Results 241 to 250 of about 106,330 (282)

Sol–Gel Borate Glasses

2022
This chapter examines the history, chemistry, and applications of sol–gel-derived borate glasses. Despite a significant lack of literature compared to silicate sol–gel glasses, sol–gel borate glasses offer interesting properties for a wide range of applications.
William C. Lepry, Showan N. Nazhat
openaire   +1 more source

Effect of borate glass network to electrochemical properties: Manganese-doped lithium borate glasses

Radiation Physics and Chemistry, 2020
Abstract Recent development of manganese-lithium borate glasses for applications as supercapacitor was reported. The glasses were prepared by melt-quench technique and characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), and Uv–visible spectroscopy (UV-VIS).
Amorntep Montreeuppathum, Pinit Kidkhunthod, Saroj Rujirawat, Rattikorn Yimnirun, Supree Pinitsoontorn, Santi Maensiri   +5 more
openaire   +1 more source

Ultrasonic relaxations in borate glasses

Materials Science and Engineering: A, 2004
The attenuation and velocity of ultrasonic waves of frequencies in the range from 10 to 70MHz have been measured in M2O–B2O3 borate glasses (M: Li or Ag) as a function of temperature between 15 and 350 K. The velocity of sound waves decreases with increasing temperature in all the glasses, the decrease as the temperature is increased is larger in ...
D'ANGELO, Giovanna, TRIPODO, Gaspare, CARINI, Giuseppe, E. COSIO, A. BARTOLOTTA, G. DI MARCO   +5 more
openaire   +6 more sources

New Sodium Borate Glasses

Journal of the American Ceramic Society, 1984
The glass‐forming regions for the sodium borate system were determined using a roller‐quencher. The new regions are R=0 to 0.8 and R=1.2 to 4.9for samples prepared from sodium carbonate (where R=mol% Na 2 O/mol% B 2 O 3
JamesE. Kasper, StevenA. Feller, GustavoL. Sumcad, D.C. Boyd   +3 more
openaire   +1 more source

Thermoluminescence of Borate Glass Containing Copper

Radiation Protection Dosimetry, 1983
Abstract Thermoluminescence (TL) of X ray irradiated borate glass containing copper (0.01 to 1.0 mol%) has been studied. Samples were made from mixtures of B2O3 and CuCl2. They were melted at 1100 oC for 1 hour in a platinum crucible followed by annealing in a brass mould.
Y. Fukuda, T. Okuno, N. Takeuchi
openaire   +1 more source

Structure of Borate Glasses

Journal of the American Ceramic Society, 1957
Anomalous thermal expansion and other properties of borate glasses have previously been given a structural explanation by Abe. This explanation is here reinterpreted and revised in terms of the structon theory of Huggins. In agreement with Warren, it is postulated that, in glasses containing, in addition to boric oxide, small relative amounts of an ...
MAURICE L. HUGGINS, TOSlO ABE
openaire   +1 more source

Molecular dynamics of a silver borate glass

Journal of Non-Crystalline Solids, 1986
Etude par calcul de dynamique moleculaire des verres Ag 2 O-, 9B 2 O 3 afin de confirmer les hypotheses anterieures et d'indiquer la localisation des ions argent dans les interstices du reseau, pres des atomes d'oxygene.
ABRAMO, Maria Concetta, CARINI, Giuseppe, PIZZIMENTI, Giovanni   +2 more
openaire   +3 more sources

6Li NMR in lithium borate glasses

Solid State Nuclear Magnetic Resonance, 2008
In anticipation of using fluctuations in the nuclear dipolar and quadrupolar interaction as a probe of lithium ion motion in lithium borate glasses, the static values of these interactions were measured using a variety of echo techniques. The static quadrupolar echo spectrum of (7)Li and a calculation of the dipolar interaction in crystalline Li(2)B(4 ...
Timothy, Hasiuk, Kenneth R, Jeffrey
openaire   +2 more sources

EXAFS on Silver Borate Glasses

1984
Fast ion transport properties in crystalline and amorphous solids have been widely studied in the last years. In particular, new glasses have been produced, exhibiting a conductivity due to alkali or silver ions much higher than the corresponding crystalline compounds.
Fornasini, Paolo, Dalba, Giuseppe, F. Rocca, E. Bernieri, E. Burattini   +4 more
openaire   +2 more sources

Microseparation in Lead Borate Glasses

Journal of the American Ceramic Society, 1966
The microstructure of a series of lead borate glasses was studied by electron microscopy and small‐angle X‐ray scattering techniques. Although the glasses were optically homogeneous, microheterogeneities of the order of 2000 to 3000 A were detected in glasses with compositions near the region of two‐liquid stability.
D. J. LIEDBERG, R. J. SMID, C. G. BERGERON   +2 more
openaire   +1 more source