| abstract |
A method for densifying a porous structure using boron nitride, and a porous structure densified with boron nitride, are disclosed. The method comprises producing densified articles in a very short time and enables the production of high-density, crack-free articles. According to the method, the porous structure is placed in a precursor selected from borazines of formula RBNH wherein R is a halogen or hydrogen, and the whole is induction heated at a pressure of at least 1.2 x 105 Pa to cause decomposition of the precursor and thereby form boron nitride which can be deposited inside the pores of the porous structure. |