Study of Fractal Bond Connectivity of Neodymium Phosphate Glasses by Ultrasonic Technique
DOI:
https://doi.org/10.11113/jt.v37.529Abstract
Sifat-sifat kenyal untuk kaca neodimium fosfat xNd2O3(1-x)P2O5 dengan komposisi yang berbeza dari 10 hingga 25% mol Nd2O3 telah dikaji melalui kaedah ultrasonik, sebagai fungsi suhu dari 270 K hingga 303 K. Sifat-sifat kenyal yang dikaji antaranya ialah pemalar kekenyalan adiabatik C11, C44 dan modulus pukal, B yang telah diperolehi dari data pengukuran eksperimen. Dalam kajian ini menunjukkan bahawa sifat-sifat kenyal bersandar kepada suhu dan seterusnya memberi maklumat tentang hubungan ikatan fraktal bagi kaca neodimium fosfat yang terletak di antara 2.00 hingga 2.70. Keputusan dari kajian ini menunjukkan bahawa kaca neodimium fosfat mempunyai struktur yang tersusun dalam rangkaian di antara dua dan tiga dimensi. Kata kunci: sifat kenyal; kaca neodimium fosfat; kajian ultrasonik The elastic properties of neodymium phosphate xNd2O3(1-x)P2O5 glasses with different compositions containing from 10 to 25 mole % Nd2O3 has been studied by ultrasonic technique, as functions of temperature from 270 K to 303 K. The elastic properties like adiabatic elastic stiffness coefficients, C11, C44 and bulk modulus, B of the glasses have been determined using the experimental data. The temperature dependence of the elastic properties were used to explores useful information about the fractal bond connectivity of the neodymium phosphate glasses which lies between 2.00 and 2.70. This result indicates that the neodymium phosphate glasses were connected in an array between two and three dimensional network. Key words: elastic properties; neodymium phosphate glasses; ultrasonic studiesDownloads
Published
2012-01-20
Issue
Section
Science and Engineering
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.
How to Cite
Study of Fractal Bond Connectivity of Neodymium Phosphate Glasses by Ultrasonic Technique. (2012). Jurnal Teknologi (Sciences & Engineering), 37(1), 11–20. https://doi.org/10.11113/jt.v37.529