Šešiakampio boro nitrido supratimas

Feb 09, 2022

Boron nitride is made up of nitrogen and boron atoms in the crystal, the crystal structure can be divided into: hexagonal boron nitride (HBN), dense rows of hexagonal boron nitride (WBN) and cubic boron nitride, the crystal structure of hexagonal boron nitride have similar graphite layer structure, loose, lubrication, easy absorption of moisture, light and other traits of white powder, say again so "white graphite. 


Hexagonal boron nitride has the same expansion coefficient as quartz, but ten times the thermal conductivity. Also has good Chemicalbook lubricity at high temperature, is an excellent high temperature solid lubricant, has strong neutron absorption capacity, chemical stability, chemical inertia to almost all molten metals. 


Šešiakampis boro nitridas netirpsta šaltame vandenyje. Kai vanduo verdamas, jis labai lėtai hidrolizuojasi ir gamina nedidelį kiekį boro rūgšties ir amoniako. Kambario temperatūroje nereaguoja su silpna rūgštimi ir stipria baze, šiek tiek tirpsta karštoje rūgštyje. Jis pasižymi dideliu atsparumu korozijai įvairioms neorganinėms rūgštims, bazėms, druskų tirpalams ir organiniams tirpikliams.