Research output: Contribution to journal › Article › peer-review
Electrical conductivity and structure of glasses in the Na 2O-Na2S-P2O5 and Na 2S-P2S5 systems. / Startsev, Yu K.; Pronkin, A. A.; Sokolov, I. A.; Murin, I. V.
In: Glass Physics and Chemistry, Vol. 37, No. 3, 06.2011, p. 263-282.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Electrical conductivity and structure of glasses in the Na 2O-Na2S-P2O5 and Na 2S-P2S5 systems
AU - Startsev, Yu K.
AU - Pronkin, A. A.
AU - Sokolov, I. A.
AU - Murin, I. V.
PY - 2011/6
Y1 - 2011/6
N2 - The glasses, in which oxygen was partially replaced with sulfur, have been synthesized in the Na2O-P2O5-Na2S system. The chemical and chromatographic analyses of the glasses synthesized have been performed. The temperature-concentration dependences of electrical conductivity of the glasses have been studied over a wide temperature range; the glass transition temperatures and the nature of charge carriers have been determined. The IR spectra and Raman spectra have been recorded at room temperature; the density and microhardness of the glasses and ultrasound velocity have been measured. A comparison of the electrical conductivities of the investigated glasses with those of the earlier studied glasses in the Na2O-P2O5 system has shown their fair coincidence. The introduction of sodium sulfide into the Na2O-P 2O5 system is accompanied by an approximately threefold increase in electrical conductivity, although the concentrations of charge carriers (sodium ions) in the glasses amount to ∼17 and ∼26 mmol/cm 3, respectively. The rise in electrical conductivity has been assumed to be caused by the increase in the degree of dissociation of polar structural chemical units including sulfide ions and by the higher mobility of sodium ions in the oxygen-free matrix.
AB - The glasses, in which oxygen was partially replaced with sulfur, have been synthesized in the Na2O-P2O5-Na2S system. The chemical and chromatographic analyses of the glasses synthesized have been performed. The temperature-concentration dependences of electrical conductivity of the glasses have been studied over a wide temperature range; the glass transition temperatures and the nature of charge carriers have been determined. The IR spectra and Raman spectra have been recorded at room temperature; the density and microhardness of the glasses and ultrasound velocity have been measured. A comparison of the electrical conductivities of the investigated glasses with those of the earlier studied glasses in the Na2O-P2O5 system has shown their fair coincidence. The introduction of sodium sulfide into the Na2O-P 2O5 system is accompanied by an approximately threefold increase in electrical conductivity, although the concentrations of charge carriers (sodium ions) in the glasses amount to ∼17 and ∼26 mmol/cm 3, respectively. The rise in electrical conductivity has been assumed to be caused by the increase in the degree of dissociation of polar structural chemical units including sulfide ions and by the higher mobility of sodium ions in the oxygen-free matrix.
KW - Electrical conductivity
KW - Glass formation in the NaO- NaS-PO and NaS-P S systems
KW - Nature of charge carriers
KW - Phosphate and sulfide glasses
KW - Structural chemical units
KW - Transfer numbers
UR - http://www.scopus.com/inward/record.url?scp=80052648308&partnerID=8YFLogxK
U2 - 10.1134/S1087659611030138
DO - 10.1134/S1087659611030138
M3 - Article
VL - 37
SP - 263
EP - 282
JO - Glass Physics and Chemistry
JF - Glass Physics and Chemistry
SN - 1087-6596
IS - 3
ER -
ID: 5212949