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Acoustic properties of borate glasses
Journal of Non-Crystalline Solids, 2004The attenuation and velocity of ultrasonic waves of frequencies in the range from 10MHz to 50MHz have been measured in (M2O)0.14(B2O3)0.86 borate glasses (M = Li, Cs or Ag) as a function of temperature between 15K and 300K. Broad relaxation peaks characterize the acoustic attenuation at temperatures below 100K and are paralleled by corresponding ...
Giovanni Carini +4 more
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Phosphate and Borate Bioactive Glasses
2022Inorganic glasses are successfully used in the biomedical field, in particular degradable glasses have found applications in tissue engineering, bone regeneration and tooth remineralisation. Silicate glasses are the most commonly used ones but phosphate and borate glasses are attracting more and more interest owing to their special properties ...
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Luminescence Of Lanthanum Borate Glasses
SPIE Proceedings, 1989The luminescence of several rare-earth ions a s2 ion and a transition metal ion in lanthanum borate glass are investigated and compared with the luminescence of these ions in crystals of composition LaB3O6,with a special stress on the transitions of the broad-band type.
J. W. M. Verwey, G. Blasse
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1978
Early in 1975, Norbert Kreidl approached me for my opinion on the topic and novel format which he was considering for the Fifth “Rolla” Ceramic Materials Conference.* The theme was to be borate glass structures, and part of the motivation was to produce a volume of original papers on the subject which could be dedicated as a “festschrift” in memory of ...
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Early in 1975, Norbert Kreidl approached me for my opinion on the topic and novel format which he was considering for the Fifth “Rolla” Ceramic Materials Conference.* The theme was to be borate glass structures, and part of the motivation was to produce a volume of original papers on the subject which could be dedicated as a “festschrift” in memory of ...
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Kinetic study of crystallization of borates and borate glasses
Journal of Alloys and Compounds, 1996Abstract The kinetics of the multistage crystallization of amorphous borates and alkali- and alkaline-earth-borate glasses obtained by melting oxide mixtures has been studied. The amorphized borates: colemanite Ca 2 B 6 O 8 (OH) 6 ·2H 2 O, pandermite Ca 2 B 5 O 8 (OH) 3 ·2H 2 O, kaliborite HKMg 2 B 12 O 16 (OH) 10 ·4H 2 O, kernite Na 2 B 4 O 6 (OH ...
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1978
One of the first factory produced boro-silicate glasses was made by Maes in Clichy, France around 1850. It was a glass one would call today a “boro-silicate crown” and its composition, according to an analysis reported by E. Zschimmer [1], was 56% silica, 7% boric acid, 17% potassia, 2% calcia, 14% zinc oxide, 4% lead oxide. Articles made of this glass
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One of the first factory produced boro-silicate glasses was made by Maes in Clichy, France around 1850. It was a glass one would call today a “boro-silicate crown” and its composition, according to an analysis reported by E. Zschimmer [1], was 56% silica, 7% boric acid, 17% potassia, 2% calcia, 14% zinc oxide, 4% lead oxide. Articles made of this glass
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Glass Formation in Borate Systems
1978Glass formation achieved by quenching a melt is a fundamental material property associated with a number of independent variables: composition, melt volume, type of quench, quench temperature and melt history1. Collectively, these variables combine to yield a quench rate which may or may not be sufficient for a given melt to suppress crystallization ...
L. D. Pye, V. D. Fréchette, D. E. Rase
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Borate based lithium conducting glasses
Materials Chemistry and Physics, 1989Borate based lithium conducting glasses are reviewed. The glass former is B2O3 to which Li2O is usually added as a modifier. Various lithium salts can be present in order to enhance the conductivity such as lithium halides, sulfate or orthophosphate. Their preparation procedures are described.
A. Levasseur, M. Menetrier
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Chemical Durability of Borate Glasses
1978The Na2O-B2O3 binary system has been studied extensively. The work of Krogh-Moe and others, summarized by Griscom,l has attempted to explain the structural reasons for various property changes that occur as the ratio of Na2O to B2O3 is varied. Many inflections in the curves relating properties and composition seem to occur at about 15–20% Na2O, the so ...
P. B. Adams, D. L. Evans
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The Rheology of Alkali Borate Glasses
1974A survey is given of the recent work in the Department of Inorganic Chemistry of the Eindhoven University of Technology on the rheological properties of alkali borate glasses.
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