CAJ | 학술논문

以金属铜箔和镍粉为原料,采用涂覆法制备出Ni-Cu多孔薄膜.采用场发射扫描电子显微镜(FE-SEM)、X射线衍射仪(XRD)、原子力显微镜(AFM)等设备对所制Ni-Cu薄膜的显微结构、物相组成进行表征.通过压泡法对所制多孔薄膜的通量及孔径进行测试,并探讨薄膜的成孔机理.研究表明:所制备Ni-Cu多孔薄膜厚度约为50 μm,平均孔径约10 μm;涂覆面通过Ni粉的松装烧结形成多孔结构;铜箔一测的孔是由于Kirkendall效应所产生的空位沿着晶界扩散在表面聚集而成.
이금속동박화얼분위원료,채용도복법제비출Ni-Cu다공박막.채용장발사소묘전자현미경(FE-SEM)、X사선연사의(XRD)、원자력현미경(AFM)등설비대소제Ni-Cu박막적현미결구、물상조성진행표정.통과압포법대소제다공박막적통량급공경진행측시,병탐토박막적성공궤리.연구표명:소제비Ni-Cu다공박막후도약위50 μm,평균공경약10 μm;도복면통과Ni분적송장소결형성다공결구;동박일측적공시유우Kirkendall효응소산생적공위연착정계확산재표면취집이성.
Ni-Cu porous thin membrane was fabricated by slurry coating method using copper foil and nickel powders as raw materials. Field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), and atomic force microscope (AFM) were used to characterize the compositions and structures. Information of permeability and pore size was unveiled by bubbling method. And the formation mechanism of pores on membrane was discussed. Based on the results tested above, the thickness of porous membrane is about 50μm with pores of 10μm in diameter; pores on coating side are from free sintering; and voids on the foil side are derived from vacancies generated by Kirkendall effect, diffused along the grain boundaries and then sunk on the surface of Cu foil.