Meanings
Usage patterns
〈物〉の材料the ingredients/materials for ~
I got together the ingredients for this cake.
材料を集めるto gather materials
I'm gathering material to write the report.
材料を切るto cut (cooking) ingredients
First cut the ingredients, then stir-fry them.
〈事〉の材料にするto use ~ as material/subject matter for something
He used his own experience as material for his novel.
判断材料にするto use ~ as a basis for judgment
Let's decide using this data as our basis.
材料が乏しいto lack sufficient grounds/evidence
There's little evidence to support that claim.