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.38–1.40 Å. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. All B–O bond lengths are 1.39 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Ca2+, two equivalent Sm3+, and one B3+ atom. In the second O2- site, O2- is bonded to three Ca2+ and one B3+ atom to form distorted corner-sharing OCa3B tetrahedra. In the third O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Sm3+ atoms to form corner-sharing OCa2Sm2 tetrahedra. In the fourth O2- site, O2- is bonded to two equivalent Ca2+, one Sm3+, and one B3+ atom to form distorted corner-sharing OCa2SmB tetrahedra. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to four Ca2+ and one B3+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Ca4ErB3O10 by Materials Project

ErCa4O(BO3)3 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share a cornercorner with one CaO6 octahedra, corners with two equivalent ErO6 octahedra, and edges with two equivalent CaO6 octahedra. The corner-sharing octahedra tilt angles range from 66–81°. There are a spread of Ca–O bond distances ranging from 2.32–2.38 Å. In the second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.34–2.98 Å. Er3+ is bonded to six O2- atoms to form distorted ErO6 octahedra that share corners with four equivalent CaO6 octahedra and edges with two equivalent ErO6 octahedra. The corner-sharing octahedra tilt angles range from 66–68°. There are a spread of Er–O bond distances ranging from 2.22–2.40 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.38 Å) and one longer (1.40 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.38 Å) and one longer (1.40 Å) B–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ca2+, one Er3+, and one B3+ atom to form distorted corner-sharing OCa2ErB tetrahedra. In the second O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Er3+ atoms to form corner-sharing OCa2Er2 tetrahedra. In the third O2- site, O2- is bonded to three Ca2+ and one B3+ atom to form distorted corner-sharing OCa3B tetrahedra. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Ca2+, two equivalent Er3+, and one B3+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to four Ca2+ and one B3+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Ca4YB3O10 by Materials Project

YCa4O(BO3)3 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share a cornercorner with one CaO6 octahedra, corners with two equivalent YO6 octahedra, and edges with two equivalent CaO6 octahedra. The corner-sharing octahedra tilt angles range from 67–79°. There are a spread of Ca–O bond distances ranging from 2.32–2.38 Å. In the second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.34–2.98 Å. Y3+ is bonded to six O2- atoms to form distorted YO6 octahedra that share corners with four equivalent CaO6 octahedra and edges with two equivalent YO6 octahedra. The corner-sharing octahedra tilt angles range from 67–68°. There are a spread of Y–O bond distances ranging from 2.24–2.43 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. All B–O bond lengths are 1.39 Å. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.38–1.40 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ca2+, one Y3+, and one B3+ atom to form distorted corner-sharing OCa2YB tetrahedra. In the second O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Y3+ atoms to form corner-sharing OCa2Y2 tetrahedra. In the third O2- site, O2- is bonded to three Ca2+ and one B3+ atom to form distorted corner-sharing OCa3B tetrahedra. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Ca2+, two equivalent Y3+, and one B3+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to four Ca2+ and one B3+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Ca4NdB3O10 by Materials Project

Ca4NdO(BO3)3 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share a cornercorner with one CaO6 octahedra, corners with two equivalent NdO6 octahedra, and edges with two equivalent CaO6 octahedra. The corner-sharing octahedra tilt angles range from 67–77°. There are a spread of Ca–O bond distances ranging from 2.34–2.42 Å. In the second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.98 Å. Nd3+ is bonded to six O2- atoms to form distorted NdO6 octahedra that share corners with four equivalent CaO6 octahedra and edges with two equivalent NdO6 octahedra. The corner-sharing octahedra tilt angles range from 67–68°. There are a spread of Nd–O bond distances ranging from 2.30–2.50 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. All B–O bond lengths are 1.39 Å. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.38–1.40 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ca2+, one Nd3+, and one B3+ atom to form distorted corner-sharing OCa2NdB tetrahedra. In the second O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Nd3+ atoms to form corner-sharing OCa2Nd2 tetrahedra. In the third O2- site, O2- is bonded to three Ca2+ and one B3+ atom to form distorted corner-sharing OCa3B tetrahedra. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Ca2+, two equivalent Nd3+, and one B3+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to four Ca2+ and one B3+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Ca5B3O9F by Materials Project

Ca5(BO3)3F crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are three inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.54 Å. In the second Ca2+ site, Ca2+ is bonded to five O2- and one F1- atom to form a mixture of corner and edge-sharing CaO5F octahedra. The corner-sharing octahedra tilt angles range from 65–75°. There are a spread of Ca–O bond distances ranging from 2.30–2.37 Å. The Ca–F bond length is 2.42 Å. In the third Ca2+ site, Ca2+ is bonded to four O2- and two equivalent F1- atoms to form CaO4F2 octahedra that share corners with four equivalent CaO5F octahedra and edges with two equivalent CaO4F2 octahedra. The corner-sharing octahedra tilt angles range from 65–66°. There are a spread of Ca–O bond distances ranging from 2.28–2.41 Å. There are one shorter (2.38 Å) and one longer (2.50 Å) Ca–F bond lengths. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. All B–O bond lengths are 1.39 Å. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. All B–O bond lengths are 1.39 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Ca2+ and one B3+ atom. In the second O2- site, O2- is bonded to three Ca2+ and one B3+ atom to form distorted OCa3B tetrahedra that share corners with two equivalent FCa4 tetrahedra and corners with five OCa3B tetrahedra. In the third O2- site, O2- is bonded to three Ca2+ and one B3+ atom to form distorted OCa3B tetrahedra that share corners with two equivalent FCa4 tetrahedra and corners with five OCa3B tetrahedra. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom. F1- is bonded to four Ca2+ atoms to form FCa4 tetrahedra that share corners with two equivalent FCa4 tetrahedra and corners with eight OCa3B tetrahedra.

36 MATERIALS SCIENCE↗