Awarded Research Themes and Reports
Note: "Affiliation" in the table is based on the day of grant.
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| Grant Year | Research Theme | Principal Investigator, Co-Investigator (Country) |
Research Content Summary / Related Publication / Main Report |
|---|---|---|---|
| 2017 First |
Measurement and identification of variable friction on micro-textured tungsten carbide cutting tool surface in high speed machining | Assoc. Prof. Tuğrul Özel (USA) 17A04 |
Ⅰ. Summary There are several distinct advantages offered by micro-textures applied to cutting tool surfaces to reduce forces, friction, and wear. This project provides investigations on micro-grooves fabricated on the rake face of tungsten carbide inserts that were used in turning a titanium alloy under dry conditions. Tool inserts included varying micro-groove width (50 ~100 um), depth (10 ~ 30 um) and spacing (15 ~ 100 um). In the experiments, a constant depth of cut and a cutting speed were used. The effect of micro-textured tool surfaces on cutting force and tool wear was found to be significant. The effects of micro-texture geometry on the cutting forces, tool stresses, tool temperatures, tool wear rate and variable friction coefficient were studied with 3D finite element simulations. Ⅱ. Main Report (including Related Publication) 17A04 Main Report (HP).pdf Affiliation of Principal Investigator: Rutgers, The State University of New Jersey |
| Wear and tribochemical reactions in sliding contacts | Ms. Alessandra Ciniero (UK), Prof. Daniele Dini (UK) 17A09 |
Ⅰ. Summary There are several distinct advantages offered by micro-textures applied to cutting tool surfaces to reduce forces, friction, and wear. This project provides investigations on micro-grooves fabricated on the rake face of tungsten carbide inserts that were used in turning a titanium alloy under dry conditions. Tool inserts included varying micro-groove width (50 ~100 um), depth (10 ~ 30 um) and spacing (15 ~ 100 um). In the experiments, a constant depth of cut and a cutting speed were used. The effect of micro-textured tool surfaces on cutting force and tool wear was found to be significant. The effects of micro-texture geometry on the cutting forces, tool stresses, tool temperatures, tool wear rate and variable friction coefficient were studied with 3D finite element simulations. Ⅱ. Main Report (including Related Publication) 17A09 Main Report (HP).pdf Affiliation of Principal Investigator: Imperial College London |
|
| 2017 Second |
Influence of Two-dimensional Nanoparticles of α-ZrP as Additives in Grease on Tribological Performance | Mr. Yan Chen (USA), Prof. Hong Liang (USA) 17B08 |
Ⅰ. Summary This research investigated the anti-galling effects of α-zirconium phosphate (ZrP) nanoparticles as grease additives. We developed atest method to evaluate failure of surface materials and coatings under high contact pressure. This method simulated the working conditions of grease and thread compounds. Three ZrP nanoparticles with different morphological factors were studied. The nano-grease formulated with those particles were tested for friction, wear, and surface protection performance. Results showed that by adding 0.5wt% of α-ZrP nanoparticle in grease could reduce surface damage by 80% in comparison with a reference petroleum jelly. We analyzed the data and proposed the anti-galling mechanism of nanoparticle ZrP were exfoliating and covering of contacting surfaces. This research reveals insight from performance of grease with nanoparticles as additives. It helps future design and develop of new lubricant grease formulations. Ⅱ. Related Publication (Researcher doesn't agree to disclose main report.) 17B08 Related Publication (HP).pdf Affiliation of Principal Investigator: Texas A&M University |
| Investigation of the effect of wear on PV module glass surface for mechanical cleaning system | Dr. Md. Hasanuzzaman, Prof. Nasrudin Abd Rahim, Prof. Masjuki Hassan, Assoc. Prof. Md. Abul Kalam (all above Malaysia) 17A05 |
Ⅰ. Summary Poor transmission of sunlight through the top glass cover is one of the major hindrances in realizing better performance from PV modules. Adoption of appropriate cleaning technique might enhance transmissivity to a good extent. In the present study, effect of manual cleaning with nylon sponge, microfiber cloth and nylon brush on optical and mechanical properties of PV glass have been investigated for borosilicate and soda lime glasses. Examination of transmittance and absorptance of the samples using UV-VIS NIR scanning spectrophotometer confirmed enhanced transmissivity, wherein borosilicate glass exhibited better performance. Cleaning with nylon sponge showed the highest transmittance of 91.98% for borosilicate glass at 630 nm wavelength and that of 91.094% with soda lime at 525 nm wavelength. Ⅱ. Main Report (including Related Publication) 17A05 Main Report (HP).pdf Affiliation of Principal Investigator: University of Malaya |