Module 3 : Chemical and non–chemical approach to materials synthesis - part 1

Lecture 22: Solid-State Synthesis

Steps in Conventional Solid State Synthesis

1. Select appropriate starting materials

a) Fine grain powders to maximize surface area
b) Reactive starting reagents are better than inert
c) Well defined compositions

2. Weigh out starting materials

3. Mix starting materials together

a) Agate mortar and pestle (organic solvent optional)
b) Ball Mill (Especially for large preps > 20g)

4. Pelletize

a) Enhances intimate contact of reactants
b) Minimizes contact with the crucible
c) Organic binder may be used to help keep pellet together