Results 21 to 30 of about 106,330 (282)

Radiation Shielding Properties Comparison of Pb-Based Silicate, Borate, and Phosphate Glass Matrices

open access: yesScience and Technology of Nuclear Installations, 2014
Theoretical calculations of mass attenuation coefficients, partial interactions, atomic cross-section, and effective atomic numbers of PbO-based silicate, borate, and phosphate glass systems have been investigated at 662 keV. PbO-based silicate glass has
Suwimon Ruengsri
doaj   +1 more source

SYNTHESIS, STRUCTURE AND SPECTRAL PROPERTIES OF POTASSIUMALUMINA- BORATE GLASS WITH NANOCRYSTALS OF MANGANESE FERRITE [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2016
Subject of Research.The paper presents research results of optical properties of potassium-alumina-borate glass, activated with ions of iron and manganese.
D. I. Sobolev   +5 more
doaj   +1 more source

Design and Properties of Novel Substituted Borosilicate Bioactive Glasses and Their Glass-Ceramic Derivatives [PDF]

open access: yes, 2016
Three novel borosilicate bioactive glasses (BBGs) of general formula of 0.05Na2O·0.35x·0.20B2O3·0.40SiO2 (molar ratio, where x = MgO or CaO or SrO) were prepared and used to investigate the effect of crystallization on their properties including ...
Aileen Crawford   +9 more
core   +1 more source

Statistical approach to study of lithium magnesium metaborate glasses

open access: yesOpen Chemistry, 2017
Alkali borate glasses and alkaline earth borate glasses are commonly used materials in the field of optoelectronics. Infrared (FTIR) and Raman spectroscopy are valuable tools for structural investigation of borate glass networks.
Nedyalkova Miroslava   +2 more
doaj   +1 more source

Boron enrichment in Martian clay [PDF]

open access: yes, 2013
We have detected a concentration of boron in martian clay far in excess of that in any previously reported extra-terrestrial object. This enrichment indicates that the chemistry necessary for the formation of ribose, a key component of RNA, could have ...
Freeland, Stephen J.   +4 more
core   +3 more sources

Cobalt-containing borate bioactive glass fibers for treatment of diabetic wound

open access: yesJournal of Materials Science: Materials in Medicine, 2023
Impaired angiogenesis is one of the predominant reasons for non-healing diabetic wounds. Cobalt is well known for its capacity to induce angiogenesis by stabilizing hypoxia-inducible factor-1α (HIF-1α) and subsequently inducing the production of vascular
Minhui Zhang   +5 more
doaj   +1 more source

Thermoluminescence (TL) dosimeter of dysprosium doped strontium borate glass for different glass modifiers (Na, Li, Ca) subjected from 1 to 9 Gy doses

open access: yesEPJ Web of Conferences, 2017
This article reports TL response for different glass modifier and doping concentration. Alkali oxides (Na2O and Li2O) and alkali earth oxide (CaO) will be used as a glass modifier for strontium borate based glass.
Hamzah S. A.   +3 more
doaj   +1 more source

Impedance spectroscopy study of the AC conductivity of sodium superoxide nanoparticles doped vanadate based glasses

open access: yesMaterials Science for Energy Technologies, 2021
In the present work, we successfully prepared sodium superoxide (NaO2) doped vanadium phosphate borate glasses using normal melt quenching technique of composition 60V2O5–5P2O5–(35-x) B2O3–xNaO2, x  = 0, 10, 15 and 20 mol %.
R.V. Barde, K.R. Nemade, S.A. Waghuley
doaj   +1 more source

Titanium addition influences antibacterial activity of bioactive glass coatings on metallic implants

open access: yesHeliyon, 2017
In an attempt to combat the possibility of bacterial infection and insufficient bone growth around metallic, surgical implants, bioactive glasses may be employed as coatings.
Omar Rodriguez   +6 more
doaj   +1 more source

First principles study of a sodium borosilicate glass-former II: The glass state [PDF]

open access: yes, 2014
We use ab initio simulations to investigate the properties of a sodium borosilicate glass of composition 3Na_2O-B_2O_3-6SiO_2. We find that the broadening of the first peak in the radial distribution functions g_BO(r) and g_BNa(r) is due to the presence ...
Ispas, Simona   +2 more
core   +3 more sources

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