Chemical and Physical Properties that are a problemm in drillbits

The issues diamonds have are usually environmental issues. Diamonds harm the earth a lot when professionals go down meters into the earth just to get those beautiful rocks out of the ground. Diamonds can cause environmental destruction from the digging. Although diamonds have many environmental issues it doesn't have many other issues.

Physical and Chemical properties that make diamonds ideal for drillbits

Physical:

• It is a poly-morph of the element carbon
• Is a ten on the hardness scale
• Hardest substance known to man; highest hardest so great for cutting things (like for drill bits)
• Near impossible to be scratched
• Difficult to break
• Can last for millenniums ("forever")
• Stiff
• Very effective abrasives

Chemical:

• Isn't compressible
• Has a low thermal expansion

Reference List:

Diamond. (2012, October 12). In Wikipedia. Retrieved November 3, 2012, from http://en.wikipedia.org/wiki/Diamond

Diamond - physical and chemical properties. (2006, November 8). In Farlangs. Retrieved November 3, 2012, from http://www.farlang.com/diamonds/crookes_diamonds/page_113

The physical properties of diamonds (n.d.). In Abazias diamonds. Retrieved November 3, 2012, from http://www.abazias.com/diamondblog/diamond-education/the-physical-properties-of-diamonds

How are diamonds used?. (n.d.). In Projects by students for students. Retrieved November 3, 2012, from http://library.thinkquest.org/5008/Used.htm

How does diamonds affect the enviroment?. (n.d.). In The Q&A Wiki. Retrieved November 3, 2012, from http://wiki.answers.com/Q/How_does_diamonds_affect_the_environment

Why are diamonds used in bits of drills?. (n.d.). In The Q&A Wiki. Retrieved November 3, 2012, from http://wiki.answers.com/Q/Why_are_diamonds_used_in_bits_of_drills

Why are diamonds used to make drill bits?. (n.d.). In The Q&A Wiki. Retrieved November 3, 2012, from http://wiki.answers.com/Q/Why_are_diamonds_used_to_make_drill_bits

Physical and Chemical Properties of Diamonds

Physical:

• Hardest substance in earth's existence - can scratch things and can only be scratched by other diamonds
• Solid
• Colours can range from white to blue, green to pink- even black (not always clear), but that means it contains impurities/ defects (flaws)
• Transparent - high clarity
• Not malleable
• Odourless
• High lustre
• Comes in different shapes
• Will shatter if hit with hammer - brittleness
• Not ductile - cannot be shaped, moulded or stretched
• Not viscous - no viscosity

Chemical:

• Chemical stability: not very reactive, even to strong acids and bases
• When heated in air or oxygen (700 degrees to 875 degrees Celsius), burns with production of carbonic acid
• Surface only can be oxidized a little by few oxidants at high temperature; acids and bases can be used to refine (improve, purify) synthetic (artificial) diamonds (diamonds not made naturally)

What are diamonds?

Diamonds are the hardest substances on earth. They are a solid, non metallic element. Diamonds are a form of carbon. Out of 100%, 20% of diamonds are used for jewellery, the rest of the percent of diamond usage is industrial, like for cutting tools, polishing hard metal and more. Diamonds are a pure substance.