clkelyqld2
Top Gun
Joined: 10 Aug 2013
Posts: 7099
Read: 0 topics
Warns: 0/5 Location: England
|
Posted: Tue 18:25, 03 Sep 2013 Post subject: nike air jordan pas cher Surprising Benefits Of La |
|
|
Mined diamonds are rare and pricey. This may be the reason why it has come to be the symbol for love. With its unique strength, it [link widoczny dla zalogowanych] has also become the emblem for wealth and power. Today, lab created diamonds [link widoczny dla zalogowanych] has made the rare common.
Man has made a way to hasten the process of making this rare stone. [link widoczny dla zalogowanych] The result is remarkably similar to the natural gem. Between [link widoczny dla zalogowanych] the two, the only difference would now be the way they were processed.
It takes a simple carbon many years exposed in really extreme pressure and temperature to be a precious treasure. It requires [link widoczny dla zalogowanych] a hundred life time [link widoczny dla zalogowanych] and other extreme conditions plus luck to get the desired result, a feat no man can outlast. In the confine of a laboratory, the same condition with compressed time has given man the chance to outlive the whole process to benefit from it.
Two major methods are being used by big companies today for making this gemstone. The HPHT (High Pressure High Temperature) method and the CVD (Chemical Vapor Deposition) method are specifically making productions and profits today. Other methods are also available and are still under test for [link widoczny dla zalogowanych] viability [link widoczny dla zalogowanych] of commercial production.
High Pressure High Temperature HPHT method works by converting carbon at high temperature and pressure with the use of metal catalyst. Now this method is also used to treat natural mined stone that are less desirable. When subjected to HPHT, the low grade gem is turned into beautiful precious treasure. The process significantly [link widoczny dla zalogowanych] improves its appearance [link widoczny dla zalogowanych] and [link widoczny dla zalogowanych] color.
Developed in the 80's, CVD uses low pressure growth environment. In this method, the combination of vaporized carbon-plasma and hydrogen is deposited on a metal surface. It takes days to get this process completed.
Other techniques use explosion and implosion. Some of their names are Ultrasound Cavitation and Detonation Explosives. Unlike the HPHT [link widoczny dla zalogowanych] and CVD, they are still under testing phase and are not yet found to be viable for industrial use.
Lab created diamonds, regardless of how they were made, is as valuable as the original. It made life better and fancier. It also made the gem available and affordable as jewelry. Meanwhile, the industrial technologies advanced with the help of cheaper industrial diamonds.
相关的主题文章:
[link widoczny dla zalogowanych]
[link widoczny dla zalogowanych]
[url=http://www.vertu2008.com/home.php?mod=space&uid=120755][/url]
The post has been approved 0 times
|
|