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Volume 3 Issue 4 December 1981 pp 435-442
On the sintering kinetics of titania doped ceramic lanthanum chromite
K P Bansal S Kumari B K Das G C Jain
The sintering behaviour of lanthanum chromite with the addition of 1 to 3 wt% TiO2 was studied. Densification was examined as a function of sintering temperature and TiO2 concentration. The results showed that pure LaCrO3 could not be densified to >75% of the theoretical density, while the densities exceeding 90% of the theoretical were achieved with 3 wt% titania addition at 1600° C.
Metallographic study reveals a normal grain growth following the rate equation
D 2−D 02=kt . Activation energies both for densification and grain growth have been estimated to be ≈ (80±5) k cal/mole in case of 3 wt% TiO2 addition. -
Volume 6 Issue 2 May 1984 pp 243-258 Electrical Properties And Electrochemistry
Electrical properties of polycrystalline silicon and zinc oxide semiconductors
Polycrystalline silicon and zinc oxide ceramic are important electronic materials. The electrical properties which determine the applications of polycrystalline silicon in integrated circuits and solar cells and that of ZnO ceramic in varistors are due primarily to grain boundary effects in them. A large amount of information in this area has already been gathered in literature but the quantitative understanding of grain boundary effects in these materials is not yet complete. In this review the important aspects of grain boundaries and their effects on transport and photoelectric properties of polycrystalline silicon and on the I–V characteristic of ZnO varistors are discussed.
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Volume 6 Issue 6 December 1984 pp 1092-1092 Erratum
Electrical properties of polycrystalline silicon and zinc oxide semiconductors
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Bulletin of Materials Science
Volume 45, 2022
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Bulletin of Materials Science | News
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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Posted on July 25, 2019Click here for Editorial Note on CAP Mode
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