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Investigations on the binary systems of boron with chromium, columbium, nickel, and thorium, including a discussion of the Phase TiB in the titanium-boron system

Journal Article:

Abstract

Investigations on the binary systems chromium-, columbium-, nickel-, and thorium-boron are reported. The titanium-boron system is discussed, and it is shown that the phase TiB, previously assumed to have zincblende structure, probably has a face-centered titanium lattice with boron in the octahedral interstices. In the chromium-boron system, the structure of the eta phase has been determined. It has the composition Cr/sub 3/B/sub 4/ and is isomorphous with Ta/sub 3/B/sub 4/ and Mn/sub 3/B/sub 4/. Some data for the delta phase are also given. For the columbium-boron system, a phase analysis has been carried out. The structures of three of the intermediary phases, CbB, Cb/sub 3/B/sub 2/, and CbB/sub 2/ (with extended homogeneity range), have been determined. They are isomorphous with corresponding phases of the tantalum-boron system. A brief phase analysis of the nickel-boron system showed the existence of a phase with lower boron content than Ni/sub 2/B, which has not been previously reported. In the thorium-boron system a new phase, probably with a complicated structure, was found with a boron content of about 50 at. %.
Publication Date:
Jan 01, 1950
Product Type:
Journal Article
Reference Number:
EDB-79-131630
Resource Relation:
Journal Name: Acta Chem. Scand.; (Denmark); Journal Volume: 4; Other Information: In NSA; 4: 4566(1950)
Subject:
36 MATERIALS SCIENCE; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; CHROMIUM BORIDES; PHASE STUDIES; NICKEL BORIDES; NIOBIUM BORIDES; THORIUM BORIDES; ACTINIDE COMPOUNDS; BORIDES; BORON COMPOUNDS; CHROMIUM COMPOUNDS; NICKEL COMPOUNDS; NIOBIUM COMPOUNDS; THORIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 360202* - Ceramics, Cermets, & Refractories- Structure & Phase Studies; 050700 - Nuclear Fuels- Fuels Production & Properties
OSTI ID:
5949601
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: ACSAA
Submitting Site:
TIC
Size:
Pages: 160-164
Announcement Date:

Journal Article:

Citation Formats

Andersson, L H, and Kiessling, R. Investigations on the binary systems of boron with chromium, columbium, nickel, and thorium, including a discussion of the Phase TiB in the titanium-boron system. Denmark: N. p., 1950. Web.
Andersson, L H, & Kiessling, R. Investigations on the binary systems of boron with chromium, columbium, nickel, and thorium, including a discussion of the Phase TiB in the titanium-boron system. Denmark.
Andersson, L H, and Kiessling, R. 1950. "Investigations on the binary systems of boron with chromium, columbium, nickel, and thorium, including a discussion of the Phase TiB in the titanium-boron system." Denmark.
@misc{etde_5949601,
title = {Investigations on the binary systems of boron with chromium, columbium, nickel, and thorium, including a discussion of the Phase TiB in the titanium-boron system}
author = {Andersson, L H, and Kiessling, R}
abstractNote = {Investigations on the binary systems chromium-, columbium-, nickel-, and thorium-boron are reported. The titanium-boron system is discussed, and it is shown that the phase TiB, previously assumed to have zincblende structure, probably has a face-centered titanium lattice with boron in the octahedral interstices. In the chromium-boron system, the structure of the eta phase has been determined. It has the composition Cr/sub 3/B/sub 4/ and is isomorphous with Ta/sub 3/B/sub 4/ and Mn/sub 3/B/sub 4/. Some data for the delta phase are also given. For the columbium-boron system, a phase analysis has been carried out. The structures of three of the intermediary phases, CbB, Cb/sub 3/B/sub 2/, and CbB/sub 2/ (with extended homogeneity range), have been determined. They are isomorphous with corresponding phases of the tantalum-boron system. A brief phase analysis of the nickel-boron system showed the existence of a phase with lower boron content than Ni/sub 2/B, which has not been previously reported. In the thorium-boron system a new phase, probably with a complicated structure, was found with a boron content of about 50 at. %.}
journal = {Acta Chem. Scand.; (Denmark)}
volume = {4}
journal type = {AC}
place = {Denmark}
year = {1950}
month = {Jan}
}