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Details in the process of making "blacker than vantablack" coatings (part 1?)

2020-01-21

[public] 313K views, 12.9K likes, 116 dislikes audio only

Recreating MIT's "blacker than vantablack" in a home shop (almost).

MIT press release: http://news.mit.edu/2019/blackest-black-material-cnt-0913

MIT nanotube-on-aluminum paper: https://sci-hub.tw/https://doi.org/10.1021/acsami.9b08290

NIST nanotube darkness comparison: https://aip.scitation.org/doi/pdf/10.1063/1.5009190

Shaper handheld CNC router: https://www.shapertools.com/

Almost-as-large quartz tube (I used 76mm OD) : https://www.ebay.com/itm/Fused-quartz-glass-tubing-OD-50mm-x-ID-46mm-x-L-1-240mm-48-Free-Shipping/113713893883

Insulating firebrick for tube furnace: https://www.ebay.com/itm/Insulating-FireBrick-Thermal-Ceramics-K-26-3-10-pk/131698699891

Black velvet on Amazon: https://www.amazon.com/gp/product/B07BGZ82XH/

LR-1 spectrometer: http://www.aseq-instruments.com/LR1.html

Applied Science on Patreon: https://www.patreon.com/AppliedScience


coat it with a whole bunch of catalyst particles
/youtube/video/Xr1AiExSAnU?t=118.54
apply this catalyst solution
/youtube/video/Xr1AiExSAnU?t=451.77899
grow these carbon nanotubes on the surface
/youtube/video/Xr1AiExSAnU?t=792.36902
grow the carbon nanotubes
/youtube/video/Xr1AiExSAnU?t=961
run the vacuum pump for a few minutes
/youtube/video/Xr1AiExSAnU?t=1172.63
measuring the reflectivity of all these samples
/youtube/video/Xr1AiExSAnU?t=1272.77