Materials Science and Engineering, Ames Laboratory, Center for Nondestructive Evaluation
Journal or Book Title
Journal of Applied Physics
Metal bonded cobaltferrite composites have been shown to be promising candidate materials for use in magnetoelastic stress sensors, due to their large magnetostriction and high sensitivity of magnetization to stress. However previous results have shown that below 60°C" role="presentation" style="box-sizing: border-box; display: inline; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; color: rgb(51, 51, 51); font-family: Arial, sans-serif; position: relative;">60°C60°C the cobaltferritematerial exhibits substantial magnetomechanical hysteresis. In the current study, measurements indicate that substituting Mn for some of the Fe in the cobaltferrite can lower the Curie temperature of the material while maintaining a suitable magnetostriction for stress sensing applications. These results demonstrate the possibility of optimizing the magnetomechanical hysteresis of cobalt ferrite-based composites for stress sensor applications, through control of the Curie temperature.
Copyright 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
American Institute of Physics
Paulsen, J. A.; Ring, A. P.; Lo, C. C.H.; Snyder, J. E.; and Jiles, David C., "Manganese-substituted cobalt ferrite magnetostrictive materials for magnetic stress sensor applications" (2005). Ames Laboratory Publications. 390.