Boron: Difference between revisions
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'''Boron''', chemical symbol B, is a trivalent nonmetallic element that never occurs as a free element in nature. In amorphous form, it is a brown powdery substance, while in crystalline form, it is hard and black. Boron has an atomic number of 5, a hardness (Moh's scale) of 9.3, and belongs to group 13 on the periodic table. | '''Boron''', chemical symbol B, is a trivalent nonmetallic element that never occurs as a free element in nature. In amorphous form, it is a brown powdery substance, while in crystalline form, it is hard and black. Boron has an atomic number of 5, a hardness (Moh's scale) of 9.3, and belongs to group 13 on the periodic table. | ||
Because of the remarkable hardness of boron compounds, boron fibers are commonly used by the [[United Nations Space Command|UNSC]] to reinforce other metals.<ref> | ==Usage== | ||
Because of the remarkable hardness of boron compounds, boron fibers are commonly used by the [[United Nations Space Command|UNSC]] to reinforce other metals. One example is prior to [[Operation: FIRST STRIKE]], when the [[SPARTAN-II Program|Spartan-IIs]] of [[Blue Team]] used boron fibers to reinforce the hull of a captured [[Taaku Xur-pattern Spirit|Spirit]] dropship.<ref>''[[Halo: First Strike]]'', Chapter 31</ref> | |||
==Sources== | ==Sources== | ||
{{Ref/Sources}} | |||
[[Category:Materials]] | [[Category:Materials]] | ||
[[Category:Elements]] | [[Category:Elements]] | ||
Latest revision as of 14:24, April 14, 2022
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There is more information available on this subject at Boron on the English Wikipedia. |
Boron, chemical symbol B, is a trivalent nonmetallic element that never occurs as a free element in nature. In amorphous form, it is a brown powdery substance, while in crystalline form, it is hard and black. Boron has an atomic number of 5, a hardness (Moh's scale) of 9.3, and belongs to group 13 on the periodic table.
Usage[edit]
Because of the remarkable hardness of boron compounds, boron fibers are commonly used by the UNSC to reinforce other metals. One example is prior to Operation: FIRST STRIKE, when the Spartan-IIs of Blue Team used boron fibers to reinforce the hull of a captured Spirit dropship.[1]
Sources[edit]
- ^ Halo: First Strike, Chapter 31
