Articles written in Bulletin of Materials Science
Volume 1 Issue 2 October 1979 pp 113-119 Research Communications
Electrical resistivity of La1−
Volume 2 Issue 3 August 1980 pp 193-199
Systematics in the electrical and magnetic properties of transition metal perovskites LnBO3 (Ln=rare-earth ion, B=3
Volume 3 Issue 3 November 1981 pp 255-260
The low-temperature preparation of some La2MM′O6 compounds (M,M′=Cr, Mn, Fe, Co, Ni, M≠M′) by the decomposition of coprecipitated basic carbonates is described. Single phase compounds are formed. The stability of physical properties of these phases towards further heating depends on the M and M′ ions. The results are interpreted in terms of the stability of the M-M′ oxidation states.
Volume 4 Issue 3 May 1982 pp 207-228
A review of experiments on crystal growth from melt in nearly zero gravity environments in space is given. The review includes experiments from skylab and ASTP missions. The results discussed are morphological observations, melt interfaee observations, dopant segregation, alloy solidification and containerless experiments.
Volume 5 Issue 3-4 August 1983 pp 307-315
The low-temperature magnetic susceptibility behaviour of LaCoO3 prepared under different conditions as well as substituted samples such as LaCo0.95M0.05O3 (M=Al, Ga, Cr, Fe, Mn, Ni) and La0.98Sr0.02CoO3 have been investigated in the temperature range 12–300 K. Earlier interpretations of the magnetic susceptibility have been reexamined. In the case of LaCoO3 samples containing Al, Ga, Cr and Fe impurities spin-state transitions involving a temperature independent activation energy (∼0.01 eV) are observed at
Volume 9 Issue 2 June 1987 pp 81-87
An all-glass open photoacoustic cell through which gases can be passed without affecting the signal has been described. The cell has been characterized for various chopping frequencies and temperatures. Several heterogeneous catalytic reactions have been studied under conditions of gas flow at elevated temperatures and the potential application of this method in the field of heterogeneous catalysis has been pointed out.
Volume 42 | Issue 6
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