Ionophore-based ion-exchange nanosphere emulsion was prepared and tested for the determination of thiocyanate. The emulsified nanosphere contained the cationic additive tridodecylmethyl ammonium chloride (TDMAC), the plasticizer, and the ionophore Mn(III)-salophen or Mn(III)-salen. This emulsion was used as titrating agent for thiocyanate complexation with ionophores, which could be transduced ...

Presented work shows the results of DSC measurement for six Sn based solders. The alloys Sn96Ag4, Sn99Cu1, Sn97Cu3, Sn96.5Ag3Cu0.5, Sn95.5Ag3.8Cu0.7 and Sn63Pb37 were studied in the temperature range from room temperature up to 400◦C. The transformation temperatures for melting as well as for solidification were influenced by the composition and thermal history of the alloys. The thermal histor...

Electron beam welds between dissimilar stainless steels with different solidification modes were studied with a view to elucidating the role of nucleation, cooling rate and direction of dendrite growth on the tendency towards metastable phase solidification. The results are compared with the solidification behaviour of levitation melted samples. It is demonstrated that with careful design, stai...

We describe a flexible method for large-scale production of polymeric microspheres by templating a microgel-stabilized oil-in-water (o/w) high internal phase emulsion.

In typical solidification processes the flow of molten metal is usually regarded as an unavoidable phenomenon potentially affecting the morphology of dendritic growth. Fundamental understanding of such flow is thus important for predicting and controlling solidification microstructures. This paper presents numerical simulations on the evolution of dendritic microstructures with melt convection....

Kinetic phase diagrams in technical alloys at different solidification velocities during rapid solidification are of great importance for guiding the novel alloy preparation, but are usually absent due to extreme difficulty in performing experimental measurements. In this paper, a phase-field model with finite interface dissipation was employed to construct kinetic phase diagrams in the ternary...

Methods 1. Quick's Method.-The method in use in this laboratory has been basically that of Quick, StanleyBrown, and Bancroft (1935), as modified later by Quick himself and others (Biggs and Macfarlane, 1949). In this method a fresh saline emulsion is prepared daily from a stock of acetone-dried human brain powder, which is kept stored in a vacuum desiccator at 40 C. 2. Toohey's Method.-This met...

The effect of silicone nano-emulsion softener against silicone conventional emulsion softener on the physical properties of cotton fabric has been studied. It is observed that the nano-emulsion softener improves the feel, softness and crease recovery to a higher extent compared to the conventional emulsion softener. However, the nano form of emulsion causes higher loss in strength with increase...