Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Yun Peng Qu"'
Publikováno v:
Journal of Nanoscience and Nanotechnology. 20:1838-1844
Pt/Bi2WO6 composite photocatalysts were prepared by a facile photoreduction method. Pt nanoparticles with an average size of 5–8 nm were successfully deposited on the surface of Bi2WO6 microspheres and the photocatalytic activity of Bi2WO6 was grea
Publikováno v:
Materials Science Forum. 898:1776-1782
The corresponding relationship among KDP solution viscosity, concentration and temperature was researched respectively, to explore the empirical formula of the viscosity of KDP solution. The experimental results showed that the viscosity increased wi
Publikováno v:
Materials Science Forum. 898:1783-1786
The viscosity of potassium dihydrogen phosphate, KH2PO4 (KDP), aqueous solution within magnetic field was studied. Experimental results showed that, the viscosity of saturated KDP solution exhibited multiple extreme values when the magnetic field int
Publikováno v:
Materials Science Forum. 898:1770-1775
Al/Epoxy composites with different Al content were prepared by insulation coating process including high energy ball milling and hot press. The electrical properties and magnetic performance including ac conductivity, permittivity, reactance and perm
Autor:
Dong-Qing, He, Hong-Cheng, Liu, Qi, Wang, Qian, Yu, Jin-Ying, Liu, Yun-Peng, Qu, Xiao-Chen, Zhang
Publikováno v:
Journal of nanoscience and nanotechnology. 20(3)
Pt/Bi₂WO
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 77:1305-1314
Cemented carbide micro-drills (0.1 to 0.3 mm in diameter) wear down or break casually while drilling micro-holes in printed circuit boards (PCBs). This study focused on the interaction between cemented carbide and PCB and its effects on PCB micro-dri
Publikováno v:
Journal of Materials Processing Technology. 212:1989-1997
In this paper, micro-drills with diameters of 0.1–0.3 mm were used to drill printed circuit boards (PCBs) with a highest spindle speed of 300 krpm. To study the wear mechanisms of PCB micro-drills, micro-drill morphology was observed, and the flank
Publikováno v:
Advanced Materials Research. 500:26-31
In the PCB micro drilling, because the force signal is tiny, and when the micro-drill drill to a certain degree of multilayer PCB, alternate force signals will not appear obvious, through to the drilling force signal analysis, we can know the drill b
Publikováno v:
Key Engineering Materials. 496:259-265
This work is focused on the investigation of the influence of the materials of PCB, feed rate, spindle speed and tool wear on thrust force when drilling PCB using 0.3 mm diameter cemented tungsten carbide drills. The results indicate that thrust forc
Publikováno v:
Advanced Materials Research. 188:441-449
Drilling is a particularly complicated machining process, and it becomes much more complicated when the workpiece is printed circuit boards (PCBs). PCB is composite materials with anisotropy. Even a small defect in PCB may cause great losses. Both th