Synthesis, characterization and electrical conductivity studies on A{sub 3}Bi{sub 2}P{sub 3}O{sub 12} (A = Na, K) materials

Journal Article · Wed Apr 20 00:00:00 EDT 2005 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2005.01.008· OSTI ID:20889756

Mariappan, C R ^[1]; Govindaraj, G ^[1]; Ramya, L ^[1]; Hariharan, S ^[1]

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1. Department of Physics, School of Physical, Chemical and Applied Sciences, Pondicherry University, R.V. Nagar, Kalapat, Pondicherry 605 014 (India)

Crystalline Na{sub 3}Bi{sub 2}P{sub 3}O{sub 12}, K{sub 3}Bi{sub 2}P{sub 3}O{sub 12} and glassy K{sub 3}Bi{sub 2}P{sub 3}O{sub 12} compounds were prepared by solid-state reaction method. The prepared samples are characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy and differential scanning calorimetry. The crystalline materials are found to be orthorhombic. The electrical conductivity measurements on the crystalline and glassy samples show that at {approx}373 K, the {sigma} {sub DC} for crystalline K{sub 3}Bi{sub 2}P{sub 3}O{sub 12} (0.81 x 10{sup -8} S/cm) is about two orders of magnitude higher than the corresponding glassy phase (1.25 x 10{sup -10} S/cm). The scaling results show that the conductivity relaxation mechanism is independent of temperature.

• OSTI ID: 20889756
• Journal Information: Materials Research Bulletin, Vol. 40, Issue 4; Other Information: DOI: 10.1016/j.materresbull.2005.01.008; PII: S0025-5408(05)00023-1; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BUILDING MATERIALS
CALORIMETRY
CHEMICAL PREPARATION
ELECTRIC CONDUCTIVITY
FOURIER TRANSFORM SPECTROMETERS
GLASS
IMPEDANCE
ORTHORHOMBIC LATTICES
RELAXATION
SCALING
X-RAY DIFFRACTION