Bali, Rantej creator Fleury, Eric Chairperson Dutta, Joydeep Examination Committee Lim, Sang Ho Examination committee Korea Institute of Science and Technology Scholarship donor Asian Institute of Technology Scholarship donor text series technical report th Pathum Thani, Thailand Asian Institute of Technology 2005 continuing eng 44 p. An alloy has been designed using cast iron as a base and modified by additions of A1, B, Y and Cu to the Fe-C master alloy in order to achieve glass forming ability as well as good magnetic properties. Amorphous ribbons were synthesized by rapidly quenching at 106 K/s and the devitrification process was controlled by varying the Y and Cu contents so as to achieve a composite structure of bcc Fe nanocrystals in an amorphous matrix. An improvement of saturation magnetization was observed by annealing the as-quenched ribbons. However, coercivity does not necessarily improve upon annealing, and therefore, the annealing should be judiciously scheduled. Effect of minor impurities in cast iron on the coercivity and saturation of these alloys was found to be insignificant. This study is a start towards making nanostructured materials more cost-effective without losing their functionality. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies Thesis (M.Eng.) - Asian Institute of Technology, 2005 Amorphous semiconductors Magnetic alloys Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B09820 http://203.159.5.9/ait-thesis/detail.php?q=B09820 060223 20260818090848.0