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WETTABILITY OF MICRON・SUBMICRON METAL POWDERS ON CERAMICS AND IT'S TECHNICAL APPLICATION

微米、亚微米金属粉末对陶瓷的润湿性及其技术应用

基本信息

批准号：
63550481
负责人：
TAGUCHI Osamu
金额：
$ 1.28万
依托单位：
MIYAGI NATIONAL COLLEGE 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：
1988
资助国家：
日本
起止时间：
1988 至 1989
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63550481/
关键词：
WETTABILITY CONTACT ANGLE CERAMICS JOINING COMPOSITE MATERIALS 微粉末

项目摘要

Using self-made apparatus for the measurement of wettability and the metal powder, the wettability of fine size metal powder (about 10-700 mum) on ceramics has been investigated and discussed with the application of insert metal powder for the joining between ceramics and metal.Improvements of the wettability measurement apparatus have been made on vacuum system. setting of optical microscope and control system of temperature in 1988 and 1989. By these improvement, it has been capable to study the metability measurement at high vacuum, to obtain the high resolution of the contact angle and to improve the accuracy of the experimental temperature.The experimental results are summarized as follows;1) For all the wetting systems(Si_3N_4-Al,Si_3N_4-Cu,SiC-Al,ZrO_2-Al,ZrO_2-Cu,Al_2O_3-Al,Al_2O_3-Cu and Si_3N_4-(Al-Si alloys), the temperature and time dependence of wettability and the observation of microstructure of a contact inerface between ceramics and metal have been studied. The particl … More e size dependence of the wettability has been investigated in the Si_3N_4-Al and ZrO_2-Al systems. The temperature and time dependence of the metability have been recognized in the wetting systems except the Si_3N_4-Cu, ZrO_2-Cu and Al_2O_3-Cu systems. The reaction layer has been formed at the contact interface in Al_2O_3-Al and Al_2O_3-Cu systems. It has been found out that the wettability is improved with decreasing the particle size of powder metal.2) From the wetting behavior in the Si_3N_4-Al and Si_3N_4-(Al-Si alloy) systems, it is found that the reaction and the diffusion of components at the contact interface are not responsible for the wettability.3) For technical application of the present work. it has been suggested as follows. (1) The use of fine particle metal powder is recommended as a insert metal. (2) For the product of a Si_3N_4-AI composite materials. pure Al and Al-Si alloy show the same behavior of the wetting.4) On the submicron size, it is found that the wettability is improved with decreasing particle size, however. the quantitative experimental results have not been obtained yet. Less

利用自制的润湿性测量装置和金属粉末，对细粒度金属粉末（约10-700μm）在陶瓷上的润湿性进行了研究和讨论，并在陶瓷与金属的连接中应用插入金属粉末。对润湿性测量装置的真空系统进行了改进。 1988年和1989年完成了光学显微镜的设置和温度控制系统。通过这些改进，已经能够研究高真空下的接触角测量，获得高分辨率的接触角，提高实验温度的准确性。实验结果总结如下：1）对于所有润湿研究了体系(Si_3N_4-Al,Si_3N_4-Cu,SiC-Al,ZrO_2-Al,ZrO_2-Cu,Al_2O_3-Al,Al_2O_3-Cu和Si_3N_4-(Al-Si合金)的润湿性的温度和时间依赖性以及陶瓷与金属接触界面微观结构的观察。在Si_3N_4-Al和ZrO_2-Al体系中研究了润湿性的尺寸依赖性。除Si_3N_4-Cu、ZrO_2-Cu和Al_2O_3-Cu体系外，润湿体系中均态性的温度和时间依赖性已得到认可。 Al_2O_3-Al和Al_2O_3-Cu体系的接触界面处形成了反应层。据了解，随着粉末金属粒径的减小，润湿性得到改善。2）从Si_3N_4-Al和Si_3N_4-（Al-Si合金）体系中的润湿行为发现，接触界面处组分的反应和扩散并不影响润湿性。3）对于本工作的技术应用。建议如下。 (1) 推荐使用细颗粒金属粉末作为嵌入金属。 (2)对于Si_3N_4-AI复合材料的产物。纯Al和Al-Si合金表现出相同的润湿行为。4)然而，在亚微米尺寸上，发现润湿性随着颗粒尺寸的减小而提高。尚未获得定量实验结果。较少的