Research on Application of Ultra-Sonic Spectroscopy to Characterize-Surface Modified Layrs

应用超声波谱表征表面改性层的研究

• 批准号: 07555507
• 负责人: NARITA Toshio
• 金额: $ 0.64万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555507/
• 关键词: scanning acoustic microscope; surface wave; sound velocity; non-destructive inspection; ion-exchanged glass; residual stress; surface modification; V-Z curve; ボイラー; 高温腐食; 硫化腐食; 局部腐食; 粒界硫化; 塩化腐食; Fe-Cr合金; 硫化物; 超音波スペクトルスコピー; 非破壊観察; Agイオン浸透

Glass surfaces modified by diffusion of Ag ion were examined by a scanning acoustic microscope (Hitachi HSAM1000S), with a spherical beam lens and operating frequencies 200 and 400 MHz. The image was taken using the acoustic beam just- and under-focused conditions, and the fringe structure was observed, which has been never seen with an optical microscope.Metals of Ni or Cu joined to Si_3N_4 ceramics with Ag-Cu-Ti and Ni-Cu-TI brazing solders were thermally cycled in vacuum between room temperature and temperatures of 573,723, and 873K,and then the surface distortion and fracture strength of the joints were measured using a scanning acoustic microscopy and a four point bending test. In case of the Si_3N_4/Ni joints the Ni metal shrank at the early stage of the thermal cycling and then it tended to swell with the crack formation near the ceramic-filler interface.By using a slit-type acoustic lens, noisy interference fringe patterns near an interface can be eliminated, and the local measurement of the sonic wave velocity became possible.

采用日立HSAM1000S扫描声学显微镜，球面透镜，工作频率200 MHz和400 MHz，对银离子扩散改性玻璃表面进行了观察。在声束正聚焦和欠聚焦条件下拍摄了图像，观察到了光学显微镜从未见过的条纹结构。在室温和573、723和873K的真空中，用Ag-Cu-Ti和Ni-Cu-TI钎料将金属Ni或Cu连接到Si3N4陶瓷上，进行热循环，并用扫描声学显微镜和四点弯曲试验测量了接头的表面变形和断裂强度。对于Si3N4/Ni接头，Ni金属在热循环初期收缩，然后随着陶瓷-填料界面附近裂纹的形成而膨胀，通过使用狭缝式声透镜，可以消除界面附近的噪声干涉条纹，从而实现了对声波速度的局部测量。

项目成果

成田敏夫: "窒化珪素セラミックス・金属接合体の熱サイクルに伴う疲労特性の変化" 日本金属学会誌. 60(9). 884-889 (1996)

Toshio Narita：“热循环导致氮化硅陶瓷-金属接头疲劳性能的变化”，日本金属学会杂志 60(9) (1996)。

石川潔: "超音波顕微鏡によるき裂近傍の音速計測" 非破壊検査. 45(10). 749-755 (1996)

Kiyoshi Ishikawa：“使用超声波显微镜测量裂纹附近的声速”无损检测 45(10)。

野口学: "低硫黄分圧におけるFe-Cr合金の硫化挙動" 日本金属学会誌. 60(2). 198-204 (1996)

Manabu Noguchi：“低硫分压下 Fe-Cr 合金的硫化行为”，日本金属学会杂志 60(2) (1996)。

I.Ishikawa, Y.Ogura, S.Ikeda, M.Suganuma, T.Narita: "Measurement of Sound Velocity Near a Crack by an Acoustic Microscope" Non-destructive Inspection. Vol.45(10). 749-755 (1996)

I.Ishikawa、Y.Ogura、S.Ikeda、M.Suganuma、T.Narita：“用声学显微镜测量裂纹附近的声速”无损检测。

野口 学: "鉄・クロム硫化物(Fe, Cr) _1 Sの高温における非化学量論組成" 日本金属学会誌. 60(9). 589-594 (1996)

Manabu Noguchi：“高温下铁和铬硫化物 (Fe, Cr)_1S 的非化学计量组成”，日本金属学会杂志 60(9) (1996)。