Difference between revisions of "Boron carbide"
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== Description == | == Description == | ||
| − | An extremely hard, black crystalline powder. Boron carbide is used as an [ | + | An extremely hard, black crystalline powder. Boron carbide is used as an [[abrasive]] and as a refractory material. It is also provides increased resistance to chemicals and abrasion when it is added to ceramics and metal alloys. |
== Other Properties == | == Other Properties == | ||
Revision as of 09:00, 9 January 2014
Description
An extremely hard, black crystalline powder. Boron carbide is used as an Abrasive and as a refractory material. It is also provides increased resistance to chemicals and abrasion when it is added to ceramics and metal alloys.
Other Properties
Soluble in fused alkali. Insoluble in water, acids.
| Composition | B4C |
|---|---|
| Mohs Hardness | 9.0 |
| Melting Point | 2350 |
| Density | 2.6 |
| Boiling Point | 3500 |
Comparisons
Properties of Common Abrasives
Authority
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 111
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1374