Articles written in Bulletin of Materials Science
Volume 8 Issue 5 December 1986 pp 577-580
Addition of three eutectics, Li2SO4:Li2CO3, 3Li2O·Nb2O5:LiNbO3 and AgI:Ag2SO4 has been tried in the Li2O:B2O3 glass system. The electrical conductivity increases with the addition of eutectic. The amount of lithium fraction and the melting point of the eutectic govern the conductivity.
Volume 9 Issue 4 November 1987 pp 263-267
Aliovalent sulphates were selected for substitution in β-Li2SO4 at 6% vacancy concentration. The results show that if the guest ions are substituted on the basis of the criteria given for the formation of a solid solution, then it is possible to achieve a considerable enhancement in conductivity especially in the case of isostructural materials.
Volume 9 Issue 5 December 1987 pp 355-363
Different compositions in the Li2SO4-LiNbO3 system have been prepared by adopting the twin roller quenching technique. The electrical conductivity has been measured and the sample with 20 mole% LiNbO3 exhibited maximum conductivity at 573 K. The results have been explained on the basis of XRD, SEM data and vacancy concentration. A number of solid state electrochemical cells were fabricated by varying the electrolyte composition, using Li-metal and MnO2 as anode and cathode respectively. The 80 Li2SO4:20 LiNbO3 composition gave the best cell performance.
Volume 11 Issue 1 September 1988 pp 55-61
Dielectric constant variation with temperature and frequency is reported for barium-borate glass-bonded lead zirconate. Lowering of the relative permittivity of the ceramic is attributed to the presence of the glass.
Volume 12 Issue 2 July 1989 pp 117-121
Glasses in the Li2O:B2O3:Ag2SO4 system were prepared with varying silver sulphate contents. From the present results it can be said that the amorphous matrix accepts Ag2SO4 up to 5 mol% without any devitrification. The enhancement in conductivity with change in the structure of metaborate glass is due to Ag2SO4.
Volume 15 Issue 5 August 1992 pp 467-471
Lithium borosulphate glasses have been prepared in three different series: (a) (42·5 −
Volume 18 Issue 2 April 1995 pp 147-154
Electrical conductivity of the Ag2SO4-K2SO4 binary system shows three maxima at 20, 70 and 90 mole% of K2SO4 added to Ag2SO4. The first and the third maxima have been explained in the light of intragrain percolation due to lattice distortion, whereas, the second maximum by the surface percolation. The limit of solid solubility has been set at 20 mole% on the basis of evidences obtained from XRD, DTA and SEM techniques.
Volume 18 Issue 3 June 1995 pp 237-246
The compositions (1 −
Volume 22 Issue 2 April 1999 pp 71-83 Review Article
The performance of any solid state electrochemical gas sensor is always rated on its response time, thermodynamic stability, operating temperature, gas sensing ability, sensitivity and gas concentration range which is sensed. Here, we have reviewed the factors contributing towards a gradual development of electrochemical solid state SO
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