Abstract
Elastic moduli (Y, η), Poisson’s ratio (σ), microhardness (H) and some thermodynamical parameters such as Debye temperature (θD), diffusion constant (D i),latent heat of melting (ΔH m) etc of PbO-Al2O3-B2O3 glasses doped with rare earth ions viz. Pr3+, Nd3+, Sm3+, Eu3+, Tb3+, Dy3+, Ho3+, Er3+ and Yb3+, are studied as functions of temperatures (in the temperature range 30–200°C) by ultrasonic techniques. All these parameters are found to increase with increasing atomic numberZ of the rare earth ions and found to decrease with increasing temperature of measurement. From these results (together with IR spectra of these glasses), an attempt is made to throw some light on the mechanical strength of these glasses.
Similar content being viewed by others
References
Ahmed A A, Abd Elshafi N and Eltohamy M R 1998Indian J. Pure & Appl. Phys. 36 335
Chicklis V, Nasman E P, Folweiler R C, Gubbe D R, Jenson H P and Linz A 1971Appl. Phys. Lett. 19 119
Elliott S R 1990Physics of amorphous materials (Essex: Longmann Scientific & Technical)
Khalifa F A, Elhadi A A, Ael-Keshen A and Mustafa F A 1996Indian J. Pure & Appl. Phys. 34 201
Khalifa F A, Bhatal H A El and Azooz A 1998Indian J. Pure & Appl. Phys. 36 314
Kumar A R and Veeraiah N 1999J. Mater. Sci. Lett. 18 475
Lal M and Singh D P 1993Indian J. Phys. A67 445
Mallawany R El 1994Mater. Chem. Phys. 37 324
Nachimuttu P and Jagannathan R 1995Phys. Chem. Glasses 36 194
Nageswara Rao K and Veeraiah N 2000Indian J. Phys. A74 37
Rami Reddy M, Bangaru Raju S and Veeraiah N 2000Phys. Chem. Solids 61 1567
Ravikumar V and Veeraiah N 1997Bull. Mater. Sci. 20 667
Satyanarayana J V and Buddhudu S 1994Alloys & Compounds 214 97
Shelby J E 1994Key Eng. Mater. 94 43
Singh Kanwarjit, Singh D P and Bhatti S S 1992J. Pure Appl. Ultrasonics 14 56
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Reddy, M.R., Raju, S.B. & Veeraiah, N. Acoustic investigations on PbO-Al2O3-B2O3 glasses doped with certain rare earth ions. Bull Mater Sci 24, 63–68 (2001). https://doi.org/10.1007/BF02704842
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02704842