The crystal structure can exert a profound effect on material's behavior in the environment of a nuclear reactor, as seen from the following examples: Void swelling can cause unacceptable dimensional changes in structures of fast reactors or fusion reactors (but not generally in light water reactors, except at higher...
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iron.nuc.berkeley.edu/~bdwirth/Public/NE120/documents/C...
iron.nuc.berkeley.edu/~bdwirth/Public/NE120/documents/Chap2.crystals.pdf
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The photograph to the right is of a natural (unpolished) piece of blue sapphire corundum crystal ... Structure of Corundum Crystals ... Structure of Corundum...
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www.ivy-rose.co.uk/Crystals-Individual/Corundum.php
www.ivy-rose.co.uk/Crystals-Individual/Corundum.php
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Aluminium oxide - Wikipedia, the free encyclopedia
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Aluminium oxide is an amphoteric oxide of aluminium with the chemical formula Al 2 O 3 . It is also commonly referred to as alumina , corundum, sapphire, ruby or aloxite in the mining, cerami...
en.wikipedia.org/wiki/Aluminium_oxide
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Pure Corundum (Al2O3) is rare in nature and is perfectly colorless. Small amounts of metalic elements can substitute for aluminum in the corundum crystal structure, giving rise to many color variations.
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www.mineralminers.com/html/corminfo.htm
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Pauling L Hendricks S B (1925) Crystal structures of hematite and corundum Locality: Ceylon. Journal of the American Chemical Society 47:781-790. Show; Unit Cell | Structure | Polyhedra; Style; Black Background | White Background;
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www.mindat.org/min-1136.html
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Crystal Forms and Aggregates ... Corundum is a very hard, tough, and stable mineral. It is the hardest mineral after Diamond, making it the second hardest mineral. It is also unaffected by acids and most environments. Translucent brown Corundum and Emery are the most common forms of Corundum.
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www.minerals.net/mineral/oxides/corundum/corundum.htm
www.minerals.net/mineral/oxides/corundum/corundum.htm
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Chemical composition -- Aluminum oxide. ... Color -- almost all colors. Medium to dark red stones are known as ruby; other colors, sapphire. ... Crystal structure -- Hexagonal .
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www.tradeshop.com/gems/corundum.html
www.tradeshop.com/gems/corundum.html
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Mineral Structure Data ... The corundum group is composed of the sesqui-oxide minerals of Aluminum (corundum), iron (hematite), chromium (eskolaite), and vanadium (karelianite). Also synthetic Ti2O3 has this structure but has ... The crystal structure of corundum with c vertical is very dense and has face-sharing octahedra.
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ruby.colorado.edu/~smyth/min/corundum.html
ruby.colorado.edu/~smyth/min/corundum.html
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