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 :
developed, nitride, nano, scientists, boron, cubic, have
Royaume-Uni (UK) LE5 0HJ Cuir / Chaussures
Chaussures de bébé fille - 425

Wednesday 18 December 2013

Quantité : 12 - Prix : 41.25 €

Chaussures de bébé fille Numéro de style: bss-11613-425 Matériel - Coque: 65% polyurethane, 25% polyester, 10% coton; doublure: 65% polyester, 35% coton Tailles: 0/6, 6/12, 12/18 mois (pointures 17,18,19) Couleurs: rose et lilas Vendu par lot de 12 paires (différentes tailles...)

Sheldon International Ltd.

  • Sheldon
  • LE5 0HJ - Leicester
  • +44 116 2761069
Hong Kong 852 Biens d'équipement
Cell Phone Storage Power with Real 4400mAh Capacity(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 storage power for mobile, tablet, MP3 player, etc...

Solar Focus Co., Limited

Royaume-Uni (UK) LE5 0HJ Cuir / Chaussures
Chaussures de bébé garçon - 421

Wednesday 18 December 2013

Quantité : 12 - Prix : 41.25 €

Chaussures de bébé garçon Numéro de style: bss-11613-421 Matériel - Coque: 65% polyurethane, 25% polyester, 10% coton; doublure: 65% polyester, 35% coton Tailles: 0/6, 6/12, 12/18 mois (pointures 17,18,19) Couleurs: bleu et marne Vendu par lot de 12 paires (différentes tailles...)

Sheldon International Ltd.

  • Sheldon
  • LE5 0HJ - Leicester
  • +44 116 2761069
 

Paiement sécurisé

Paiement sécurisé

Informations

Les plus recherchés