Apr 12 2013
Nanoparticles are increasing being adapted for used in biological, chemical, and industrial areas. This article discusses the properties and applications of boron carbide nanoparticles. Boron and carbon are adjacent in the periodic table, with atomic numbers of 5 and 6 respectively.
Boron carbide is an extremely hard ceramic material. Boron carbide nanoparticles appear as gray black powder. They are graded as harmful, especially if inhaled.
The chemical properties of boron carbide nanoparticles are outlined in the following table.
||Boron [He] 2s2 2p1
Carbon [He] 2s2 2p2
The physical properties of boron carbide nanoparticles are given in the following table.
The thermal properties of boron carbide nanoparticles are provided in the table below.
Boron carbide nanoparticles can be synthesized via a reaction of boron that is obtained from thermal decomposition of magnesium diboride, using multiwall carbon nanotubes. The temperature for this process should be 1150°C (2102°F) for 3 h in vacuum. Good crystallinity can be achieved through this process.
The key applications of boron carbide nanoparticles are as follows:
- In boron neutron capture therapy, which is a therapy for treating brain cancer
- In biomedical and bioscience areas
- In coatings, plastics, and catalyst applications.