Preliminary Characterisation of Some13; Cd-Ge-As Glasses

Giridhar, A and Mahadevan, Sudha (1989) Preliminary Characterisation of Some13; Cd-Ge-As Glasses. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Glasses of the Cd-Ge-As system are of importance because of their switching properties. Several glasses of this system were synthesised and characterised with respect to several properties.In this document the results of the measurement of glass transition temperature (T), crystallisation temperature g(T) and density are surnrnarisedfor eleven glass compositions c13; of the Cd-Ge-As system.Two distinct regions are seen in the composition dependence of T and T for the CdAs2-Ge glasses. The change over from g c one linear portion to the other takes place at the composition Cd28.57Ge14.28AS57.14' which has equal mole fractions of CdAS2and CdGeAs2' In the composition dependence of T , T and density g c of Cd2Ge-As glasses also, special features are seen at this composition. An attempt has been made to analyse these results based on the formation in the glasses of CdAs2 and CdGeAS2 networks with excess Cd and As.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Cd-Ge-As glasses;Characterisation
    Subjects: CHEMISTRY AND MATERIALS > Metals and Metallic Materials
    Division/Department: Materials Science Division, Materials Science Division
    Depositing User: Poornima Narayana
    Date Deposited: 07 Jul 2006
    Last Modified: 24 May 2010 09:45

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