Oxobarium

Oxobarium Structure
Oxobarium structure
Common Name Oxobarium
CAS Number 1304-28-5 Molecular Weight 153.326
Density 5.72 g/mL at 25ºC(lit.) Boiling Point 2000ºC
Molecular Formula BaO Melting Point 1920ºC
MSDS Chinese USA Flash Point N/A
Symbol GHS05 GHS06
GHS05, GHS06
Signal Word Danger

Thermal, structural, optical, and dielectric properties of (100 - x)Li2B4O7 - x(BaO-Bi2O3-Nb2O5) glasses and glass-nanocrystal composites.

J. Nanosci. Nanotechnol. 7(3) , 1006-13, (2007)

Transparent glasses in the system (100 - x)Li2B4O7 - x(BaO-Bi2O3-Nb2O5) (x = 10, 20, and 30) were fabricated via the conventional melt-quenching technique. The amorphous and glassy characteristics of the as-quenched samples were established by the differentia...

Effects of monomer ratios and highly radiopaque fillers on degree of conversion and shrinkage-strain of dental resin composites

Dent. Mater. 25(11) , 1411-8, (2009)

Objectives The degree of conversion (DC) and polymerization shrinkage of resin composites are closely related manifestations of the same process. Ideal dental composite would show an optimal degree of conversion and minimal polymerization shrinkage. These see...

Enhancement of ferroelectric polarization stability by interface engineering.

Adv. Mater. 24(9) , 1209-16, (2012)

By using theoretical predictions based on first-principle calculations, we explore an interface engineering approach to stabilize polarization states in ferroelectric heterostructures with a thickness of just several nanometers.Copyright © 2012 WILEY-VCH Verl...

Oxygen-17 hyperfine structures in the pure rotational spectra of SrO, SnO, BaO, HfO and ThO.

Phys. Chem. Chem. Phys. 9(44) , 5897-901, (2007)

Hyperfine structures arising from the couplings of the nuclear spin angular momentum of (17)O (I = 5/2) with the end over end rotation of several metal-containing diatomic monoxides have been observed using a Fourier transform microwave spectrometer. The mole...

The near-infrared broadband emission from bismuth-doped GeO2-WO3 and GeO2-BaO glasses.

Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 70(1) , 122-5, (2008)

Glasses with the composition of (99.5-chi)GeO2-chiWO(3)-0.5Bi2O3 (chi=3, 6, 9 mol%) and (99.5-psi)GeO2-psiBaO-0.5Bi2O3 (psi=3, 6, 9 mol%) were prepared. Their thermal, emission and absorption measurements were carried out. The near-infrared super broadband em...

Ab initio calculation of vibrational frequencies and Raman spectra of barium peroxide glass including comparison of tetrahedral BaO4 with GeO4 and SiO4.

Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 79(5) , 1251-5, (2011)

We have calculated the vibrational frequencies of clusters of atoms from the first principles by using the density-functional theory in the local density approximation (LDA). We are also able to calculate the electronic binding energy for all of the clusters ...

Upconversion in Er3+-doped Bi2O3-Li2O-BaO-PbO tertiary glass.

Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 66(4-5) , 1307-11, (2007)

Radiative properties of Er3+-doped tertiary bismuth glass has been analyzed by the Judd-Ofelt theory. NIR to visible upconversion in the Er3+-doped glass has been reported. The mechanism for the upconversion is explained on the basis of quadratic dependence o...

Large hiatal hernia with floppy fundus: clinical and radiographic findings.

AJR Am. J. Roentgenol. 188(4) , 960-4, (2007)

The purpose of this study was to compare the clinical and barium radiographic findings for 17 patients with large hiatal hernias and a floppy fundus with those for 61 patients with large hiatal hernias but no floppy fundus.Patients with large hiatal hernias c...

Relaxation modulus of denture base resin reinforced with woven glass fibers.

Dent. Mater. J. 21(1) , 1-8, (2002)

This study examined the reinforcing effect of woven glass fibers on the relaxation modulus by three-point loading of denture base resin. Three sandwich-type flexure test specimens polymerized by heating were used, all 3 mm thick: glass fibers in compression (...

[Luminescence properties and spectral analysis of long phosphorescent phosphors: Ba(1 - x) Ca (x) Al2O4 : Eu2+, RE3+].

Guang Pu Xue Yu Guang Pu Fen Xi 25(5) , 665-8, (2005)

New long phosphorescent phosphors Ba(1 -x),Ca(x)Al2O4 : Eu2+, RE3+ (RE3+ = Dy3+, Nd3+) with tunable color emission have been prepared by solid state reaction. The luminescence properties of the samples are discussed and analyzed. The emission spectra show tha...