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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 韋文誠 | |
dc.contributor.author | Yu-Ju Wang | en |
dc.contributor.author | 王郁茹 | zh_TW |
dc.date.accessioned | 2021-06-13T08:07:28Z | - |
dc.date.available | 2005-07-27 | |
dc.date.copyright | 2005-07-27 | |
dc.date.issued | 2005 | |
dc.date.submitted | 2005-07-21 | |
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Gauckler, “Thermodynamic assessment of the silver-oxygen system,” J. Am. Ceram. Soc., 80[12], pp.3054-3060, 1997. 43. Colin J. Smithells and Eric A. Brandes, Metals Reference book, 5thed., London, Boston, Butterworths, 1976. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/36604 | - |
dc.description.abstract | 本研究針對銀電極與La-Si-B-O-mullite系(LSBM)及Mg-Si-B-Al系(MSBA)玻璃陶瓷在不同的燒結條件下共燒,研究分析所產生的反應層形態及其控制機構。其介面生成相藉由X光繞射分析儀( XRD )予以分析,其微結構使用掃描式及穿透式電子顯微鏡( SEM and TEM )來觀察。
為探討在空氣中燒結時在LSB玻璃中銀擴散的現象,將D-LSBM/Ag燒結至760oC-840oC,介面處產生一明顯的反應層,其反應活化能為246 kJ/mole,此反應層在燒結後出現了銀的奈米結晶,大小約幾10~200nm左右。銀在燒結升溫過程中先氧化,並藉由玻璃相擴散,並在降溫時析出在玻璃相中。由於銀擴散進入玻璃相的關係,使得玻璃轉移溫度( Tg )、結晶起始溫度( To )及結晶尖峰溫度( Tp )等溫度下降,導致燒結後的胚體緻密度下降,反應層中之結晶量明顯的增加。此反應層生長之控制機構主要為銀離子在硼矽玻璃中的擴散。但若在氬氣中燒結,在玻璃陶瓷層鄰近LSBM/Ag介面處偵測不到銀的訊號,更無明顯的反應層生成。 另一方面,將銀與MSBA玻璃陶瓷複材共燒,觀察其介面的微結構,銀同樣地擴散進入玻璃相中。介面之反應層分成三個區域,各區域之玻璃基底皆含銀成份,結晶相中則無銀的訊號。由於反應層1中Mg-Al-Si結晶相之生成,減少銀擴散進入玻璃之路徑,使得擴散梯度趨於平緩,又由於鎂往電極方向聚集,且鋁在反應層2中稍有增加,造成反應層1及2中之銀含量低於反應層3,故最終銀濃度之分布並非呈現一般擴散現象。 | zh_TW |
dc.description.abstract | In this research, the reaction layers produced from silver electrode cofired with La-Si-B-O-mullite (LSBM) or Mg-Si-B-Al (MSBA) glass ceramic composites in different sintering conditions were analyzed, and the controlled mechanism was investigated. The grown phases were characterized by X-ray diffractometry (XRD), and the microstructures were studied by scanning and transmission electronic microscopy (SEM and TEM).
