Study on the Evaluation of Mechanical Properties of Ceramic-Metal Joint

陶瓷-金属接头力学性能评价研究

• 批准号: 01550566
• 负责人: SEO Kenji
• 金额: $ 1.66万
• 依托单位: Himeji Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01550566/
• 关键词: ceramic; metal; brazed joint; thermal stress; J integral; joint of dissimilar materials; composite materials; numerical analysis; 接合; 残留応力

In order to improve the reliability at the ceramics-metal joints, the rational evaluating method for the mechanical characteristic of the joints was studied. A summary of the obtained results in this study was as follows :1) As a fundamental subject, the special characteristics of the thermal stress produced in the ceramics-to-metal bonded joints were verified. In order to find a method of decreasing the thermal stress, analyses by changing the thickness of an insert layer and the shape of the bonded joint were carried out. The experimental results of ceramics to metal bonded joint showed that changing of the joint shape was effective in decreasing the thermal stress.2) The good ceramics-metal joints were produced and these joints were tested by using three points bending test. According to the observation of fracture surface, some small defects were found even in the good joints. It was shown that the evaluation of mechanical properties of bonded joints should e done by using the J integral.3) The effect of some dominant parameters (ceramic/metal Young's modulus ratio E/E , thickness of an insert layer, Young's modulus E of the insert layer) on the J integral of bonded joints was clarified by numerical simulation.

为了提高陶瓷金属接头的可靠性，研究了关节机械特征的合理评估方法。这项研究中获得的结果的摘要如下：1）作为基本主题，验证了陶瓷与金属键关节中产生的热应力的特殊特征。为了找到减少热应力的方法，通过更改插入层的厚度和键合接头的形状来分析。陶瓷对金属键关节的实验结果表明，关节形状的变化有效地减少了热应力。2）产生了良好的陶瓷金属接头，并使用三个点弯曲测试对这些接头进行了测试。根据断裂表面的观察，即使在良好的关节中也发现了一些小缺陷。结果表明，键合接头的机械性能应通过使用J积分来完成。3）某些显性参数（陶瓷/金属Young的模量比E/E，插入层的厚度，插入层的模量e的厚度，插入层的模量e）对键合接头的j积分的厚度。

项目成果

Kenji Seo et al.: "Study on the thermal stress at a Ceramics-Metal Joint" JSME International Journal.

Kenji Seo 等人：“陶瓷-金属接头处的热应力研究”JSME 国际期刊。

瀬尾 健二: "き裂を含む異種接合材のJ積分値" 溶接学会論文集に発表予定.

Kenji Seo：《含有裂纹的异种接头的 J-积分值》 预定在日本焊接学会会刊上发表。

Kenji Seo et al.: "Study on the Thermal Stress at a CeramicsーMetal Joint" JSME International Journal (Series I). Vol.33,No.3. 342-348 (1990)

Kenji Seo 等人：“陶瓷-金属接头处的热应力研究”JSME 国际期刊（系列 I），第 33 卷，第 342-348 期（1990 年）。

瀬尾 健二: "き裂を含む異種接合材のJ積分値" 溶接学会論文集.

Kenji Seo：“J-含有裂纹的异种接头的积分值”日本焊接学会会议录。

Kenji Seo: "Study on the Thermal Stress at a Ceramics-Metal Joint" JSME International Journal (Series I). Vol. 33, No. 3. 342-348 (1990)

Kenji Seo：“陶瓷-金属接头处的热应力研究”JSME 国际期刊（系列 I）。