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研究生:何昆諭
研究生(外文):Kun-Yu Ho
論文名稱:添加物對鎳鋅銅鐵氧體之高頻品質因子影響
論文名稱(外文):Effects of additives on the Quality factor of Ni-Zn-Cu ferrites at high frequencies
指導教授:王錫福
指導教授(外文):Sea-Fue Wang
口試委員:林於隆吳玉娟徐永富
口試日期:2012-05-17
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:材料科學與工程研究所
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:74
中文關鍵詞:鎳鋅銅鐵氧體固態合成法品質因子初始導磁率
外文關鍵詞:Ni-Zn-Cu ferritesSolid-state synthesisQuality factorInitial permeability
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本研究利用固態合成法製備鎳鋅銅鐵氧體之Ni0.9-xZn0.1CuxFe2O4,欲找出一品質因子在頻率100 KHz~10 MHz間較高者,然後以其為基材添加Co3O4、CaCO3、SnO2與SiO2粉末,生胚燒結緻密後量測其電磁特性與觀察其微結構。
  研究中發現基材選定為Ni0.88Zn0.1Cu0.02Fe2O4時,有最高的品質因子趨勢,在800KHz有最高值102.0。而後添加各種粉末,在添加2 wt%CaCO3以及4 wt%SiO2時,在1MHz左右其最高的品質因子有所上升,分別為124.0與128.3;而添加Co3O4與SnO2則對最高的品質因子沒有顯著影響,但是過量添加會導致品質因子以及初始導磁率都下降,尤其添加Co3O4超過1 wt%時,初始導磁率會由36.9降至10以下。此外,共同添加CaCO3與Co3O4各0.5 wt%時,在3MHz的頻率下,品質因子可達137.9。


In this study, using solid-state synthesis to prepare Ni0.9-xZn0.1CuxFe2O4, and tring to find a better formula on the quality factor between the frequency of 100 KHz to 10 MHz, then using it to add Co3O4, CaCO3, SnO2 and SiO2 powder. After getting some dense samples by sintering, measuring the magnetic and electrical properties and observing their microstructure.
Using Ni0.88Zn0.1Cu0.02Fe2O4 as the substrate, finally. Because the quality factor of this ferrite has the highest value of 102 in 800 KHz. Then adding kinds of powder. When adding CaCO3 and SiO2 powder, in the condition of 2 wt% and 4wt%, the qulity factor has increased to 124.0 and 128.3 in 1 MHz, respectively. Adding Co3O4 and SnO2 powder has no significant impact on the highest quality factor. But excessive adding makes the quality factor and the initial permeability to decrease. In particular, adding Co3O4 more than 1 wt%, the initial permeability decreased from 36.9 to 10 below. In addition, commonly adding CaCO3 and Co3O4 powder of 0.5 wt%, the quality factor can up to 137.9 in 3 MHz.


摘 要 i
ABSTRACT ii
致 謝 iii
目 錄 iv
表目錄 vi
圖目錄 viii
第一章 緒論 1
1.1 前言 1
1.2 研究目的 2
第二章 文獻回顧與理論基礎 3
2.1 添加銅對於鎳鋅鐵氧體的影響 3
2.2 添加鈷對於鎳鋅鐵氧體的影響 5
2.3 添加鈣和矽對於鎳鋅鐵氧體的影響 8
2.4 添加錫對於鎳鋅鐵氧體的影響 12
2.5 添加釩及鉍對於鎳鋅鐵氧體的影響 13
2.6 鋅含量對於鎳鋅鐵氧體的影響 15
2.7 功率損失對於鎳鋅鐵氧體的影響 18
第三章 實驗方法 19
3.1 實驗材料 19
3.2 實驗配方及流程 20
3.3 測量方法與儀器 25
3.3.1 密度測量 25
3.3.2 X光繞射儀 25
3.3.3 掃瞄式電子顯微鏡 26
3.3.4 阻抗分析儀 27
第四章 結果與討論 29
4.1 添加CuO對鎳鋅鐵氧體之影響 29
4.1.1 Ni0.9-xZn0.1CuxFe2O4之密度分析 29
4.1.2 Ni0.9-xZn0.1CuxFe2O4之XRD分析 30
4.1.3 Ni0.9-xZn0.1CuxFe2O4之微結構分析 32
4.1.4 Ni0.9-xZn0.1CuxFe2O4之初導磁率及品質因子分析 34
4.2 添加Co3O4對鎳鋅銅鐵氧體之影響 36
4.2.1 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% Co3O4之密度分析 36
4.2.2 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% Co3O4之XRD分析 37
4.2.3 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% Co3O4之微結構分析 39
4.2.4 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% Co3O4之初導磁率及品                                  質因子分析 40
4.3 添加CaCO3對鎳鋅銅鐵氧體之影響 43
4.3.1 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% CaCO3之密度分析 43
4.3.2 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% CaCO3之XRD分析 44
4.3.3 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% CaCO3之微結構分析 46
4.3.4 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% CaCO3之初導磁率及品質因子分析 48
4.4 共添加CaCO3與Co3O4對鎳鋅銅鐵氧體之影響 50
4.4.1 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% CaCO3+x wt% Co3O4之密度分析 50
4.4.2 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% CaCO3+x wt% Co3O4之XRD分析 51
4.4.3 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% CaCO3+x wt% Co3O4之微結構分析 53
4.4.4 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% CaCO3+x wt% Co3O4之初導磁率與品質因子分析 55
4.5 添加SiO2對鎳鋅銅鐵氧體之影響 57
4.5.1 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% SiO2之密度分析 57
4.5.2 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% SiO2之XRD分析 58
4.5.3 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% SiO2之微結構分析 60
4.5.4 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% SiO2之初導磁率與品質因子分析 62
4.6 添加SnO2對鎳鋅銅鐵氧體之影響 64
4.6.1 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% SnO2之密度分析 64
4.6.2 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% SnO2之XRD分析 65
4.6.3 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% SnO2之微結構分析 67
4.6.4 Ni0.88Zn0.1Cu0.02Fe2O4+x wt% SnO2之初導磁率及品質因子分析 69
第五章 結論 71
參考文獻 72


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