In order to study the phenomenon of Ag diffusion into the LSB glass in air, the D-LSBM/Ag laminated samples was sintered at 760oC-840oC and characterized. The activation energy was 246 kJ/mole and the Ag nano-crystals in the sizes between 10~200nm were found appearing in the reaction zone after sintering. Ag, at first, was oxidized in the sintering process, and diffused into the glass. Then Ag nano-particles grow by over-saturation in the glass when cooling. The glass transition temperature (Tg), onset crystallization temperature (To), and the crystallization peak temperature (Tp) decreased because of the Ag diffusion into the glass. The diffusion also degraded the densification, but increased the amount of crystalline phase in the reaction zone. Ag+-ion diffusion in Si-B-O glass was the main controlled mechanism of the formation of reaction zone. However, if the LSBM/Ag sintered in Ar atmosphere, the Ag signal could not be detected on the glass ceramic layer nearby LSBM/Ag interface, and no obvious reaction zone was produced. On the other hand, when the Ag cofired with MSBA glass ceramic composite, the microstructure of the interface revealed that Ag had diffused into the glass. The reaction of the interface consisted of three zones. Each zone appeared a glass matrix consisting of Ag. But, there was no Ag signal in the crystal phase. The path of the Ag diffusion was gradually blocked by the production of Mg-Al-Si crystalline phase in the zone 1. Because of the Mg content diffused toward electrode, and the slight increase of Al content in zone 2, the Ag concentration in zone 1 and 2 was lower than that in zone 3. The final distribution of Ag concentration didn’t reflect a general diffusion phenomenon. | en |
dc.description.provenance | Made available in DSpace on 2021-06-13T08:07:28Z (GMT). No. of bitstreams: 1 ntu-94-R92527002-1.pdf: 7502666 bytes, checksum: 32391bf28f1b92aee1d335e488990c13 (MD5) Previous issue date: 2005 | en |
dc.description.tableofcontents | 目錄
摘 要 I Abstract III 目錄 V 圖目錄 IX 表目錄 XV 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 3 2.1 低溫共燒陶瓷(LTCC) 3 2.2 玻璃陶瓷(Glass-Ceramic)系統 11 2.3 應用於LTCC之電極 16 2.4 玻璃陶瓷與銀電極之介面反應 22 第三章、實驗步驟 31 3.1實驗材料 31 3.1.1 LSBM玻璃陶瓷系統 31 3.1.2 商業化的MSBA玻璃陶瓷系統 32 3.1.3 LABA玻璃陶瓷系統 32 3.2 實驗流程 32 3.2.1 LSBMAg、MSBAAg複合粉末的製備 33 3.2.2 乾壓成形 33 3.2.3 與銀電極共燒之試片製備 33 3.2.4 熱脫脂 34 3.2.5 燒結步驟 34 3.3 性質分析 35 3.3.1 密度量測 35 3.3.2 粒徑與表面積之量測 37 3.3.3 X光繞射分析 37 3.3.4 熱分析 37 3.3.5 SEM微結構觀察 38 3.3.6 TEM微結構觀察 39 第四章、結果與討論 47 4.1 玻璃陶瓷複合粉體材料之基本性質 47 4.1.1 晶相分析 47 4.1.2 粉體微結構及成分分析 48 4.1.3 粒徑、表面積與生胚密度 49 4.2 LSBM玻璃陶瓷與銀電極共燒之微結構觀察及分析 55 4.2.1 LSBMAg複合材料之觀察及分析 55 4.2.2 LSBM薄帶與銀電極共燒之微結構觀察 56 4.2.3 介面處之結晶相分析 59 4.2.4 燒結氣氛之影響 62 4.3 銀在緻密LSBM玻璃陶瓷中的擴散行為 80 4.3.1 反應層生成之速率 80 4.3.2 銀的擴散係數 83 4.4 商業化的MSBA玻璃陶瓷與銀電極共燒之微結構觀察及分析 96 4.4.1 MSBA玻璃陶瓷之微結構觀察 96 4.4.2 介面微結構分析 96 4.4.3 銀在MSBA玻璃陶瓷中的擴散 99 第五章 討論 110 5.1 銀擴散的機制 110 5.2初始擴散點的決定 114 5.3 擴散模式 115 第六章、結論 123 附錄、LABA玻璃陶瓷與銀電極共燒之微結構觀察及分析 125 A-1 研究目的: 125 A-2 實驗步驟: 125 A-3 結果與討論: 126 第七章、參考文獻 131 | |
dc.language.iso | zh-TW | |
dc.title | 銀電極與玻璃陶瓷之介面反應研究 | zh_TW |
dc.title | The Interfacial Reaction between Silver Electrode and Glass Ceramics | en |
dc.type | Thesis | |
dc.date.schoolyear | 93-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 莊東漢,王錫福,李文熙 | |
dc.subject.keyword | 介面反應,銀,玻璃陶瓷,擴散, | zh_TW |
dc.subject.keyword | interfacial reaction,silver,glass ceramics,diffusion, | en |
dc.relation.page | 135 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2005-07-21 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 材料科學與工程學研究所 | zh_TW |
顯示於系所單位: | 材料科學與工程學系 |
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