CAJ | 학술논문

为解决材料在受力状态下微观形貌的检测问题,开发了一套原位拉伸实验装置.该装置可以与不同测量设备结合,在样品被拉伸过程中,观察微纳米尺度的形貌变化.对于一个20 mm长的样件,该装置可以实现拉伸的最大应变为400%,最大拉伸力为19.6 N.以薄膜材料为例,观察了样品在受轴向拉伸载荷状态下微米尺度和纳米尺度形貌的变化情况,同时得到了应力-应变曲线.实验结果验证了本装置的可行性.
위해결재료재수력상태하미관형모적검측문제,개발료일투원위랍신실험장치.해장치가이여불동측량설비결합,재양품피랍신과정중,관찰미납미척도적형모변화.대우일개20 mm장적양건,해장치가이실현랍신적최대응변위400%,최대랍신력위19.6 N.이박막재료위례,관찰료양품재수축향랍신재하상태하미미척도화납미척도형모적변화정황,동시득도료응력-응변곡선.실험결과험증료본장치적가행성.
In order to solve the problem of micro/nano topography measurement of materials under load, an in-situ tensile test device was developed, which can be integrated with various measurement instruments to measure the micro/nano topography variations of the samples in the tensile process. The maximum strain of 400% and the maximum tensile force of 19.6 N can be achieved by the device for a sample 20 mm in length. With thin film as the sample, the variations in the micro/nano topography of the sample under the coaxial tensile load were studied and the corresponding strain-stress curve was obtained. The feasibility of the device was verified by experimental results.