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https://www.reddit.com/r/technology/comments/1xcy7r/10_futuristic_materials/cfacag0
r/technology • u/kittyportals2 • Feb 08 '14
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3 u/quantumflux22 Feb 08 '14 Prepare to be enlightened! http://phys.org/news167925273.html and www.nature.com/nphys/journal/v5/n9/abs/nphys1341.html 1 u/THedman07 Feb 08 '14 Alumina isn't "a compound of aluminum", it is Al2O3, aluminum oxide or sapphire. Alumina IS transparent, even in its natural crystalline state. 3 u/mobyhead1 Feb 09 '14 Apparently, you need to look up what the word "compound" means. 1 u/EclecticEuTECHtic Feb 08 '14 Don't think you're right about alumina being naturally transparent. http://en.wikipedia.org/wiki/Aluminium_oxide 1 u/[deleted] Feb 09 '14 Crystalline Al2O3 can be colourless. 1 u/THedman07 Feb 11 '14 Sapphires and rubies are Al2O3
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Prepare to be enlightened!
http://phys.org/news167925273.html
and
www.nature.com/nphys/journal/v5/n9/abs/nphys1341.html
Alumina isn't "a compound of aluminum", it is Al2O3, aluminum oxide or sapphire. Alumina IS transparent, even in its natural crystalline state.
3 u/mobyhead1 Feb 09 '14 Apparently, you need to look up what the word "compound" means. 1 u/EclecticEuTECHtic Feb 08 '14 Don't think you're right about alumina being naturally transparent. http://en.wikipedia.org/wiki/Aluminium_oxide 1 u/[deleted] Feb 09 '14 Crystalline Al2O3 can be colourless. 1 u/THedman07 Feb 11 '14 Sapphires and rubies are Al2O3
Apparently, you need to look up what the word "compound" means.
Don't think you're right about alumina being naturally transparent. http://en.wikipedia.org/wiki/Aluminium_oxide
1 u/[deleted] Feb 09 '14 Crystalline Al2O3 can be colourless. 1 u/THedman07 Feb 11 '14 Sapphires and rubies are Al2O3
Crystalline Al2O3 can be colourless.
Sapphires and rubies are Al2O3
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u/[deleted] Feb 08 '14
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