Improvement In Elastic Properties Of CuAl0.4Fe1.6O4 Spinel Ferrite By Rapid Thermal Cooling

被引：10
作者：
Modi, K. B. [1 ]
Shah, S. J. [1 ]
Pathak, T. K. [1 ]
Vasoya, N. H. [1 ]
Lakhani, V. K. [1 ]
Yahya, A. K. [2 ]
机构：
[1] Saurashtra Univ, Dept Phys, Rajkot 360005, Gujarat, India
[2] Univ Teknol MARA, Sch Phys & Mat Studies, Shah Alam 40450, Malaysia
来源：
SOLID STATE PHYSICS: PROCEEDINGS OF THE 58TH DAE SOLID STATE PHYSICS SYMPOSIUM 2013, PTS A & B | 2014年 / 1591卷
关键词：
Ferrites; Ultrasonic pulse echo - overlap technique; Elastic Moduli;
D O I：
10.1063/1.4872872
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The elastic properties of spinel ferrite composition, CuAl0.4Fe1.6O4, quenched from final sintering temperature of 1373 K to liquid nitrogen temperature (similar to 80K) have been studied by means of X-ray powder diffractometry and pulse echo-overlap technique (9 MHz) at 300 K. The magnitude of elastic constants is found to enhance by 15% compared to slowly-cooled counterpart. The observed mechanical strengthening has been discussed in the light of compressive stress on the surface, with tensile stresses at interior regions and corresponding changes in structural parameters. The B-o/G(o) ratio indicates the brittle nature of CuAl0.4Fe1.6O4.
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页码：1115 / 1117
页数：3
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