02687nas|a2200409 a 4500 20260818090848.0 060223s2005 th uu|m rtt 0| a1eng d .b11981556 AIT Thesis no.ME-05-09 Bali, Rantej Development of iron-based amorphous soft magnetic alloys from commercial cast-iron Pathum Thani, Thailand : Asian Institute of Technology, 2005 44 p. Thesis ; no. ME-05-09 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 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. Amorphous semiconductors Magnetic alloys 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 Asian Institute of Technology. Thesis ; no. ME-05-09 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B09820 .b11981556 mnait u 240405 0 060210 m a u 0 mnait mnarc 22 40 Barcode : 30050120657522 CREATED : 2014-03-21 RECORD # : i12777444 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160028352 CREATED : 2016-03-17 RECORD # : i12894783 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 29360 29360 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.ME-05-09 30050120657522 2026-08-18 09:08:48 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ME-05-09 30050160028352 2026-08-18 09:08:48 1 2026-08-18 40