다이아몬드 분말상에 무전해 Ni-B 도금을 위한 계면활성제의 영향

• Published in: Biuletyn Uniejowski Vol. 50; no. 3; pp. 177 - 182
• Main Authors: 양창열(Changyol Yang), 유시영(Si-Young Yu), 문환균(Hwan-Gyun Moon), 이정호(Jung-Ho Lee), 유봉영(Bongyoung Yoo)
• Format: Journal Article
• Language: Korean
• Published: 한국표면공학회 2017
• Subjects: 기계공학; Diamond powder; Surfactant etc; Complexing agent; Diamond wire saw; Electroless deposition; Dispersant; Reducing agent
• ISSN: 1225-8024; 2299-8403; 2288-8403
• DOI: 10.5695/JKISE.2017.50.3.177

The properties of electroless Ni-B thin film on diamond powder with different parameters (temperature, pH, surfactant etc.) were studied. The surface morphology, structure and composition distribution of the Ni-B film were observed by field effect scanning electron microscope (FE-SEM), energy-dispersive spectrometer (EDS), X-ray diffraction (XRD) and Auger electron spectroscopy (AES). The growth rate of Ni-B film was increased with increase of bath temperature. The B content in Ni-B film was reduced with increase of bath pH. As a result the structure of Ni-B film was changed from amorphous to crystalline structure. The PVP in solution plays multi-functional roles as a dispersant and a stabilizer. The Ni-B film deposited with adding 0.1 mM-PVP was strongly introduced an amorphous structure with higher B content (25 at.%). Also the crystallite size of Ni-B film was reduced from 12.7 nm to 5.4 nm.