退火對Fe76Si10B10Cr2Y2非晶薄帶軟磁性質之影響

Influence of annealing treatment on soft magnetic properties of Fe76Si10B10Cr2Y2 amorphous ribbon

洪麒淯(Chi-Yu Hung)

指導教授 ： 陳適範 ； 王錫九

國立臺北科技大學/工程學院/材料科學與工程研究所/碩士(2013年)

摘要

本研究探討退火對Fe76Si10B10Cr2Y2非晶薄帶軟磁性質之影響。以單輥熔射旋淬法製備成份Fe76Si10B10Cr2Y2之五元合金薄帶，並以快速升溫退火系統(RTP)，在真空下進行持溫退火，並設定不同溫度、時間等參數進行退火，分析其微觀結構及軟磁性質之變化。利用X光繞射儀(XRD)及掃描式電子顯微鏡(SEM)進行微觀結構分析。以同步熱分析儀(Simultaneous TGA/DSC)分析材料之特徵溫度，並藉由Kissinger方程式算出結晶活化能大小。以振動樣品磁力儀(VSM)量測薄帶之飽和磁化強度(Ms)及矯頑磁力(Hc)。以熱磁分析儀(TMA)量測薄帶之居禮溫度(Tc)。
實驗結果顯示，鑄態薄帶之飽和磁化強度為1.25 T，矯頑磁力為22.84 A/m，居禮溫度為564.4 K。鑄態薄帶經過適當溫度與時間退火後，其飽和磁化強度上升且矯頑磁力下降，顯示退火處理有助於軟磁性質的提升，最佳退火溫度與時間為500°C退火3分鐘，飽和磁化強度為1.37 T，矯頑磁力為1.11 A/m。

關鍵字

退火處理 ； 非晶薄帶 ； 軟磁性質

並列摘要

In this investigation, we explored the influence of annealing treatment on soft magnetic properties of Fe76Si10B10Cr2Y2 amorphous ribbon. Alloy ribbon with composition of Fe76Si10B10Cr2Y2 was synthesized by the single roller melt-spinning method. Microstructures were examined by XRD and SEM. To examine the thermal properties, the as-cast ribbon was measured with Simultaneous TGA/DSC. Kissinger plot method was used to obtain the activation energy of crystallization. Soft magnetic properties and Curie temperature were measured by VSM and TMA, respectively.
The magnetic measurements of the as-cast ribbon contained Ms, Hc and Tc. The value of Ms was 1.25 T, Hc was 22.84 A/m and Tc was 564.4 K. The soft magnetic properties of the optimum parameter for the annealing temperature and annealing time was at 500°C for 3 minutes, Ms was 1.37 T and Hc was 1.11 A/m. Therefore, the annealing treatment could improve the soft magnetic properties of the alloy ribbon.

並列關鍵字

Annealing treatment ； Amorphous ribbon ； Soft magnetic properties

參考文獻

[62] 陳俊明，微量Pd對Fe-Si-B非晶合金之玻璃形成能力及軟磁性質研究，碩士論文，國立台北科技大學材料科學與工程研究所，台北，2012。

[69] 吳柏勳，Fe-Mn-Si-B-Cu合金的玻璃形成能力與軟磁性質研究，碩士論文，國立台北科技大學材料科學與工程研究所，台北，2012。

[2] A. Inoue, T. Zhang, and T. Masumoto, "Preparation of Bulky Amorphous Zr-Al- Co-Ni-Cu Alloys by Copper Mold Casting and Their Thermal and Mechanical Properties," Materials Transactions, JIM, vol. 36, pp. 391-398, 1995.

[3] A. Inoue, "High Strength Bulk Amorphous Alloys with Low Critical Cooling Rates," Materials Transactions, JIM, vol. 36, pp. 866-875, 1995.

[5] A. Inoue and T. Zhang, "Impact Fracture Energy of Bulk Amorphous Zr55Al10Cu30Ni5 Alloy," Materials Transactions, JIM, vol. 37, pp. 1726-1730, 1996.