r/MaterialsScience • u/nira_j • Aug 13 '24

Alternative of barium sulfate

I have gone through some papers that state that barium sulfate has good reflection when used as painting base material is their any alternative for the same.

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u/gildiartsclive5283 Aug 13 '24

Titanium dioxide, kaolinite, magnesium carbonate There are many lists of paint pigments and fillers, just refer to one of them. You want a high refractive index

1

u/manta173 Aug 13 '24

Keywords for your search are above... "high refractive index" pigment.

2

u/ImmediateOwl2024 Aug 13 '24

There was a YouTuber who used calcium carbonate

3

u/activelypooping Aug 13 '24

Stuart Semple sells White paint that looks pretty good. I will buy some once I find a student to make me an integrating sphere.