Preparation of Corrosion-Resistant Films on Magnesium Alloys by Steam Coating

This chapter introduces a novel, chemical-free “steam coating” method for preparing films on magnesium (Mg) alloys and assesses their effectiveness in improving the corrosion resistance of two different Mg alloys. A film composed of crystalline Mg(OH)2 and Mg-Al layered double hydroxide (LDH) was successfully formed on AZ31 Mg alloy, and its corrosion resistance was evaluated through electrochemical measurements and immersion tests in an aqueous solution containing 5 wt.% NaCl. An anticorrosive film was also formed on Ca-added flame-resistant AM60 (AMCa602) Mg alloy via the same steam coating method and found to be composed of crystalline Mg(OH)2 and Mg-Al layered double hydroxide (LDH). Its corrosion resistance was also investigated, and the effectiveness of the steam coating method for improving the corrosion resistance of Mg was fully explored

Preparation of SiO 2

The effect of SiO2 capping on the optical properties of nanoparticles was investigated. The photoluminescence (PL) intensity was successfully improved by SiO2-capping. Sr2MgSi2O7:Eu,Dy nanoparticles were prepared by laser ablation in liquid. The SiO2 capping was performed using the Stöber method with ultrasonication. The TEM images indicated that the Sr2MgSi2O7:Eu,Dy nanocrystal was capped with amorphous SiO2, and the shape of the completely capped nanoparticle was an elliptical nanorod, which aggregated after a long SiO2 capping reaction time. The peak wavelength and the shape of the PL spectra were not changed by the pelletization and the laser ablation in liquid. The PL intensity of SiO2 capped nanoparticles was significantly increased. Nonradiative relaxation via surface defects and energy transfer to water molecules decrease the PL intensity. These phenomena accelerate in the case of nanoparticles. SiO2 capping would prevent these phenomena and improve the optical properties of nanoparticles. The combination of laser ablation in liquid and the chemical reaction is important to expand the applications of this method in various research fields

the case for shopping well : komorebi[hub] a retail incubator

Does retail have to be relegated to other negative economic forces in our city like gentrification, unaffordability, blandification? In a globalized economy, cities begin to look like one another, and even neighbourhoods within those cities are becoming homogenized at an alarming rate, dominated by chain stores and podium towers with hypermarkets. But neighbourhoods work best for residents when they are diverse, small grained, and are run by locals. The public - our cities - need to intervene to preserve identity and livability. Light filtering through the trees generates moments of warmth and discovery. The proposed ethical retail incubator is a space where the borders of retail diffuse into public space and amenities, generating moments of discovery. A forest of shops that dissolves the binaries of indoor-outdoor and public-private, allowing for new interactions with a business, a unique place to meet friends, or a moment in a commute that differs from the everyday banality of a changing city. We need to rethink how we interact with our cities and propose how retail can be a good social driver in the urban landscape.Applied Science, Faculty ofArchitecture and Landscape Architecture (SALA), School ofUnreviewedGraduat