Algomtl
svgfair.com
 
Scientists Have Developed Nano-cubic Boron Nitride Harder Than Diamonds
Détails
Chine (Rép. pop) Habillement Enfant
Habillement Enfant

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 superabrasive products for sale, anything you need, please contact us.

Localisation : Room 1841, Tower A, Wanda Plaza, 171#, Zhongyuan Road, Zhengzhou City, Henan Province, China, 450000 zhengzhou,
Personne à contacter : Liu Locke, 0371 68616868

Bonne affaire : acheter au vendeur

Consultez notre guide pour effectuer une transaction en toute sécurité ! En aucun cas Algomtl ne peut être tenu responsable des annonces publiées. Seule la responsabilité du vendeur ou de l'acheteur en cas de litige est engagée.
Nous vous invitons à lire nos conditions générales d'utilisations. Vous pouvez aussi vous rendre sur nos FAQ et consulter notre page d'informations sur les risques liés à la contrefaçon.
Cette page concerne les importateurs et exportateurs de
Scientists Have Developed Nano-cubic Boron Nitride Harder Than Diamonds

Rechercher dans la catégorie : Habillement Enfant
Rechercher dans la catégorie :
boron, have, nitride, scientists, cubic, developed, nano
Hong Kong 852 Biens d'équipement
2013 Style Power Bank 4000mAh with Speaker(5061)

Wednesday 09 October 2013

Quantité : 3000 - Prix : $12

Model: SF-5061 Size: 30*30*137mm Battery: 4000mAh/26650 Material: ABS+PC N. Weight: 214g Life Time: >500 Input: 5V, 1A Output: 5V, 1A Colors: Blue, Orange, Green MOQ: 1000pcs Product Features 1. 2-in-1: it is a power bank for mobile and a stereo for cellphone, tablet...

Solar Focus Co., Limited

Hong Kong 852 Biens d'équipement
Backup Cellphone Batteries 4400mAh for Your Mobile(5003B)

Sunday 13 October 2013

Quantité : 3000 - Prix : $12

Model: SF-5003B Size: 80*80*26mm Battery: 4400mAh/18650 Material: ABS N. Weight: 150g Life Time: >500 Input: 5V, 800mA Output: 5V, 800mA/1.2A Colors: White, Black, Pink MOQ: 1000pcs Product Features 1. Portable: it is a cellphone batteries for mobile, tablet, MP3 player, etc...

Solar Focus Co., Limited

Vietnam 10000 Habillement / Mode
Smocked kid dresses

Thursday 19 December 2013

Quantité : 200pcs - Prix : $8.0 - $16.0

Babeeni - The leader of hand smocking clothing manufacturer for kids from 3m - 10yrs - OEM Service - Technic: 100% hand smocked - Size: 3mos-10yrs - Price: US$8.0 - $16.0 - Minimum order: 200 pieces (50pcs per design per color, 10pcs per size) - Delivery time: 25 - 30...

Babeeni Vietnam Company Limited

  • 10000 - Hanoi
  • +84 4 36 68 60 11
 

Paiement sécurisé

Paiement sécurisé

Informations

Les plus recherchés