Abstract
The X-ray Debye temperatures, θ M , of spinel ferrite composition Ni0.5Zn0.5Fe2O4, mechanically milled upto 9 hrs, were determined from integrated intensities of selected Bragg reflections. The θ M was found to increase with milling time. The results are explained in the light of milling induced grain orientation and surface effect. The values of θ M were found to be lower as compared to the Debye temperatures obtained from infrared spectral data analysis. The difference can be explained on the basis of increase in an excess free volume in the form of vacancies and vacancy clusters associated with grain boundaries.
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L S Salter Adv. Phys. 14(53) 1 (1965)
S S Bhatu, V K Lakhani, A R Tanna, N H Vasoya, J U Buch, P U Sharma,U N Trivedi, H H Joshi and K B Modi Indian J. Pure Appl. Phys. 45 596 (2007)
K B Modi J. Mat. Sci. 39 2887 (2004)
H M Reitveld J. Appl. Cryst. 2 65 (1969)
N H Vasoya, L H Vanpariya, P N Sakariya, M D Timbadiya, T K Pathak, V K Lakhani and K B Modi Ceram. Int. 36 947 (2010)
B H Toby Powder Diff. 21 67 (2006)
M J Buerger Crystal Structure Analysis (New York: Wiley) 231 (1960)
L K Walford and J A Schooffel Philos. Mag. 21 375 (1970)
R W James The Optical Principles of the Diffraction of X-Rays (London: Bell) 216 (1967)
D R Chipman and A Paskin J. Appl. Phys. 30 1998 (1959)
K B Modi Infrared spectroscopic study on mechanically milled Ni 0.5 Zn 0.5 Fe 2 O 4 spinel ferrite (un- published work)
R G Kulkarni and G K Bichile J. Appl. Phys. 48 1844 (1977)
R G Kulkarni and G K Bichile J. Mater. Sci. 15 2927 (1980)
K Lu, R Luck and B Predel Mat. Sci. Eng. A179 536 (1994)
P P Chattopadhyay, P M G Nambissan, S K Pabi and I Manna Phys. Rev. B63 054107 (2001)
B D Culity Elements of X-Ray Diffraction (Reading, New York: Addison-Wesley Pub. Co.) (1978)
J A Eastman, M R Fitzsimmons and L J Thompson Philos. Mag. B66 667 (1992)
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Modi, K.B., Pathak, T.K., Vasoya, N.H. et al. X-ray Debye temperature of mechanically milled Ni0.5Zn0.5Fe2O4 spinel ferrite. Indian J Phys 85, 411–420 (2011). https://doi.org/10.1007/s12648-011-0051-5
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DOI: https://doi.org/10.1007/s12648-011-0051-5