銀電極與氧化鑭－氧化矽－氧化硼－莫來石(LSBM)玻璃陶瓷共燒之介面微結構分析

Analysis of Interfacial Microstructures of Co-fired Silver Electrode and La-Si-B-O-mullite Glass Ceramics

王郁茹(Y.J. Wang) ； 韋文誠(W.C.J. Wei)

《材料科學與工程》 37卷4期 (2005/12) Pp. 173-181

https://doi.org/10.6409/JMSE.200512.0173

摘要

鑭矽硼氧化物(La2O3-SiO2-B2O3, LSB)玻璃添加莫來石(M)之LSBM玻璃陶瓷材料與銀電極在不同的燒結條件下共燒，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，探討在空氣中燒結時，在LSB玻璃中銀擴散遷移的現象。將LSBM/Ag燒結至760℃-840℃，介面處會產生一明顯的反應層，此反應層在燒結後出現了銀的奈米結晶，此結晶介於片狀的LaAl2.03(B4O10)O0.54晶體及玻璃相之間。反應層中各結晶相的含量亦因銀成份的影響而改變，孔隙率也隨之增加。但若在氬氣中燒結，LSBM/Ag介面並沒有反應層之生成。

關鍵字

介面反應 ； 銀 ； 玻璃陶瓷 ； 介面擴散

並列摘要

LSBM glass ceramics, which was a mixture of LSB (La2O3-SiO2-B2O3) glass and mullite (M) particles, co-fired with Ag electrode in different sintering conditions. The interfacial phases were characterized by X-ray diffractometry (XRD), and the microstructures between LSBM/Ag was studied by scanning and transmission electronic microscopy (SEM and TEM). As the sample sintering up to 840℃ in air, Ag migration was observed and an obvious reaction zone between LSBM and Ag was characterized. The zone appeared Ag nano-crystals neighboring to flaky crystals LaAl2.03 (B4O10)O0.54 and glass phase. The amounts of the crystalline phases and porosity in the reaction zone increased and were influenced by the Ag content. However, there was no reaction zone at the interface between LSBM and Ag when sintered in Ar atmosphere.

並列關鍵字

interfacial reaction ； silver ； glass ceramics ； interface diffusion