Bull. Mater. Sci., Vol. 2, Number 1, January 1980, pp. 55-60.
(~) Printed in India.
X-ray study of the air-oxidised a-Ga~_Se8 and Ga._Tea powders A K MUK.HERJEE, U DHAWAN, K D KUNDRA and S Z ALI
National Physical Laboratory, Hillside Road, New Delhi 1 10 012 MS received 5 November 1979
Abstract. X-ray studies of the stoichiometrically prepared a-Ga2Se3 and Ga~Te3
are reported after various stages of air-oxidation in the temperature ranges 250 to 825°C and 250 to 650°C respectively. Diffractometric powder data of Ga~Te8 are also reported over the complete 20 range with remarkable difference
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