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term: Pechini method

Determination:

a method of synthesis of highly homogeneous and finely dispersed oxide materials including formation of complexes and production of polymer gel as an intermediate product.

Description:

The Pechini method was proposed in 1967 as a technique of depositing dielectric films of titanates and niobates of lead and alkaline-earth elements in the production of capacitors. Later, the process was customised for the in-lab synthesis of multicomponent finely dispersed oxide materials. The ...

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term: cryomilling

cryomilling

Determination:

mechanical pulverisation of solids at low temperatures, up to the boiling point of liquid nitrogen (77 K).

Description:

A significant increase in the brittleness of substances and materials at cryogenic temperatures allows the pulverisation of solids that demonstrate plastic behaviour at room temperature (rubber, lead), and significantly reduces the particle size in the pulverisation of brittle materials. This is ...