Solids sintering

Some plastics caimot be obtained in a low viscosity melt or solution that can be processed into a cellular state. For these cases two methods have been used to achieve the needed dispersion of gas in solid sintering of solid plastic particles and leaching of soluble inclusions from the solid plastic phase. 

From Isopropoxide in the Presence of HNO3 Titanium isopropoxide (11.36 parts) was slowly added to a solution of UNO, (1 part) in water (136.4 parts). The solution was aged for 3 d, dialyzed, evaporated, and the solid sintered to 300°C. 

When the spring constant is adjusted to save computation time, one has to be careful not to modify the elementary particle-to-particle interactions significantly. Kuwagi et al. [10] assumed that a real collision takes place in every fictitious collision predicted by the modified spring constant and simulated metallic solid sintering in fluidized bed. A similar approach can be adopted to deal with particle-to-particle heat transfer and/or van der Waals interactions. 

Solid, sintered ceramic part 95% TD (theoretical density = 3.01 g/cm )... 

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