Ontology highlight
ABSTRACT:
SUBMITTER: Roth RS
PROVIDER: S-EPMC5287139 | biostudies-literature | 1961 Jul-Aug
REPOSITORIES: biostudies-literature
Journal of research of the National Bureau of Standards. Section A, Physics and chemistry 19610701 4
A large portion of the phase equilibrium diagram for the binary system barium oxide-niobium pentoxide has been constructed from observations of fusion characteristics and X-ray diffraction data. In the system five binary compounds were observed with BaO: Nb<sub>2</sub>O<sub>5</sub> ratios of 5:2, 1:1, 6:7, 3:5, and 1:3 and a 6:1 compound was postulated. The 1:1 compound was found to melt congruently at 1,455 °C and have only one stable polymorph, although a second metastable polymorph can also b ...[more]