Annoucement : Welcome to visit our website: www.funcmater.com, our main mailbox is sales@funcmater.com. Any inquiries, please check the official contact information on our website. Payment related business, please confirm with our salesman, Have a nice visit trip.
  +86-029-88993870               sales@funcmater.com
You are here: Home » News » News » Hexagonal boron nitride's properties

Hexagonal boron nitride's properties

Views:6     Author:Site Editor     Publish Time: 2022-01-11      Origin:Site

Because the molecular structure characteristics of hexagonal boron nitride, so it has many excellent properties, such as high thermal conductivity, high heat resistance, good lubricity, low friction coefficient, low thermal expansion coefficient, excellent dielectric properties and other physical properties, it also has the strong oxidation resistance, corrosion resistance is strong, stable chemical properties and chemical properties.

Excellent properties of hexagonal boron nitride

1. High heat resistance. Hexagonal boron nitride (H-BN) will sublimate when heated to 3000℃ or above in 0.1mpa nitrogen. Its strength at 1800℃ is 2 times that of room temperature, so it has excellent thermal shock resistance. It will not break when air-cooled to room temperature for dozens of times at 1500℃.  

2. High thermal conductivity. The thermal conductivity of hexagonal boron nitride products is about 33W/m· K, with similar thermal conductivity with stainless steel, the thermal conductivity is larger.  

3. Low expansion coefficient. Hexagonal boron nitride linear expansion coefficient is (2.0~6.5) *10-6/℃, second only to quartz glass, coupled with its high thermal conductivity, so the thermal shock resistance is excellent.  

4. Excellent electrical insulation. Hexagonal boron nitride has good insulation at high temperature, and the maximum volume resistivity of high purity hexagonal boron nitride can reach 1016~1018 ω •cm, even at 1000℃, there are still 104~106 ω •cm.  

5. Good corrosion resistance. Hexagonal boron nitride has good chemical stability and is not wetted by most molten metals, glass and salts, so it has high resistance to acid, alkali, molten metals and glass erosion, and has good chemical inertia.  

6. Low friction coefficient. Hexagonal boron nitride has excellent lubrication performance, friction coefficient is 0.16, does not increase at high temperature, higher temperature resistance than molybdenum disulfide, graphite, oxidation atmosphere can be used to 900℃, vacuum can be used to 2000℃.  

7. Machinability. Hexagonal boron nitride is easy to finish with conventional metal cutting techniques, with turning accuracy up to 0.05mm, so complex shaped products can be machined from hexagonal boron nitride blanks.

CONTACT US

 Address : No. 69, Gazelle Valley, High-Tech  Zone Xi’an City,Shaanxi Province, P.R.China
 Tel :  +86-29-88993870
 Fax : +86-29-89389972
 E-mail : sales@funcmater.com
 WeChat: railwaydu
                      L106174941

Information

  Address : No. 69,Gazelle Valley, High-    Tech Zone Xi’an City,Shaanxi Province, P.R.China
 Tel :   +86-29-88993870 
              +86-13519132051
 Fax :  +86-29-89389972
 E-mail : sales@funcmater.com
                   timdu@funcmater.com
 Purchase email : chris@funcmater.com
 Thin Film Unit:+86 15502916605
     Powder Unit:+86 13519132051
 Wechat: railwaydu
                       L106174941 

Global Agents

We are recruiting global agents, If you're
interested, Join us!
Feedback
Copyright  2021 XI'AN FUNCTION MATERIAL GROUP CO.,LTD
Sitemap   |   Support By GoodWaimao