I found one here: https://makezine.com/article/science/transparent-aluminum/
Also a video of it being used as Armor? https://www.youtube.com/watch?v=RnUszxx2pYc
I found one here: https://makezine.com/article/science/transparent-aluminum/
Also a video of it being used as Armor? https://www.youtube.com/watch?v=RnUszxx2pYc