PUBLISHED BY KEN DUNN - DUNWAY ENTERPRISES
|Victoria Transvaal Diamond || American Topaz || Gemstones are Crystals || How Diamonds are Made || Diamond Mines || Diamond Durability || Industrial Diamonds || Conductor of Heat || Corundrum || Ruby and Sapphire || How are Diamonds Mined || How Diamond Prices are Determined || How to Buy Diamond Engagement Rings || How to Care For Your Diamond || How to Clean Your Diamonds || How to Sell a Diamond || How to Spot a Fake Diamond || Insuring Your Diamonds || Selecting Diamonds || Synthetic Diamonds|
Except for most blue diamonds,
which are semiconductors, diamonds are good electrical insulators,
meaning they reduce the flow of electricity. Blue diamonds owe their
semi-conductive property to boron impurities, which act as a doping
agent and cause p-type semiconductor behaviour.
Diamonds appear cold and hard, but theyíre good conductors of heat because of the strong chemical bonds within the crystal.
Most natural blue diamonds contain boron atoms which replace carbon atoms in the crystal matrix, and also have high thermal conductivity. Heat is a property contained in most materials, and has the tendency to flow to areas of lesser heat. A substance that is a thermal insulator reduced the flow of heat.
Diamonds are actually excellent conductors of heat, better than more well-known heat conductors like copper or silver. Diamonds will warm-up. Itís as if when we talk about a diamondís ďfire,Ē it can refer to it figuratively as well as literally!
As much as we associate diamonds for their beauty and use as jewellery, only about 20% of all diamonds mined are gem-quality. The rest are good only for industrial uses. Because itís the hardest substance, itís used to cut other materials such as stone, metal and concrete.
Itís also used to grind eyeglasses and computer chips.
Most industrial diamonds are mined, but scientists have successfully engineered synthetic industrial diamonds that have more versatile uses than mined diamonds. Now major companies like GE and even DeBeers make synthetic diamonds.
The primary use for these synthetic industrial diamonds is to conduct heat away from devices that require a constant temperature for safe and proper operation.
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