Scientists Have Developed Nano-cubic Boron Nitride Harder Than Diamonds
Scientists Have Developed Nano-cubic Boron Nitride Harder Than Diamond
Diamonds will no longer be the hardest substance in the world! At present, scientists have artificially synthesized nano-scale cubic boron nitride, which has exceeded the hardness of diamonds.
According to the American Wired magazine, diamonds are not the hardest material in the world. Currently, the Nature magazine published in January pointed out that a new material has surpassed the hardness of diamonds.
A research team from scientists at the University of Chicago and other universities pointed out that the superhard material cubic boron nitride is a form of ultra-hard material that compresses boron nitride particles. Scientists have shown that this transparent material even exceeds the hardness of diamonds, with a Vickers hardness of 108 GPa, while synthetic diamonds have a Vickers hardness of 100 GPa
and that the material is twice the hardness of commercial hardest boron nitride.
The biggest secret of this material is the nanostructure. Tian Yongjun and other researchers began to use boron nitride particles like the onion structure (like the Russian doll structure) to compress to 15GPa at 1800 degrees Celsius, that's about 68,000 times the pressure of a car's tires, this crystalline material will recombine to form nanostructures.
Under the nanocrystalline structure, neighboring atoms share a boundary, which is like some apartment house. To make the material harder, scientists reduced the volume of the particles, making it harder to puncture.
Tian explained that the nanostructure makes the material harder to puncture. For boron nitride, the average size of the characteristic strength is 4 nanometers, but the corresponding result is that CBN is very stable at high temperatures.
In the future, the price of the superhard material will be comparable to the current commercial price of less hard CBN, which may be used in machining, grinding, drilling and cutting tools, as well as in the manufacture of scientific instruments.
As a superabrasive ltd, we can offer kinds of superabrasiveproducts for sale, anything you need, please contact us.
在线联系供应商
Other supplier products
 |
Diamond Wire Drawing Die Blanks | As one of the abrasive powdermanufactures,E-Grind supplies all types of diamond powdersincluding Resin bond diamond, Metal bond diamond, Saw Grit a... |
 |
PCD PCBN INSERT | We supply various types of PCD & PCBN Inserts for AUTO Engine Machining Industry, Aerospace Industry, Moto-cycle Industry etc. With ISO 9001:2... |
 |
Diamond Wire Drawing Die Blanks | The diamond pcd wire drawing die blanksare produced under ultra-high temperature and ultra-high pressure. It consists of diamond powder and metal c... |
 |
PDC (Polycrystalline Diamond Compact) Cutter | Polycrystalline diamond composite(PDC) E-Polycrystalline diamond composite(PDC) sheet is made of diamond particles and cemented carbide matrix sint... |
 |
E-Grind Superabrasives Product | E grindis a professional superabrasive ltd, we provide superabrasive, pcd diamond cutting tools, pcd diamond inserts, pcd diamond tools, diamond po... |
Same products
 |
供应天然金刚石修整笔、花岗岩刻字刀、雕刻刀、玻璃切割刀 | 卖方: 青岛晟鑫杰金刚石工具有限公司 | 青岛晟鑫杰金刚石工具有限公司 专业生产天然金刚笔、砂轮修正器、金刚石砂轮刀、金刚石砂轮、等金刚石工具。因为金刚石修整器本身就是一把刀具，需保持非常锋利。使用一个磨钝了的修整工具来修整砂轮表面，会... |
 |
Aluminum Oxide Fiber Disc | 卖方: CHANGZHOU RMN ABRASIVES CO., LTD | Aluminum Oxide Fiber Disc It is strong and has durable, long sanding life, high sanding performa... |
 |
AJ26M Abrasive Belts for Metal | 卖方: CHANGZHOU RMN ABRASIVES CO., LTD | AJ26M Abrasive Belts for Metal RMC AJ26M abrasive belts for metal backing is Jwt flexible and hi... |
 |
AJ25 Aluminium Oxide Abrasive Belts | 卖方: CHANGZHOU RMN ABRASIVES CO., LTD | AJ25 Aluminium Oxide Abrasive Belts The backing cloth make anti-slip treatment with high strengt... |
 |
AF37M Green Abrasive Film | 卖方: CHANGZHOU RMN ABRASIVES CO., LTD | RMC AF37M green abrasive microfinishing filmcan be used as Velcro and PSA disc, and also suitable... |
