Zobrazeno 1 - 10
of 273
pro vyhledávání: '"Hau-Chung Man"'
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 4, Pp 1346-1366 (2024)
This study offers significant insights into the multi-physics phenomena of the SLM process and the subsequent porosity characteristics of ZK60 Magnesium (Mg) alloys. High-speed in-situ monitoring was employed to visualise process signals in real-time
Externí odkaz:
https://doaj.org/article/c3ec8b5ab2f643f69c6714b6de0730df
Publikováno v:
Journal of Laser Applications. 35
In this study, an appropriate scanning strategy in selective laser melting [SLM, also known as laser powder bed fusion (LPBF)] was adopted to enhance the forming quality of stainless steel (SS) 316L for load-bearing implant applications, with a parti
Publikováno v:
Applied Surface Science. 492:314-327
Magnesium phosphate (Mg P) conversion coatings were prepared on AZ31 magnesium (Mg) alloy to improve its corrosion resistance. The effect of pH value (2.5, 3.0, 3.5 and 4.0) and preparation temperature (40 °C, 60 °C and 80 °C) on the formation of
Publikováno v:
Applied Surface Science. 464:404-411
Metal-polymer articulating pairs are common in engineering applications. The present study aims at improving the wear resistance of the polymeric part and the wear-corrosion resistance of the metallic part in the CoCrMo-UHMWPE (ultrahigh-molecular-we
Publikováno v:
Materials Letters. 228:314-317
A simple hydrothermal method was used to synthesize silver-doped zirconia-reduced graphite oxide (Ag-ZrO2/r-GO) composite coating on CoCrMo, an alloy commonly used in artificial hip joints. The Ag-ZrO2/r-GO coating is mainly intended to extend the se
Publikováno v:
Sensors and Actuators B: Chemical. 255:944-951
A micro-nano hybrid technique is implemented to produce Pd-nanogapped gas sensors with tunable H2 sensing properties. The basic idea is to deposit a Pd film on a SiO2-coated Si micropillar array. By adjusting the SiO2-gap size and Pd film thickness,
Autor:
Ka Seng Lau, Meng Zhao, Jeffery Tai Kin Cheung, Ngai Hang Ng, Man Hon Wong, Hau Chung Man, Chung Wo Ong
Publikováno v:
Sensors and Actuators B: Chemical. 251:1068-1075
Room-temperature dynamic light-enhanced galvanometric response of supersonic cluster beam deposited (SCBD) zinc oxide (ZnO) films to oxygen (O2) was investigated. The photocurrent was recorded when above-bandgap light is turned on, being maintained a
Publikováno v:
Sensors and Actuators B: Chemical. 249:624-631
Hydrogen (H2)-induced resistive response of palladium (Pd)-decorated zinc oxide “nanosponge” (Pd/ns-ZnO) film was studied at different operation temperatures with and without UV illumination. The as-deposited ns-ZnO film, fabricated using a super
Publikováno v:
Corrosion Science. 118:168-177
In this study, NiCrAlY coatings were additively manufactured on the surface of IN738 substrate through a laser-aided additive manufacturing approach. The high-temperature oxidation behavior of freestanding coatings at 1200 °C was also investigated.
Publikováno v:
Ng, C H, Chan, C W, Man, H C, Waugh, D G & Lawrence, J 2017, ' NiTi shape memory alloy with enhanced wear performance by laser selective area nitriding for orthopaedic applications ', Surface and Coatings Technology, vol. 309, pp. 1015-1022 . https://doi.org/10.1016/j.surfcoat.2016.10.042
In recent years, near-equiatomic NiTi alloy has been identified as a sound alternative to replace the conventional Ti6Al4V alloy as the next generation orthopaedic biomaterial because of its lower young modulus and unique shape memory effect. The pot